Question about 2002 Cadillac Escalade

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02 escalade, vehical stalls at low idle

Usually turning into parking spot. Volt meter drops from 14v-12v, then stalls.
Also notice slowing down for stop light, as soon as I applied on brakes the volt meter drops from 14v-12v and sometimes stall.

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  • Henry KAo Mar 06, 2009

    I'll try that thanks, I was thinking the alternator, because when I drive for the a short time like going to the gas station and have to suddenly step on the brakes the idle starts to be unusual and stalls, and I notice the volt meter drops suddenly. I day going to home depot turning into drive way and it had a bend in the road slight incline, just in the middle of the bend the truck stalls.

  • mccain128 Mar 11, 2009

    I have the same problem when in my neighborhood and turning the corner slowly, it stalls and the turns off. The voltage level drops too. It's very aggravating. I was told to get a tune up and that should do it.

  • Daddy Pete Aug 21, 2012

    I tried everything that Edgar suggested and more. My Escalade Ext still does the same. I also cleaned mass air sensor. Any other ideas?

  • luvredroses7 Sep 11, 2015

    Map sensor is the problem, good luck!

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If it has over 40,000 miles on it change the drive belt and have the alternator tested and also make sure all of the vaccum lines are on and in place

Posted on Mar 06, 2009

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Shuts off when a/c,lights & radio are on like the alternater is bad but no engine code & batt & alt test fine


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With a bad alternator at idle, it will probably drop below 13.5v with just the lights, and below 12v with everything else.

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