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post #5 of (permalink) Old 11-13-2002, 10:45 AM Thread Starter
1977CJ7
 
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Re: Strange detonation problem

Distributor and timing chain are new, vac advance works properly. My idle mixture is a tad rich, I don't know about carbon in the cylinders. Egr is not hooked up...could this be the problem???

I dont downshift when this occurs, I just give it more gas and the pinging goes away.
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