1999 Cadillac Concours tune up

Tiny
TSINKER
  • MEMBER
  • 1999 CADILLAC DEVILLE CONCOURS
  • V8
  • 2WD
  • AUTOMATIC
  • 135,251 MILES
How do I check timing after tune up new plugs and wire in place, Seem like I have a small miss at idle
Wednesday, April 14th, 2010 AT 10:19 AM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
Timing is a thing of the past, all computer controlled now. Most misfires of any magnitude will turn the check engine light on, otherwise you would need a scan tool to read data see what the fuel trim values are doing, for an indication of a problem.
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Wednesday, April 14th, 2010 AT 10:22 PM

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