Will a bad idle control motor cause the car to stall when warm

1990 CADILLAC SEVILLE
125,347 MILES
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VICTOR BENNETT2
  • MEMBER
  • 1 POST
My car listed above with a 4.5L, stalls out when driving or idling when the temperature reaches 149 degrees. Fires right back up, but as soon as you give it gas in gear, it stalls out.
Mar 7, 2020 at 9:53 AM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good afternoon.

Yes, it will. The base idle should allow to idle at 500 RPM's but if the throttle body is dirty, it will stall.

I attached some information about replacing it and setting it up for proper operation. It was a very common failure back in the day. We used to rebuild them.

Roy
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Mar 7, 2020 at 1:05 PM
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