Timing

1992 CHEVROLET SILVERADO
198 MILES • V8 • 2WD • AUTOMATIC
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1992CHEVY
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  • 3 POSTS
My 1992 Silverado has a timing problem. I hooked up my timing gun and set it to the right setting but at different RPM's it'll ping for a second and then lose power after the pinging stops. My dad thinks its the "advanced timing" but cant find what controls the advanced timing.
Thanks.
Jan 24, 2011 at 2:39 PM
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RASMATAZ
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Did you disconnect the EST wire when checking the ignition timing
Sep 8, 2020 at 5:20 AM
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1992CHEVY
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  • 3 POSTS
no, i dont believe i did. am i supposed to disconnect the EST wire before checking the ignition timing?
thanks.
Sep 8, 2020 at 5:20 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
You suppose to disconnect the EST wire-then you set the ignition timing-shut off plug the wire back-clear it-
Sep 8, 2020 at 5:20 AM
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1992CHEVY
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well, that was the problem, i didnt disconnect the EST wire before i set the timing.
i did as you said and it ran better. i didnt know when you disconnect the EST wire the timing would be different, now i do.
thanks for the help.
Sep 8, 2020 at 5:20 AM
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