Question about Cadillac DeVille

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Starts but will not keep running

Starts up every time and dies out

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This is due to the antitheft system losing communication and turning off the fuel injectors.

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Posted on Mar 31, 2014

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Posted on Jan 02, 2017

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Truck runs fine then dies while driving then will start back up and run ok.


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1 Answer

93 toyota pickup 4x4 it will stay running after I turn it on to start it up, it starts up then after a few seconds it kills


if I'm reading this right...
... the engine starts and dies within a few seconds.
... you jumpered the fuel pump test connector and it will keep running.
... you smell fuel after trying to re-start when it dies.

Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.

Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.it will keep running.

... you smell fuel after trying to re-start when it dies.


Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.


Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.

Mar 30, 2013 | Cars & Trucks

1 Answer

My 1999 Pontiac Montana starts fine, and then sometimes dies


The starting /keep running issue is probably a slow IAC (idle air control)Next time turn the key on,wait 3 or 4 seconds then start,if it keeps running after that wait time everytime,it most likely is the IAC,,,,,,no big deal.
How long does the van sit when it has a dead battery?

May 13, 2017 | 1999 Pontiac Montana

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2001 S-10 with the 4.3 Vortec engine keeps dieing


Most likely the battery and possibly the alternator are bad.

Sep 23, 2009 | 2001 Chevrolet S-10

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95 buick lesabre dies all the time


Sounds like a vacuum leak. Check to see that all the little vacuum hoses (and one big one to the brake booster) are attached and not cracked. Hope that works.

Sep 11, 2009 | 1995 Buick LeSabre

1 Answer

Car dies immediately after starting


SOUNDS LIKE IDLE AIR CONTROL VALVE,YOU WILL PROBALBLY NEED A COMPUTER ILDE RELEAN FLASH,IT RESETS VALVE OR IF THAT DOESN'T FIX POSSIBLY AN AIR FLOW METER AND A ECM UPDATE,HOPEFULLY YOU KNOW A TECH DEALER GOOD LUCK

May 17, 2009 | 2005 Infiniti G35

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1979 Firebird Esprit hard to start and keep running, dies in gear


it sounds like timing to me if it dies when you put it in gear.it can idle fine but when you put it in gear and it dies then you have timing problems

Jan 13, 2009 | 1979 Pontiac Firebird

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