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 2:47 PM
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DOCFIXIT
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Ignition timing controlled by PCM not adjustable
Oct 6, 2011 at 3:25 PM
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PYRO404
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Thank you for the speedy reply.
Oct 6, 2011 at 3:27 PM
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JACOBANDNICKOLAS
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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 7, 2011 at 3:20 AM
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