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1997 Chevy Monte Carlo low speed engine shut down

Tiny
PFLAIR
  • MEMBER
  • 1997 CHEVROLET MONTE CARLO
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 110,000 MILES
At low speeds and idle the engine will die, it will restart immediately and idle or run for a while, then the engine will do it again. The fuel filter, plugs and wires have been changed. I also cleaned out the m.A.F.S. And the intake manifold. I regained some performance from the plug and wire change, but it will still die at low speeds. It runs great at highway speeds, and it does not idle rough. This is the 3.4 DOHC engine.
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Wednesday, January 20th, 2010 AT 8:03 PM

2 Replies

Tiny
SCOTTY DEE
  • MECHANIC
  • 592 POSTS
Check throttle position sensor and related wiring.
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Tuesday, January 26th, 2010 AT 7:34 PM
Tiny
PFLAIR
  • MEMBER
  • 2 POSTS
Scotty Z, I replaced the throttle position sensor and checked wiring. Seems better but will still vary at idle from 1100 and will drop to 600 a few times then stay at 900. I just replaced the fuel pump. That helped a lot.
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Tuesday, February 2nd, 2010 AT 9:07 PM

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