Duramax Water Pump Leak

Depending on where it s leaking from the oil cooler assembly driver side rear of the motor has oil coolant close to each other the other as stated above is the water pump weep hole cause the front engine cover has oil and coolant close to each other and only a shaft seal between them.

Duramax water pump leak. In this case the o. Jump to latest follow 1 5 of 5 posts. A leaking water pump seal can be the result of a bad head gasket or lb7 injector cup seal leak should compression pressure find its way into the cooling system. Discussion starter 1 feb 16 2013.

2003 chevy dually crewcab duramax. 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. Chevy gmc duramax 01 04 5 lb7 forums. Leaking injectors lb7 one thing the 01 04 lb7 duramax is notorious for is injector failure.

Check out this quick component location and diagnostic tips on how to locate and properly test a suspected coolant leak at the water pump. Joined mar 12 2011 35 posts. Merchant automotive water pump kit w cover lb7 lly 2001 2005 duramax 2004 5 lly 2500hd efilive egr blocked pcv reroute resonater plugged nicktane fuel filter adapter 4in magnaflow exhaust lbz mouthpiece afe cai arp head studs ma700 trans with brace and pump rub fix by merchant auto. I was on a trip not towing and drove mine 500 miles with a bad water pump when i took it apart the housing was chewed up from the impeller hitting the housing.

I would not go on a 2000 mile trip with a leaking water pump. As mentioned earlier a typical cooling system operates at about 8 10 psi when the engine is at operating temperature. Dually club member 385. 2012 roadwarrior 42ft toyhauler.