What is the engine timing on a 1999 Transport?

1999 PONTIAC TRANSPORT
200,000 MILES
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PYRO404
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I'm getting ready to tune-up the van, have my plugs and wires and now I just need to know the timing.
Oct 6, 2011 at 7:47 AM
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DOCFIXIT
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  • 18,828 POSTS
Ignition timing controlled by PCM not adjustable
Oct 6, 2011 at 8:25 AM
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PYRO404
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Thank you for the speedy reply.
Oct 6, 2011 at 8:27 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 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.
Oct 6, 2011 at 8:20 PM
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