How much fuel pressure should a lb7 have?
How much fuel pressure should a lb7 have?
Note that the fuel rail pressure is at 24,053 psi. As stated previously, the fuel pressure with the Ignition relay unplugged needs to be a minimum of 2500 to 3500 psi during cranking for the return rate test results to be valid.
What kind of pump does a 6.6L LB7 Duramax use?
Lack Of A Fuel Lift Pump The 6.6L LB7 Duramax uses a high pressure common rail fuel system with direct injection. A major part of this fuel injection system is the CP3 fuel injection pump.
How to install a Duramax LB7 fuel injector?
LB7 Duramax Injectors Parts Part # & Link Fuel Injectors Bosch 0445120008 Dieselogic LB7 Injector Injector Installation Kit Merchant Automotive LB7 Duramax Injector Injector Puller Tool OTC 6778 Fuel Injector Line Kit MA-10215
What causes LB7 Duramax engine to overheat?
When the fan clutch is damaged, it prevents it from operating and giving the LB7 Duramax engine the additional cooling it needs. Overheating can also be attributed to a dirty or clogged radiator. Over time, your radiator can accumulate dirt, grime, and other gunk.
How to test a faulty fprv on a LB7 Duramax?
Watch how we test a faulty fprv on an 01-04 LB7 Duramax. Symptoms were hard/no start, long crank time, white smoke. Very little loss of power noticed. Truck has FASS pump no other upgrades Loading…
Lack Of A Fuel Lift Pump The 6.6L LB7 Duramax uses a high pressure common rail fuel system with direct injection. A major part of this fuel injection system is the CP3 fuel injection pump.
What’s the fuel pressure on a Duramax LB7?
4500-5500 is mine onna gauge. over 6k it lopes a little. Yes but I think he may be asking to diagnose a issue and he may not have the tools to able to see whats commanded/actual. Click to expand… If he can’t read desired and actual, he won’t be able to diagnose anything. Unless he has one of those gauges that T in to the factory sensor.
Is there any way to fix a Duramax LB7 injector?
Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. Unfortunately, there is no good way to fix the factory LB7 Duramax injectors other than replacement. When you’ve found a faulty injector, it needs to be replaced and unfortunately, it isn’t cheap.
What are the common problems with 6.6L Duramax?
9 Common 6.6L LB7 Duramax Problems. 1 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM acknowledged their problems when they corrected 2 2. Lack Of A Fuel Lift Pump. 3 3. Fuel Filter Housing O-Ring Leaks. 4 4. Water Pump Failures. 5 5. Overheating. More items
