What temp is too hot for an Allison transmission?

Temperatures from 230-240 have been reached with no damage to the transmission. If you are seeing temps above 225 degrees on a regular basis you should check your fluid level. Fluid levels to high may cause excessive temperature.

What to do about a Duramax 6.6 LB7 engine?

If you are having a problem with your 2001-2004 Duramax 6.6 LB7 diesel engine, please feel free to give us a call. We carry a full line of repair and performance parts for these engines that we install in our shop on a regular basis. Odds are we have run across your problem before and would be glad to help. Call us at 1-877-367-9351.

What to do if your Duramax has a cold start?

Perform a glow plug system and intake air heater check even if there is no complaint of a cold start problem. 1. Engine compression. 2. Dilution of the oil with fuel. 3. Engine coolant temperature sensor. 4. Rail pressure sensor. 5. Proper fuel supply to the high-pressure pump.

What causes a Duramax diesel engine to heat up?

When the engine is working hard, the turbocharger is drawing in a ton of air, and the restrictive stock turbo inlet tube can effectively choke the VGT turbocharger causing the compressor outlet temperature to skyrocket, heating up the intercooler, and ultimately raising the temperature of combustion and the coolant temp.

Why is my Duramax engine cranking but not running?

If the engine cranks but does not run condition occurs only in cold ambient temperatures, it may be due to ice blockage at the fuel pickup in the fuel tank–This will be indicated by a high vacuum in the supply lines while cranking and the problem will disappear after the vehicle is brought into the service bay.

Why does my Duramax diesel engine keep overheating?

I and 3 friends with duramax diesels are having same issues. The top radiator hose is collapsing ,preventing flow of coolant to engine. Replacing hose seems to fix problem for a while but need to figure out why the hose is collapsing when engine is under heavy load ,pulling trailer up long grades.

Are there any problems with my 2003 Duramax?

Thaks for the help. injectors,water pump,headgaskets,injectors again,instrument cluster,steering shaft,pinion seal,and injectors again. I have on 03 with 66,000 on it and know problems. Friend of mine has 03 asmost same truck and know problems with 145,000 on it. Sure love mine. P:S Injectors should be warrantied to 200,000.

Are there any issues with the Duramax fuel pump?

The new injectors available from us and others are updated and do not have the cracking issue. Fuel Filter Housing Oring Leaks – The Duramax fuel system does not have any sort of low pressure fuel pump pushing fuel to the engine from the tank.