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Showing results for tags 'tuneup'.
We bought a 2000 Chevy 2500 with 189k miles and with the 6.0l and need to get tuned up. I'm trying to decide if I need to replace the plug wires they Packard's which may be the factory original wires. Are Packard wires the original wires (see pic for reference)? I don't have a SES light, but need to scan it for codes.