Spark Plug Wires installed incorrectly?

1999 GMC JIMMY
250,000 MILES • 4.3L • V6 • 4WD • AUTOMATIC
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GERRI LYNN LESTER
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  • 1 POST
Somehow messed up when replacing plug wires, terrible miss and knocks. The cap has numbers, but I need a diagram to see what is run to wrong place.
Oct 13, 2024 at 1:53 PM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Sure here is the engine firing order and spark plug numbers, just match them up and you should be good to go.

Firing Order .................... 1-6-5-4-3-2

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Oct 13, 2024 at 5:22 PM
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