Check the timing & compression. ck for spark, fuel injection & spark plugs.
SOURCE: truck starts, dies. truck runs good some days,bad the next
I had the same problem with My 1990 F150 300 6cylinder 4x4.....I cahnged all the same things you did, finally I sprayed a can of Gumout through the throttle body and it worked and ran great. Now I add fuel injector cleaner to the gas and a regular clean with the gumout and the problem has'nt come back. Good Luck to you and hope it works!
SOURCE: 1996 Galant runs rough until gas pedal pressed
You should have your TPS and EGR looked at as those cause rough idles...Other causes are bad idle air control valve, bad plugs, bad distributor cap & rotor, a bad wire, bad O2 sensor, etc...
Testimonial: "Thank you for your time. We have replaced the plugs,wires,rotor,cap and distributor.If TPS,EGR,o2 bad,wouldnt engine light come on?"
SOURCE: starts but dies as soon as i let off the gas wont
replace the gas filter just follow the gas line of the carb it should be easy to find
SOURCE: 2005 ford focus died restart push the gas pedal
replace relay in engine compartment fuse box.
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