1997 GMC Jimmy ignition switch

1997 GMC JIMMY
103,000 MILES • 6 CYL • 4WD • AUTOMATIC
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TRACY AYOTTE
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  • 1 POST
When you first start the vechicle it may not start on the first try. The dash lights will not always come on when you try to start the car. If they don't, you can usually turn the switch off and try again. If the dash lights come on, then you know that the car will start. Then sometimes when waiting at a light, or slowing down to turn or come to a stop, it will just turn off. No spitting and sputtering, just turn off. My husband replaced the alternator, thinking that may be the problem, but we still have the same problem. We are thinking that it is in the ignition switch. What is your thought?
May 31, 2008 at 8:03 AM
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DEAN1964
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  • 2 POSTS
Hi, we are having the exact same problem with ours. we believe it to be the switch as well. I,m replacing it this week and will let you know how we make out
Jun 14, 2008 at 2:02 PM
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DEAN1964
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I talked to an old friend of my dad who was a mechanic his whole life. He told me to spray the key slot with wd 40. its been working fine for a week now.....go figure
Jun 23, 2008 at 8:37 PM
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SWILLIAMS
  • CERTIFIED EXPERT
  • 597 POSTS
Sounds like a faulty ignition switch. Not a hard item to replace.

I'm surprised that WD40 did anything since the key cylinder isn't part of the actual switch. The actual switch is below it attached to the switch module.
Jul 16, 2008 at 10:41 PM