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Re: Tune Up Tips Needed
Do searches on this and other Grand Prix sites and use the terms dogbones or rocking the engine and you should find all the info you need.
You should always get more than one opinion anyway.
Or you can just do what I previously said.
I have the GM manual on my Grand Prix and I looked in it tonight and it just says to remove and replace the sparkplugs. No mention of moving the engine.
I was skeptical at first too.
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