1991 Cadillac Seville Starts then shuts off imediately.

TAVERNARIJARED

MEMBER
1991 CADILLAC SEVILLE
V8
FWD
AUTOMATIC
146,000 MILES

Was running fine minus the fact that a cadylic converter needs to be installed. So it was shaky but still ran. Now I am going to have the converter and 2 new o2 sensors installed but the car starts and then imediately shuts off. I am not sure what is causing this issue as it started fine the other day. I also added fuel additive cleaner and carburator cleaner. I am not sure what the issue is but it needs to be fixed so that I can get the cadylic converter installed.

5 Replies

JUNIORRICHARDSON

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36 POSTS

TRY SRAYING WITH STARTING FLUID WHILE IT'S RUNNING IF IT CONTINUE TO RUN WITH THE STARTING FLUID THE FUEL PUMP IS IN NEED OF REPLACEMENT

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Tuesday, August 18th, 2009 AT 2:23 PM

TAVERNARIJARED

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3 POSTS

What should I spray with starting fluid?

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Tuesday, August 18th, 2009 AT 4:18 PM

JUNIORRICHARDSON

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36 POSTS

Take the cover off the top of the throttle body and sray little burst at a time(every seconds-

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Tuesday, August 18th, 2009 AT 7:39 PM

TAVERNARIJARED

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3 POSTS

My car starts thats not the problem. It just shuts off right after. Either an oxygen problem or a fuel problem.

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Tuesday, August 18th, 2009 AT 7:48 PM

JUNIORRICHARDSON

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36 POSTS

I know it starts, I also know it cuts right off thats why I wont you to sray inside the throttle body before you start it then have someone to keep spraying it while it's running for about three to four seconds and stop spraying to see if it keeps running. If it runs the whole time you are spraying it and cuts off when you stop spraying it this means it not getting enough fuel and the fuel pump is bad. Let me know the outcome.I'AM HERE TO HELP