Diesel Engine Overheating Under Load

They had the 2. A diesel engine in good condition should produce no visible smoke from the exhaust, under most operating conditions. engine overheating? white residue in engine compartment and under hood? if you have one or more of the symptoms above you need to bring your powerstoke 6. Mechanical losses from friction in the motor bearings and the fan for air cooling. A diesel engine is designed with protection systems to alert the operators of abnormal conditions and to prevent the engine from destroying itself. Since an engine requires a certain power reserve, especially when operating at full load, conventional thermostats start to open at an engine temperature of approximately 110°F by opening the coolant circuit. Empty it gets 23mpg hwy. Engine overload - reduce load. With thousands of Safari 1HZ turbo systems out there on roads and tracks all over the planet, Safari is the only manufacturer of turbocharger systems with the deep understanding of this engine and the engineering expertise to offer the most. – Test cell design and instrumentation operation – How the internal combustion engine works – Engine testing – Turbo~charging, variable vane geometry applications. Good Luck. Granted, overheating is most common in the summer so this might be uncomfortable, but it will reduce the engine load and help allow heat to dissipate. Engine Knocks Stale fuel. Due to the location of marine engines – enclosed in a boat – there is little air flow to help cool the engine after the combustion air is sucked into the engine. Stall torque is the torque produced by a mechanical device whose output rotational speed is zero. Tested it throughout the day with load and couldn't get it above half. I've had this problem ever since I bought the car ('91 TT) 3 months ago. some resistance on fan blades with engine shut down but not enough. com > Technical Discussion Area > Diesel Engine and Drivetrain > Heating up / Overheating under load. when i slow down the truck cools down. I had my boat de-winterized, oil, filters and impleller changed last month, took it out twice this year and it ran fine. I have a om617 turbo in a Toyota pickup I can drive in town and all over back roads and never over heat but as soon as I get on the hwy it heats up and sometimes blows water out the cap. Starting A Diesel Generator In Cold Weather In cold weather fuel does not vaporize very well in the combustion chamber and this makes starting difficult. Without a thermostat the engine would have no way of regulating the minimum heat range. WARNING Overloading or improper loading can affect handling and stability and cause a crash in which you can be hurt or killed. 6 turbo diesel engine. Here are some tips for troubleshooting for engine problems. If the ignition problem still continues then this might damage the engine’s rings, pistons or rod bearings. let us fix your truck before more expensive damage is done. This is much the same as a gasoline engine suffering from pre-ignition or spark knocking. Diesel mechanics recommend getting diesels up to operating temperature at least once a month, and to run there, under load, for at least an hour. Join the thousands of Powerstroke, Duramax, and Cummins diesel truck owners. You can always depend on Perkins engines, Perkins motors and Perkins diesel wherever you are. 5 Cummins 2500. New water pump and thermostat, fan clutch new at 20K miles, radiator steam cleaned by Freightliner two days ago when water pump replaced, belt good. Engine Overheating Under Load. In this auto repair article, we will cover several things that can be looked at to help diagnose the problem. When we turn on the heater the temp immediately begins to fall back to normal within a minute or less. The car engine will start losing power under load as the mixture of heat and pressure exceeds the octane rating of the fuel. Then when I went out for the third time it ran fine until I shut it down to float for a while. It has one in the front and one in the rear. Also, because of the cooling effect of the EGR system, the engine can run cooler when the vehicle is cruising under light load. 9-Liter Cummins Engines are used in many applications including step vans, uniform and commercial delivery vehicles. Kubota manufactures a variety of diesel engines intended for use in vehicles, construction equipment, and other industrial applications. The low coolant level shutdown prevents overheating (standard on radiator models only). In diesel engines, air and fuel are infused together. I had my boat de-winterized, oil, filters and impleller changed last month, took it out twice this year and it ran fine. If you don't have enough coolant in there to do the job, heat will build up and your engine will overheat. Diesel Rodeos are the same as Wizards up front but dont have problems. Too much engine oil - drain oil to correct level. If your vehicle has a fuel delivery issue, it will literally starve to death. The correct quantity of oil can be injected by opening valves from a pressurized system, just. by Paul Smith (turbovans. This weekend I towed my camper about an hour away. When you have checked all the possible causes listed and you are still experiencing the problem, see your John Deere dealer. The same thing happens any time the engine comes under load and manifold vacuum drops. 9-Liter Cummins Engines are used in many applications including step vans, uniform and commercial delivery vehicles. going easy on it. 6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. Whether we are pulling a load or not the truck overheat indicator come on and reflects overheating. • Use the appropriate transmission gear to prevent engine lugging. The symptom was that the engine would starve of fuel under heavy load. detonation throughout the load range c. Not to be reproduced or used without the permission of Trans Atlantic Diesels Inc. High altitude operation. 3 Powerstroke is the radiator. I have an overheating problem under load. Ford Check Engine Light Codes. If the problem is oil that’s too thin, there will probably be blue smoke at all revs, but especially after a period of idling and also when the engine is at high revs or under heavy load. I was pulling 6000lb up mountain with 06F350 6. This article applies to the Ford F-250, F-350 Diesel (2005-2014). engine and generator speed in R. Look at the exhaust under load. The "sharp" misfire, on the other hand, frequently relates to ignition problems. This is second Dodge 1500 Ram that I have owned. The 205hp engine using 16 liters an hour means the engine is producing an average of 77hp. One way that a head gasket failure could cause overheating would be if the gasket failed between a combustion chamber and the cooling system. That engine does have 2 thermostats. I also installed the egr delete kit on it. Without a thermostat the engine would have no way of regulating the minimum heat range. Ford's lawsuit alleges the Warrenville, Illinois-based Navistar owes the automaker money under an agreement to share engine-related warranty costs. The Fat Controller is right; the new diesel, Derek, is having issues while going up Gordon's Hill, and, while halfway up his engine coughs causing black smoke to billow out of his exhaust. such as engine room cooling. Inspect safety devices. An electronic, isochronous governor delivers precise frequency regulation. Above threshold engine speed 320, deactivating one or more engine cylinders while limiting engine load may not reduce engine overheating. I'll try to find the name and PM you. 4 Common Diesel Fuel Injection Pump Problems Fuel injection pump performance is closely tied to engine performance. when i slow down the truck cools down. The fan clutch may also be going bad. If your diesel engine is showing signs of overheating, don't panic until you do some detective work. Lower rad hose seems fine,but like you said would need to check it under load. Most automatic transmissions fail due to a breakdown of the transmission fluid (oil) caused by overheating. Make sure that you are checking your injections for clogs or leaks to keep everything running smoothly. Stall torque is the torque produced by a mechanical device whose output rotational speed is zero. You use your service brakes less so they last up to three times longer. turbo and internal engine components. 0l when engine heated up very quickly, nearly to the red mark. We: test the engine under specific conditions, ask ourselves 'when isn't the engine running as well as it could', think hard about which parameters we have available to affect the operation of the engine under the above circumstances,. Because propane boils at -44 (below zero), the gas will freeze if it can not absorb enough ambient heat to compensate for the boiling process. I have always been told that this is too high for a diesel and he said that the big ones won't run that high but the B5. It is particularly a problem with 4×4 and light vehicle diesels. The first step in diagnosing an overheating problem is to ensure that there is enough fluid in the radiator. the core plugs when removed revealed a solid wall of what looked like metal, this was just corrosion and had to be broken up. provides comfort under harsh working component life and minimise the risk of overheating in n Engine options – LPG, Diesel, Dual Fuel. A diesel engine in good condition should produce no visible smoke from the exhaust, under most operating conditions. Is it possible that I have a bad gasket that under heavy load allows compression and exhaust gas into the water jacket heating it up under heavy load?. Both of these units can be tested individually. Just be thankful we didn't get the gasoline 450, they were terrible for engine failures. ” While there’s no point now in. 3 Liter Power Stroke Diesel engine, in no particular. With a GCWR of 16,000#, you are well under the max load with your combination so the amount your towing should not be a reason for the overheat condition. Clogged Diesel Injectors: If your injection system is having trouble releasing fuel, the engine may have to work too hard to compensate. A guy looked at it and said the thermostat was the wrong size so we changed that. CAUTION: Avoid overheating. Integral vibration isolation eliminates the need for under-unit vibration spring isolators. The only real downside was a steady 9mpg with the trailer on it. engine and generator speed in R. This fan assembly is designed to regulate the fan speed and maintain an efficient engine coolant temperature regardless of the variations in the engine load or outside air. The ECM/PCM controls the operation of the fan based on engine rpm, coolant temperature, ambient temperature, vehicle speed, transmission temperature, load, etc. single-hull vessels, hydrofoils, catamarans, hovercraft) and yachts Engine type 16V 4000 M73 16V 4000 M73L Rated power ICFN kW (bhp) 2560 (3430) 2880 (3860) Speed rpm 1970 2050 Number of cylinders 16 16. Re: Overheating ADE 407T I am not aware of any general problem with overheating on any ADE engine. the one in the rear (if defective) could cause this problem, it is not fully open until 212 degrees. org: an open forum dedicated to the discussion and debate about our beloved sports car the DeLorean, its maker, and anything interesting in-between. in BNE that specialises in reco heads for diesel motors (Mick's dad got a 3L head and parts and gaskets for just under $1k at trade prices - he only needed some shims to finish the job). If you look on the front of the engine there should. Engine overload - reduce load. At this point it, was clear that the overheating problem was being caused by excessive heat load. If I revved the engine really high it would cool off and. Air conditioning problem 2006 F-250 6. , voltage, amperes, frequency, power factor, engine temperatures, engine oil pressure, hour meter readings. In diagnosing the misfire, some information is needed about the maintenance of the vehicle. However there are several common problems that can develop over time. The hoses and engine compartment were extremely hot to the touch like it did overheat, but the gauge did not show this. 3, ISC or ISL) creates up to 237 hp of retarding power to help you slow down. When talking about the Ford 6. temp never even goes up at city driving. Myself and my friends are all gas engine mechanics and don't have much knowledge of diesel engines. Fill radiator completely with water. overheating under load The truck coolant temperature will start climbing when under a hard pull like towing a car trailer or a utility trailer with a tractor on it up long grades as in WVa. Not anymore! The Safari professionally developed and engineered Safari Intercooled Turbo System for Toyota's 1HZ diesel delivers amazing performance. 1 Engine Cooling Approximately 25 to 30 percent of the total heat input to the engine supplied by the fuel is absorbed by the engine cooling system. The reasons of the recession of heat dissipation capacity: (1) The insufficient cooling water. With enough load on the engine, it may have overheated. overheating problem Chief's point should be the first thing to check--no flow no cooling. Navistar builds diesel engines for Ford's Super Duty pickup trucks, which comprise about 40 percent of F-Series truck sales. Perkins has a wealth of knowledge about diesel engines amassed through 85 years of research, development and testing of its own models. Subject: <300> Engine cutting out under braking. If I revved the engine really high it would cool off and. It can also be checked by opening the hood and watching the fan as the truck is shut off. It’s best to apply a heavy load to the engine during the “break-in period” in order to seat the rings as quickly as possible. Is it deep black and cloud like? If so the problem is probably air related. There could be a number of reasons why your gauge is "running hot. You said you had replaced one. Engine leaks A more serious form of internal leak would be one within the engine where the coolant, leaks into the cylinders through a leaky head gasket. Hot Shot’s Secret created our diesel diagnostic tool to help you identify common symptoms your engine may be experiencing and learn what you can do about them. The engine under study is a commercial DI, water cooled four cylinders, in-line, turbocharged aspirated with intercooler diesel engine whose major specifications are shown in Table 1,. Just started occasional overheating alarm for no apparent reason such as load, hills or outside temperature. White Smoke - white smoke means that the fuel that is being injected into the combustion chamber is not being burned properly. Eventually, on mine, the engine stopped running entirely. While under load visually inspect the engine especially for leaks and vibrating components. Dieseling (in the sense of engine run-on, and disregarding combustible gaseous mixtures via the air intake) can also occur in diesel engines, when the piston or seals fail due to overheating, admitting engine oil into the cylinder. If you've determined that your engine has  overheated, there are any number of reasons for this, from operating under extremely hot temperatures to low engine coolant to a bad radiator. 2/ Diesel engines use about 0. I bought a Caterpillar diesel so I wouldn't have this problem at 117,000. If this happens, you will most likely be in need of a coolant flush and fill. The best way to increase your diesel truck's fuel mileage is to upgrade with a MPG Performance Module or Duramax Tuner. Utility Task Vehicles. BLACK smoke. For your largest power needs in any environment, Cat ® 3406C Industrial Diesel Engines offer the unsurpassed performance and durability your customers need to keep their industrial applications and operations running. Myself and my friends are all gas engine mechanics and don't have much knowledge of diesel engines. The symptom was that the engine would starve of fuel under heavy load. By James Hamilton and Jennifer Hamilton. Oh and the "diesel" coolant in the old days diesel blocks were susceptible to pitting when the coolant cavitated due to the pinging that's a normal part of diesel ignition. The system using injectors, fuel injection pump, fuel filter, and fuel lines is called fuel injection system. Unlike your automobile, your boat is always "pulling", as if it is in a perpetual state of "going up hill. Loose connecting rod. I have a Volvo 200hp 1987 model AQAD41A diesel, with a DP290 leg. If a permanent load arises due to an engine that starts poorly or not at all (incorrect adjustment, a fault in the fuel supply or the ignition system, or mechanical faults), this leads to overheating. As engine temperatures build up they tend to run away and if you can't keep them under control they quickly rise to critical levels. Hopefully it was just debris and trash not letting enough air in and the coil overheating and shutting down. such as engine room cooling. You will need either an infra-red heat gun [can be rented] or an automotive test themometer to accurately determine the engine coolant temp. If you own a diesel car, you probably have a diesel particulate filter, however, you may not know exactly what this is or how to maintain it. Over time, the coolant's ability to dissipate heat becomes compromised. Engine Overheating Under Load. Not sure how many bubbles you are making, but some diesel engines create bubbles by cavitation. The temp guage went to Red(240) for a few minutes after towing and then would return to around 210. Dodge/Ram Diesel Tech - OVerheating under load. Not to be reproduced or used without the permission of Trans Atlantic Diesels Inc. I got to admit I was a little upset when I got charged for a little piece of plastic that was broke off my core, resulting in half the refund back, but in the end walt made it right. The bottom line is that the manufacturer designed our engines to run with them installed. If your engine overheats significantly, it may suffer extreme failure. Dialing down the RPM’s may allow the engine to recover and run well at a more leisurely pace. If you own a diesel car, you probably have a diesel particulate filter, however, you may not know exactly what this is or how to maintain it. It can also be checked by opening the hood and watching the fan as the truck is shut off. A diesel engine may be equipped with an ether injection system Used to assist the starting of a diesel engine in cold weather Current ether injection systems are usually controlled by an ECM Warning!! Do not use ether starting fluids on Diesel engines equipped with glow plugs, intake air pre-heaters or Flamestart (CAT) starting aids. Integral vibration isolation eliminates the need for under-unit vibration spring isolators. The trans guage stays cool as a cucumber and the engine fan is engaged just fine. Air conditioning problem 2006 F-250 6. By a large margin, the most common cause for engine overheating is simply a low coolant level. The DDE system electronically regulates injection timing and fuel delivery rate under all operating conditions. Nissan Patrol & Landcruiser Overheating Problems Time and time again, we are contacted by customers who have overheating problems with their diesel engines that they cannot rectify. Normal pressure is 10 PSI at idle and they typically drop close to zero PSI under load. When we turn on the heater the temp immediately begins to fall back to normal within a minute or less. Remove the radiator cap after allowing the engine to cool, and, if necessary, add coolant until the level is about 3/4 in. Low levels or loss of coolant, poor air flow through the radiator and a defective thermostat are just a few of the problems that could cause a diesel engine to overheat. Engine overload - reduce load. The methods of creating this scenario are widely diverse. Recently my 1998 Dodge 24-valve Diesel started overheating when towing my 5th-wheel over the mountians. Under heavy load, such as driving up long hills and/or high speeds, the temperature gauge would begin to rise, but the cabin heat would eventually begin to blow cold. No, this is not plagiarism! If you have read a slightly less polished compilation on the Internet here, don't write me a nasty e-mail saying that I stole this please!. A range of factors can be responsible for this problem. 0l diesel in to t&r performance immediatly. One comment you made, is that the engine didn't cool down at an idle after overheating. Cat® C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. Any stress and the truck would start to run hot. Consequential damage as a result of this overheating is generally in the form of short-circuits due to the insulation burning. Start engine with radiator cap off. When you have checked all the possible causes listed and you are still experiencing the problem, see your John Deere dealer. When under pressure, water and engine coolant boil at a higher temperature. I Have seen the txchristofer money maker video on his duramax truck overheating. A 16:1 to 20:1 compression ratio, common to small high speed diesel engines means that the air has been compressed to one-sixteenth or one twentieth of its original volume. Even mild overheating can cause serious damage to expensive engine components. 0l diesel in to t&r performance immediatly. Fuel and/or fuel filter is dirty. • Do not operate the engine at idle for prolonged periods. A short puff of smoke when an engine is accelerated under load may be acceptable, due to the lag before the air flow is able to match the volume of diesel injected into the cylinders. Start engine with radiator cap off. 0 Diesel that when the engine feels excessive load it activates. The temp guage will show about normal,then it will peg out for a minute or 2,then goes right back to normal. Diesel engines have reputations for long lives, yet many marine diesels don't make it past the first. Under normal conditions it was fine. Original owner of 2008 Fleetwood Expedition with 48K miles. hitachi 225 overheating only under load Mechanics Hub › Forums › Large Mining Equipment › Excavators/Shovels › hitachi 225 overheating only under load This topic contains 9 replies, has 5 voices, and was last updated by daniel figueiredo 6 years, 3 months ago. Also be sure there are no brakes or tires dragging. Recently it began spitting oil droplets from the exhaust. This is why certain engines require a specially formulated antifreeze, to prevent that cavitation from damaging the internal parts. Available in 5W-30 or 0W-30 A full synthetic belt transmission oil with exceled lubrication and protection against water ingression and wear under high load. Every engine has an optimal heat range to run efficiently, in general 190°F to 210°F. I assume your oil and oil level is fine. (b) Engine oil pressure drops below approximately 15 psi (103 kPa) with engine under a load. Original owner of 2008 Fleetwood Expedition with 48K miles. Causes of Diesel Engine Overheating Overheating can be a serious issue within a diesel engine. 7k 75mph 200 miles!. MARINE ENGINE OVERHEATING SOME CAUSES & SUGGESTIED REMEDIES This section applies to heat exchanger cooled marine engines and lists some possible causes & remedies for overheating conditions. Snyder is back with more tips & tricks to help keep a Ford 6. Apart from the radiator, is the cooling fan drawing strong air when running? The overheating would cause the water tank to expand. Marine engines have a tough life, they are expected to run under load all of the time. Diesel engines need a high compression ratio compressed the air sufficient to reach the temperature for ignition. Further, operation of a motor with above a. It was a little tricky and confusing to put on, but walt walked me through it and it was a huge improvement. If you don't have enough coolant in there to do the job, heat will build up and your engine will overheat. Is this 2600 rpm under load? You are most likely overpropped if this is happening while motoring. A Short Troubleshooting Guide for Overheating Air-Cooled VWs. This both reduced engine wear and reduced smoke. I was told by the tech this has been a major problem with the heads on the 6. many busses w/ type4 engines get that hot under load in the summer. Overheating is a common symptom of marine diesel engine blockage. The engine will sound different when locked and under a load. framingjohndeloreanfilm. Re: Overheating ADE 407T I am not aware of any general problem with overheating on any ADE engine. The Major Factor Governing Cooling System Heat Transfer. Test safety shut-off controls. 6 Liter Engine. I believe the fuel mixture is too rich`but see no way of adjusting it. The heat added by the trans cooler results in warmer water entering the engine. A diesel engine is designed with protection systems to alert the operators of abnormal conditions and to prevent the engine from destroying itself. Engine Testing and Instrumentation 2 Engine Testing Topics To develop your understanding of why engine testing is done. It only happens when towing or in 4wd on the beach. Utility Task Vehicles. Bought one in 1998 and about 45,000 miles started overheating. Use the coolant solution recommended by the engine manufacturer. Check your belts. I have a problem with my 2004 4300 dt466 international truck overheating, we have put a new radiator , new water pump, new thermostat, new hoses, new clutch fan, we have even changed radiator with another truck we have with same engine and it didnt over heat in other truck but did overheat in this one. Hot Shot’s Secret created our diesel diagnostic tool to help you identify common symptoms your engine may be experiencing and learn what you can do about them. There will probably be what looks like 3 radiators in front of the engine. I am suspecting it is combustion related and could be a fuel injection problem or a timing problem. This forum has some real gurus who can tell you just about anything you need to know about your. This represents the combined *opinion* of the group and should be used as a guide only, as to what is known/possible with 100 Series, as adjustments, technical tips, and accessories. The normal operating temperature of the engine is around the same as the boiling temperature of the coolant, and with the engine under load up hills, it will rise slightly further. I have a 2006 Dodge Ram 1500 and on cold starts, in park, it sounds like my radiator fan is spinning double time. Most gasoline engines (not diesel) have a normal operating range of 195 to 220 degrees. Engines don't have hearts or souls. Too much advance at too low rpm may cause an overheating and/or a ping problem, which could lead to engine damage. Is this 2600 rpm under load? You are most likely overpropped if this is happening while motoring. The cooling system of an engine is designed as a sealed system with the engine coolant held under pressure. The vehicle was being driven when the operator noticed the vehicle losing power and then stalled. I have a 2004 250 w/the 6. 22re toyota pickup. The cooling system must prevent the engine from overheating and prevent the engine from being too cold in winter. This forum has some real gurus who can tell you just about anything you need to know about your. Leading me to get a hell of a deal on it. Engage trans into gear, and get underway, while warming up the engine under light load [ don't run over 1/2 max rpm ] When temp gauge approaches operating temp, run at normal cruise rpm, usually about 3/4 of max rpm. An engine that hesitates, stumbles or misfires when accelerating or when it is under load, is an engine that is either sucking too much air, not getting enough fuel, or misfiring. Heater isn't getting hot either. This may cause you to run up against the thermostat and other flow restrictions quicker. Engine shudder and power loss at high rpms under load -- pls Help! Car is an old 1993 Honda Civic 1. Connect a jumper from DF on the generator to the generator frame. 6-10 Overheating, Engine 5-28 At Least. Note that the percent unbalance calculated in the above formula is not acceptable. 3L Power Stroke engines in the ’94½ Ford F-350. Modern diesel cars (since 2009) have to be fitted with a Diesel Particulate Filter (DPF) in the exhaust to stop this soot passing into the atmosphere. There will probably be what looks like 3 radiators in front of the engine. Well, in fairness to the garage owner, he was talking about 50% being normal under load in this hot Pune weather. Mechanical losses from friction in the motor bearings and the fan for air cooling. The symptom is more pronounced when the engine is at operating temperature. Subject: <300> Engine cutting out under braking. Diesel engine spits oil from exhaust Tractor Engine Repair Rebuild Tractor Engine Repair Rebuild I have a Ford 1700 diesel that has about 1600 hrs on it. 4 Diesel which is really driving me crazy! The problem is the engine runs roughly, paricularly under acceleration and appears to get better if I accelerate hard. 3L Power Stroke engines in the ’94½ Ford F-350. The Fat Controller is right; the new diesel, Derek, is having issues while going up Gordon's Hill, and, while halfway up his engine coughs causing black smoke to billow out of his exhaust. Once the impeller was replaced, water flow improved and resulted in lower engine temperature that was within the normal operating range. Is it deep black and cloud like? If so the problem is probably air related. Re: Engine Overheating Issues May 09 2014, 2:09pm My vehicle is a 2012 6. The problem in a turbo diesel is that, at a certain point, the extra fuel will not mean extra power. Combustion gasses could leak into the water jacket and displace coolant leading to the overheating. The only real downside was a steady 9mpg with the trailer on it. The vent line on my 2000 melted shut since it was routed along the top of the frame rail close to the exhaust. However, in older engines the engine temperature was kept below this ideal temperature level to prevent component damage. I have done extensive work to try to find out the problem and at am the end of my rope for a solution. I think the engine is pinging under load (sounds kind of like a loud diesel engine for a few seconds while accelerating). The bottom line is that the manufacturer designed our engines to run with them installed. When the temperature goes above 200, start getting worried. Mechanical losses from friction in the motor bearings and the fan for air cooling. Engine Noise Under Load was created by druggernaught just wondering if you might be able to tell me a little more about this engine noise i am getting when driving the my 1990 Toyota Corolla 1. He has a website where he sells a small radiator and a electric fan that fits in front and lower that helps the duramax overheat problem. Myself and my friends are all gas engine mechanics and don't have much knowledge of diesel engines. fwiw: There's a co. Our high performance diesel engines are manufactured with all brand new parts and produced to the specific OEM serial numbers to match your application. I am suspecting it is combustion related and could be a fuel injection problem or a timing problem. Marine Engines. I just checked autozone and they do offer 3 fan clutches. Keep An Eye On The Temperature Gauge. Be sure the air side of the radiator and the grill is not blocked with chaff and dust.

Diesel Engine Overheating Under Load