Car shuts off while driving

ALLYNDA

MEMBER
1996 BUICK RIVIERA
6 CYL
FWD
AUTOMATIC

Car stalls while driving, it will start to shudder before shutting off sometimes if I press the gas when I feel the shudder coming on it will keep going. Usually will start back up within 15 minutes but, there has been times where it won't start. If I keep it moving at about 80mph it doesn't die. I have taken it in but the diagnostics only shows the symptons not the cause. Something is shutting it off but don't know what. Recently put in a new computer, fuel pump, fuel regualtor and igintion modular. This did help but it still shuts off.

Wednesday, May 18th, 2011 AT 5:28 PM

1 Reply

JDL

MECHANIC
16,098 POSTS

You need to find out what your missing, when the problem occurs. When the problem occurs, if it cranks good but won't start, have a helper crank it, while you check for spark at the spark plugs. If you have spark everywhere, use a gage and check fuel pressure. Any applicable codes? How long since overall tune-up? You have to do a little testing, you know, give us a direction. Stalling could be caused by just about anything? I'd start by checking spark and fuel, go from there.

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Wednesday, May 18th, 2011 AT 5:37 PM