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4.3L GM CPI, Special Tools Needed?
Posted to Technical Discussion Forum on 6/25/1998 15 Replies

Looking for some answers to diagnosis of this CPI system. According to AllData special tools are required to diagnose the poppet valves. I know that Jim Wilson, for sure, has had many failures with this system.

I had a 95 Astro in two days ago. The plugs on ... Login to read more.

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