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5.7 tune up

Tiny
CHEVY11974
  • MEMBER
  • 1996 GMC YUKON
  • V8
  • 4WD
  • AUTOMATIC
Did a tune up on my 96 gmc yukon 5.7 had 120,000 miles on it. Put new wires plugs rotor cap and button pcv valve air filter and when cold starts right up after that takes probably 5 to 10 sec to start when running at idle and sitting still in drive it jumps like a miss and vehicle shakes please help because it makes no since thanks
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Thursday, January 13th, 2011 AT 1:19 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,300 POSTS
Chances are you bumpped a vacuum hose off when you were working on it. Double check for vacuum leaks. Also, make sure when you routed the plug wires that none are arcing. I've seen new wires (poorly made) that were no good out of the box. Also, make sure none of the wires are laying on the exhause manifold where they could melt and short.
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Tuesday, January 18th, 2011 AT 6:48 PM

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