2001 Chevy Caprice car stops in eratically

Tiny
VMANDARTI
  • MEMBER
  • 2001 CHEVROLET CAPRICE
  • V8
  • 2WD
  • AUTOMATIC
  • 250,000 MILES
Hi,
caprice 2001 . Problem is it stops while 1)waiting in signal 2)going slow speed with out foot on accerator pad 3)sometime even at speed of 60. It never happened in high speed. Maximum time in waiting in signal or going slow in turn after lifting leg from accelarator pad. Did computer for engine. No alarm. They said difficult to find out. On doubt changed fuel pump. No use. Electronic module near spark plug. No use. Changed spark plg. No use.
any thing to next?In speed it stops and starts quickly in fraction of second.I can feel and see red alarm lights for a while. In Signal or slow speed it stops and I have to use ignition switch to restart. It starts suddenly. What iam asking is in speed at 60 if auto car stops how engines starts by itself? If electric loose connection I think engine should not start again. But it stops, give jerk and starts in a fraction of second without delay at same speed. Or mechanicaly anything to change? Is there anything like car computer program reloading?Is it helps?If my leg is on accelarator normaly if engine stops it suddenly starts. But in signal it stops completly and have to use ignition key. Anything to do with car computer?
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Thursday, February 26th, 2009 AT 11:25 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi:
at high speeds, the engine will continue turning from the motion of the car. Almost like a standard. At low speeds it won't. The problem with this type of problem, you can't tell what it is without a code. As a result, you keep trying different things that cost money and don't fix the problem.

If I was there, I would most likely start with checking the crank sensor. From there, I would move to cam sensor.
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Friday, March 6th, 2009 AT 6:40 PM

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