I can smell gas

[ChristmasXJ]

96 4.0 you can smell gas pretty good when u stop and turn it off. Should I just go through the steps to solve running rich?

 

[IGOCOMMANDO]

First thing I would check would be the injector and fuel pressure regulator o-rings. I think you should look for fuel leaks. The computer adjusts for running rich.

 

[ERratIC]

Look for leaks

 

[JJacobs]

Find and fix the leak, car-b-ques suck.

 

[birchlakeXJ]

More than likely a leak somewhere. Find where the smell is the strongest and start there but know that it could be anywhere from the tank itself all the way along the fuel line up into the engine bay.

Gotta put your time in to find leaks. No shortcuts really.

 

[Dest]

Only smell? No dripping anywhere?

 

[bmpweXJ]

I've had that problem too.... this helped

 

[IslanderOffRoad]

Is your header cracked?

A cracked header sends a too-lean reading to the downstream O2 sensor and the ECM compensates with extra fuel causing a rich condition and eventually fouling your cat.

 

[ChevelleSSLS6]

I had the fuel line leak by the fuel filter... check that.

 

[ChristmasXJ]

No leaks. I think islander is on the right path. 200,000 miles on the truck and cat might be bad. Need to really go through it and look for leaks i guess. But theres no bad leaks I could see.

 

[ChristmasXJ]

O ya there a nice a gas leak. Its coming from under the manifold near the intake. great. awesome sweet!