1999 Chevy Express 1999 Chevy Express Van Engine Problem

1999 CHEVROLET EXPRESS
281,000 MILES • V8 • 2WD • AUTOMATIC
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FRANKYC
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  • 5 POSTS
I thought it was the distributor cap but it looks like something else.
It will crank up and run great for a while and then it will go crazy, the speedometer goes nuts, the anti-lock brake light comes on, and it will run in lunges and then seems like it has died but if I take it out of drive into neutral it's still running and runs Ok, put it back into drive it lunges for a while and repeats the same deal. Seems like the gear shifting affects the problem. If you put it in 1st gear , it seems to still change gears and will lunge so bad that the drive shaft sounds like it's coming apart. A mechanic locally put in a speed sensor in the transmission, ran Ok for a while and then started the same problem again.

There isn't an engine service light or code at all.

What could cause this?
Aug 5, 2008 at 12:51 PM
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JOHN68
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  • 1 POST
[quote:cf9c4159c1="frankyc"]Engine Performance problem
1999 Chevy Express V8 Two Wheel Drive Automatic 164000 miles
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I thought it was the distributor cap but it looks like something else.
It will crank up and run great for a while and then it will go crazy, the speedometer goes nuts, the anti-lock brake light comes on, and it will run in lunges and then seems like it has died but if I take it out of drive into neutral it's still running and runs Ok, put it back into drive it lunges for a while and repeats the same deal. Seems like the gear shifting affects the problem. If you put it in 1st gear , it seems to still change gears and will lunge so bad that the drive shaft sounds like it's coming apart. A mechanic locally put in a speed sensor in the transmission, ran Ok for a while and then started the same problem again.

There isn't an engine service light or code at all.

What could cause this?[/quote:cf9c4159c1]
Oct 26, 2009 at 6:14 PM