2000 Other Chevrolet Models Quiting at idle

2000 CHEVROLET
140,000 MILES • 4 CYL • 2WD • AUTOMATIC
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AKNUCKLES
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This Chevy Tracker runs great until you stop and let it ilde like at a red light or stop sign. It will quit and not restart for about 5 minutes. It may idle for 30 minutes but when it stops it will not start.

There are no computer codes. Fuel pressure and voltages are all normal. We have changed the fuel pump and filters. We have checked spark during the down time and it is normal. This is driving my mechanic nuts. Can you help us.

I have heard of other trackers doing this but I have not been able to find a verified fix.


Alan Knuckles
Oct 5, 2008 at 9:16 AM
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2CARPRO JACK
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Try cleaning the Idle Air Control Motor. Also clean out around the butterfly in the throttle bore with carb cleaner and a rag. This should help stabilize the idle.Might be an Idle speed motor that it sticking, they dont always set a code
Oct 6, 2008 at 1:03 AM
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AKNUCKLES
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During some testing yesterday we found that when the engine shuts down the timing goes crazy. It retards irratically. There still is not a computer code.
Oct 7, 2008 at 12:19 AM
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2CARPRO JACK
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That could be many things.. cam sensor,crank sensor,ecm..... Anything in failure records/ freeze frame? So it is losing injector pulse?
Oct 7, 2008 at 12:38 AM
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AKNUCKLES
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We still have not found the problem. My mechanic is trying to find the crank sensor. Could it be located inside the bell housing? There seems to be no obvious sensor visible in the normal places.

Still looking!
Alan Knuckles
Oct 29, 2008 at 1:11 PM
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2CARPRO JACK
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What engine is it?
Oct 30, 2008 at 2:34 AM
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