Question about 2000 Cadillac Catera

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Car keeps shutting off

I have a 2000 cadillac catera 110000 miles.
the check engine light came on like 2 months ago.the codes were for the oxygen sensors. i changed all four of them but the light came back on after about 2 weeks. then the mechanic checked the codes again and determined i needed a new catalytic converter. i changed both converters,left and right side but a few days before the converter was changed,the car eould just shut off after about 15 minutes of it wasn't just while idling,it was actually while the car was in motion. it would start back after letting the car sit for about an hour.during the 15 minutes of drive time though,it would run just stalling or jerking.

i changed the converters,same thing. changed the fuel filter, relay fuel pump and it still goes off after 15 minutes. i am beginning to lose faith in the mechanic i use because these parts cost a lot and so far it seems like they keep making me spend money i may not need to be spending.

altogether, repairs done so far are all 4 oxygen sensors,both catalytic converters, an entirel new fuel system save for the fuel tank but the car still shuts off.

check engine light is off now though but if the car only runs for 15 mniutes max,maybe it just hasn't had enough time to trigger of the codes. i am frustrated.

so far i have spent close to $4000 in repairs but the car is still not fixed.
anybody,somebody please help!!!!!!

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  • shupor Jul 10, 2008

    i will have them look at it tomorrow. i will keep you posted.

    oh,and to answer your question,it is a v6.

  • shupor Jul 24, 2008

    finally solved the problem.

    it turns out it was the catlytic converter sensor. it only costs about 48 bucks when purchased from the dealers and you can get it online for about 30 bucks at other sites.

    the sad part though is i had to take it to the dealers to diagnose and it cost about $600 to put a $48 part in.

    F.Y.I If you experience similar problems like i did and your mechanic thinks its fuel delivery related,have them loosen the injector a bit while the engine is running.if a little bit of gas spurts out while this is done,then there is probably nothing wrong with your fuel delivery system.

    do not attempt to do this yourself though.



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  • 43 Answers

Has anyone told you it might be the coil i think you have more than one on this car.i know you have spent a lot of money usually coils are the problem at least try this a v6?let me know.

Posted on Jul 10, 2008


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