I HAVE A 91 GMC C3500 WITH A 454 IT'S A 5.7 ENGINE AND ITS RUNNING LIKE CRAPE WHEN I TRY TO DRIVE IT IT WHANTS TO STALL OUT
I HAVE A 91 GMC C3500 WITH A 454 IT'S A 5.7 ENGINE AND ITS
RUNNING LIKE CRAPE WHEN I TRY TO DRIVE IT IT WHANTS TO
STALL OUT THE IDEL GO'S UP AND DOWN SOME TIMES WHEN I
COME TO A STOP IT CUTS OFF I UNPLUG THE TEMP SWITCH AND IT
RUNS BETTER BUT AT HIGH IDEL STUFF I DID SO FAR BUT NO LUCK
I DID A FULL TUNE UP AND THE FUEL PUMP I CHANGED THE TEMP
SWITCH SPARK PLUGS AND ROTA AND CAP AND SPARK PLUG
WIRES PCV VALE OIL OIL FILTER AND I REBUILD THE FULL
THROTTLE BODY I CHECKED THE TPS SENSER AND STILL NO LUCK
does it have codes??it must...
YEA CODE 15- coolant sensor or circuit/ low temp indicated I JUST INSTALLED THAT SENSOR LAST WEEK NEW FOR AUTO ZONE BUT IT STILL DOING THE SAME THING THE IDOL NORMAL THEN DROPS DOWN LOW AND GO'S BACK UP WHEN I STOP A THE LIGHT SOMETIMES IT CUT'S OFF OUT OF NO WHERE AND IT STARTS RIGHT BACK UP
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