When does a Duramax diesel engine start leaking fluid?
Leaks are most common when the fluid is cold and on trucks running high idles. Some folks have a consistent leak while others tend to only leak when the engine is cold. Fluid leaks are important to catch early as running low on fluid can cause catastrophic damage to the transmission.
What are the symptoms of a Duramax water pump failure?
Duramax Water Pump Failure Symptoms 1 Engine overheating 2 Leaking engine coolant 3 Frequent low coolant warnings / refills 4 Water pump is making weird squeaking noises 5 Steam coming from the radiator
What are the most common Duramax 6.6L engine problems?
5 Most Common LBZ Duramax 6.6L Engine Problems. 1 1. LBZ Cracked Pistons. The LBZ is revered for its tune-only performance capabilities. With various upgrades, this engine is easily capable of 2 2. Duramax LBZ Water Pump Failure. 3 3. Glow Plug Failure – LBZ. 4 4. Allison 1000 Transmission Line Leaks. 5 5. Duramax EGR Problems.
What causes head gasket failure on LLY Duramax?
Head Gasket Failure – LLY Duramax The LLY has the largest turbo in it out of any other 6.6L Duramax variants. Outside of it being the largest turbo, it had the largest compressor wheel and the tallest exhaust vanes. The end result is having an extremely efficient and high-flowing turbocharger.
What causes the injector on a Duramax to leak?
Leaking Injectors—LB7 One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat.
Head Gasket Failure – LLY Duramax The LLY has the largest turbo in it out of any other 6.6L Duramax variants. Outside of it being the largest turbo, it had the largest compressor wheel and the tallest exhaust vanes. The end result is having an extremely efficient and high-flowing turbocharger.
What are the most common LLY Duramax engine problems?
The 6 Most Common LLY Duramax Problems. 1 1. LLY Bent Rods. While the LLY made competitive performance numbers back in 2004, the engine is certainly not competitive to the modern day diesels. 2 2. Head Gasket Failure – LLY Duramax. 3 3. EGR Valve Failure. 4 4. Glow Plug Failue – 2006 LLY Duramax. 5 5. Overheating in Pre-2006 Models.