Thread: Ignition timing jump when checking timing with light.
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Old 11-17-2011, 07:35 AM   #24
MT-2500
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Re: Ignition timing jump when checking timing with light.
Quote:
Originally Posted by Wags391 View Post
So I checked and tested the distributor in every which way I could find. The dist is a reman from NAPA. I also tested the ignition coil. Couldn't find a problem. Everything tested to spec. The cap and rotor were installed with the engine. Couldn't say if they are ACDelco or not. The engine was installed a couple months ago by a shop in SC.
I would go for another dist from a different brand or batch and use a AC delco cap and rotor.

If no problem found with another dist go for a PCM swap.
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