Rough running while in gear
Hi John.. I have read the past with
dragonfly at the top here.. I'm experiencing
these same problems as him. . But I don't
have. Or can find this gm inline fuel
pressure tester. .I can however tell you that
when I cleaned out the throttle body it ran
smooth and i could Rev it up with no rough
idle or bog..i stop spraying and it bogs
stalls or back fires out the throttle
body.flames as well .. I have done the other
checks you discussed. Changed rotor cap
plugs wires . vacumn line. cleaned egr
valve haven't done the pcv valve.. Going to
change the fuel filter today. . My question is
about the idle smooth while spraying ..
1989 gmc vandura 2500 v8 305
Sounds like an overly lean (not enough fuel) condition. Check for vacuum leaks, faulty fuel injectors, or bad fuel pressure regulator. HTH. -Jim
I changed fuel filter today it runs at idle fine now but in gear it feel like it misfire or something just not right still and back fires. . Checked the fuel injectors. They are spraying dome like spray each side
Thanks Jim.. How will i know if the regulator is faulty
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