1991 GMC Sonoma tracing a short, using multimeter?

  • 1 POST
  • 1991 GMC SONOMA
  • 2.2L
  • 4 CYL
  • FWD
  • 167,000 MILES

Thank you, my girlfriend has a 91 mercury sable. She said having trouble starting then drained the battery. I bought a new battery, put a new voltage regulator on and cut and put a neg, battery post connector on, and the mechanical key switch, still nothing. So we decided to call someone out lol, he put a starter in still nothing. He said there was a short to the ground somewhere to my girlfriend, I was working. He quoted a outrages amount. Being a little nice. So that was the end of him.I bought a multimeter and guna learn properly how to use this. Where should I start? What do you call the harness behind the key ignition switch? And why can't I find a place that has the whole neg. Cable from the starter to the battery? Auto stores only have the posts thank you my name is josh

Do you
have the same problem?
Friday, June 13th, 2014 AT 11:42 AM

1 Reply

  • 49,692 POSTS

Check the purple wire coming out of ht eneutral safety switch and see if it's getting power to the starter. It shold go to the "s" terminal on starter solenoid. Also check and see if there are fusible links on starter if one is burnt up it's usually the starter one and are available at autoparts. Also check the crank fuse in truck I think it is. I've included a pic of where the fusible links are.

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Friday, June 13th, 2014 AT 12:49 PM

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