I have a 06 lbz. It is throwing a P0087. It was putting out 2800 psi fuel pressureat idle wouldn't revel past 2000 rpm. I cleared the code & revved the motor to 3000 rpm. When I let off the throttle it Died & started pouring fuel out the back of the motor at least a gallon or more. There is also a little bit of fuel in Oil now.
LBZ: LBZ pouring fuel down the back of the motor
- Thread starter amaster
- Start date
The freeze plug blows out of the cp3 pump and leaks fuel out everywhere. You're gonna need a new pump more than likely unless it's a broken fuel line.
Check fuel rails also. I had one a buddies truck in that was doing the same thing but probably not as bad as yours and one of the fuel line fittings on his fuel rail was leaking and fuel would run down and fill the valley up with fuel.
In your case you it does sound like one of the plugs came out of your cp3.
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In your case you it does sound like one of the plugs came out of your cp3.
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I had the relief valve go out on me.. dump fuel down back of the block ..
Start simple things first
Start simple things first
Need a scan tool to increase rail psi at idle to make it more obvious where it's coming from. Last one I did I had to strip bunch of stuff off, then reassemble the cooling system and start it. The side of the cp3 was split open.