I have a 93 GMC 1500 5.7 liter with. The motor is a 93 body is a 95. My truck will not run with the timing advanced plug hooked up can someone please help me with this issue. What is the main reason for it to not run with it hooked up.
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Two possibilities:I have a 93 GMC 1500 5.7 liter... ...My truck will not run with the timing advanced plug hooked up can someone please help me with this issue. What is the main reason for it to not run with it hooked up.