1991 Chevy Lumina

1991 CHEVROLET LUMINA
164,000 MILES • 6 CYL • FWD • AUTOMATIC
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SSF
  • MEMBER
  • 1 POST
The car starts right up and runs fine on the highway.
When slowing down right before I stop it lunges forward and is hard to stop. Once I stop and put into park it wants to shut off. I put a throttle position system, a MAP system, EGR valve, sprayed 2 cans of carburator cleaner & 1 can of intake cleaner to clean the intake. When I initially put the MAP system in it ran perfect temporarily then started acting the same way again.
Thanks for any assistance you can provide.
Oct 17, 2009 at 5:58 PM
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BMRFIXIT
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 19,053 POSTS
Check for codes
suspect lock up torque converter solenoid
Oct 17, 2009 at 8:20 PM
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DOUG RODRIGUES
  • MEMBER
  • 11 POSTS
Could be a leaking brake booster. Are you having problems with the engine dying during stops? Does the engine seem to run rough or start missing as you hold the brake pedal down? Does that condition clear up if you take your foot off the brake pedal?
Oct 18, 2009 at 11:11 AM
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