Search results

I do think I need to replace the spider. I have run a can of Seafoam through fuel tank and got a little better and then ran a can of B12 Chemtool through fuel tank and the CEL will go off when not in city driving but as soon as I am back to stop and go driving, CEL back on and rough idle again...

I don't think the o-ring is twisted and they are still the original poppet injectors. I am running a can of Seafoam with this tank of gas and the negative fuel trims have gotten considerably better but still have a rough idle???? And the SES light even went out for a short time but is now back...

Just took out the new coolant temp sensor and checked resistance on it and the old one and they both seem to be working so I am not sure that is the problem. How do I do a compression test? do I need any expensive tools? Not sure what it could be at all, maybe it's something mechanical with...

Just replaced cap, rotor, plugs and wires and fuel pressure was 54-55 at idle.

Thank you

Still no relief Well I put new fuel pressure regulator in and I still have the P0300 code and rough idle. Anyone have any other ideas?

I joined about 2 weeks ago and I think I have been booted already? Why can't I find any of my posts?

I took the upper intake manifold off yesterday and I am guessing the fuel pressure regulator is the cause of all my problems. The lower intake was bright shiny aluminum under the regulator and I assume it must have been leaking fuel. Will replace today once the local auto parts store opens...

What do you mean by a thorough TBI clean?

Idles the same regardless of the heater or AC being on. WOnder why Chevy putt he FPR under the intake plenum? Grrr I will attempt that this weekend, weather permitting. Should I but a new gasket set as well? Kinda always strapped for cash and don't want to spend unnecessary $ if i don't...

New to forum and I need some help with my 1999 Tahoe. it has 5.7L v8 and a few weeks ago it started to idle poorly and had a smell of gasoline while in drive when sitting a red light. Then it started to miss badly and I barely made it home. I just bought this in February and I found out that...