Fuel Line Leak, Replaced Injectors and P0093 Code

[MCD176]

As the title says I began this week with getting my reman injectors installed, GM Stealer advised me that injector #4 was bad, so I changed all 8, The truck before injector replacement was going into limp mode and throwing the P0093 DTC code, after replacement, I took truck out and ran it hard up a steep hill this is where it would limp before, WELL it did it again after the new injectors were installed.

after banging my head against the wall I started looking at other things that may be wrong and I located the small line coming from the fuel cooler was wet as well as the fram, I removed the plastic clip holding the line and fuel dripped out, started truck and fuel really leaked out.

Knowing the above leak could this be the culprit putting my truck into limp mode??? I will pick up fuel hose tommorow to fix the leak.

Please tell me what you guys think?

 

[JMK777]

check balance rates? do you smell fuel any where or in the crankcase or valley? how did all the fuel lines that connect the rail to the injector's look?

 

[MCD176]

JMK777

The crankcase smells normal from dipstick, I do plan on draining oil to check further and then run it more and re-xheck if after I fix the leak that it still Limps, I dont have a scan tool to check rates but have an appt for a diesel shop to check the whole fuel system for $300, im hoping after I fix the line leak that fixes the problem but im probably not that lucky

 

[blk smoke lb7]

JMK777

The crankcase smells normal from dipstick, I do plan on draining oil to check further and then run it more and re-xheck if after I fix the leak that it still Limps, I dont have a scan tool to check rates but have an appt for a diesel shop to check the whole fuel system for $300, im hoping after I fix the line leak that fixes the problem but im probably not that lucky

Would help if you fill out your sig so we know what truck we are dealing with


Do you have a push pump or is the cp3 trying to draw from the tank on its own?

 

[MCD176]

2001 GMC LB7 Duramax 142K Miles

CP3 only drawing from fuel tank, appears main leak is coming from the 3/8" line

 

[blk smoke lb7]

Fixing the leak should cure your problem I would think is your truck an 01?

 

[MCD176]

Yes sir its an 01, Its def been leaking for awhile, the frame had alot of fuel on it, it just never dripped like it is now, I will let you know

Thanks,

Mike

 

[chevyburnout1]

If the leak is from the 3/8" fuel line from the fuel cooler that is not your issue, as that is the return line heading back to the tank.