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We have a 94 Chevy Suburban. For at least the past two ...

Sent to Car Experts October 03, 2006 2:04 p.m.

We have a 94 Chevy Suburban. For at least the past two months it has spuratically stalled on us while driving. There are no signs that something is wrong, it just stalls. My husband has changed the fuel pump and the fuel filter and the spark plugs. He drove it to work today and as he was going up a hill it stalled on him again. We took it to a mechanic to examine it on the diagnostic test and he hooked it up for six hours and came to a conclusion that they said there was nothing wrong with it. A couple of the times that it stalled, he pushed it home with our other vehicle, and some of the times he jerked it and by the time we got it home and put it in park it started back up. Immediately after it stalls it acts like it wants to turn over but won't. It is a 1500 8 cylinder. It does this on an average every two weeks. Could you please help us try to figure out why this problem may be occurring?

Optional Information:
1994 Chevrolet Suburban 8.0

Already Tried:
We have changed the plugs, the fuel filter, and the fuel pump

Customer (name blocked for privacy)

Status: Closed Value: $10

Answer
October 03, 2006 2:09 p.m. (4 minutes and 44 seconds later)

REPLIED

It's most likely the 7 pin ignition module in the distributor, but what you need to do is have a combustible spray with you when it dies so you can see whether it's fuel related or spark related. When it dies and won't restart, you'll need to immediately pop the air cleaner lid off and spray some carb or brake cleaner spray in the throttle body and try starting it...if it starts and runs for a few seconds then it's fuel related...if it doesn't it's spark related and go ahead and replace the module.

You can most likely just let it run at home until it dies without going out on the road.

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Sparkybuoy -- Auto Mechanic -- 93% Positive Feedback on 193 Car Accepts
20 years experience

Reply to Sparkybuoy
Sent October 03, 2006 2:15 p.m. (5 minutes and 31 seconds later)

We have already tried spraying that stuff and trying to get it to start and it doesn't help

Customer (name blocked for privacy)

Answer
October 03, 2006 2:22 p.m. (7 minutes and 44 seconds later)

REPLIED

if it starts and runs for a few seconds then it's fuel related...if it doesn't it's spark related and go ahead and replace the module.

You can most likely just let it run at home until it dies without going out on the road.

__________________
Please click on ACCEPT if I've helped...it's how we get paid for our time answering questions-THANKS-you can still write back after you ACCEPT.

Sparkybuoy -- Auto Mechanic -- 93% Positive Feedback on 193 Car Accepts
20 years experience

Reply to Sparkybuoy
Sent October 03, 2006 2:25 p.m. (2 minutes and 51 seconds later)

So do you mean that this module is inside the distributor and that if it is a bad module that it would make our vehicle just stall whenever?

Customer (name blocked for privacy)

Answer
October 03, 2006 2:26 p.m. (44 seconds later)

ACCEPTED

Affirmative.

__________________
Please click on ACCEPT if I've helped...it's how we get paid for our time answering questions-THANKS-you can still write back after you ACCEPT.

Sparkybuoy -- Auto Mechanic -- 93% Positive Feedback on 193 Car Accepts
20 years experience

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