WHAT IS THE ENGINE TIMING ON A 1999 TRANSPORT?

  • Tiny
  • pyro404
  • 1999 Pontiac Transport
  • 200,000 miles

I'm getting ready to tune-up the van, have my plugs and wires and now I just need to know the timing.

Thursday, October 6th, 2011 AT 2:47 PM

3 Answers

  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

Ignition timing controlled by PCM not adjustable

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Thursday, October 6th, 2011 AT 3:25 PM
  • Tiny
  • pyro404
  • Member

Thank you for the speedy reply.

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Thursday, October 6th, 2011 AT 3:27 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

That is correct, it isn't adjustable. However, if the timing chain has never been replaced, you may want to check it with that many miles.

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Friday, October 7th, 2011 AT 3:20 AM

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