1988 Chevy Silverado rough idleing

15,100 MILES • V8 • 4WD • AUTOMATIC
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ABPUMPREPAIR
  • MEMBER
  • 1 POST
I just purchased this truck.. it had been sitting for a long time. it has a 350 with TBI .. it idles really rough but once you start going it smooths out. I have replace the cap/rotor/plugs and plug wires.. I have dumped a few cans of injector cleaner in the tank thinking the injectors might be a bit colgged but to no evail.... also it has to turn over several times before it actually starts... is this an injector problem??
Oct 17, 2008 at 3:33 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check the fuel pressure -fuel pump could be failing/coolant temperature and throttle position sensors-idle air control valve/MAF sensor
Oct 17, 2008 at 11:22 PM
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