Question about 2012 GMC Yukon SLE 4dr SUV 5.3L V8 FFV 6-speed Automatic

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Yukon battery drainHave a 2012 Yukon SLE, twice now in the last three months the vehicle won't start after running into the convenience store. Won't jump start on the battery side of the mega fuse, have to be on the engine side post to jump. Had the system checked...showed 880 cca out of 680, and the alternator showed 15.02v at 2K RPM's. Any ideas from anyone would be much appreciated!

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Have the batter load tested as there may be a faulty bridge inside the battery. Never jump start from any point other that the battery post positive with the negative cable attached to the engine If you continue to jump the way you described then sooner or later you will cause a power surge which will fry the CPU.. Check all cables are shiny clean and tight all the way from the battery posts to the starter.

Posted on Feb 10, 2014

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Posted on Jan 02, 2017

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SOURCE: Needing to know why my Yukon's gauges stopped working.

You need to replace cluster, 99-02 Silverado GMC all will work even if it has a trans temp truck is pre wired for it. I put a 02 Denali cluster in my 01 silverado no problems. GM can reprogram hours and odometer if you want.

Posted on Mar 10, 2010

tayjoejoe
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SOURCE: My 2005 Yukon denali won't

My guess would be the anti theft security system. When this system starts to fail, it turns off the starter from the ignition. The fact that you can hard start it proves this. Read this link for symptoms, info, pictures, and solutions to this problem. http://vatspasslockpasskeysecurityhelp.yolasite.com/

Posted on Jun 12, 2011

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Hi there !

I won't say its an alternator problem because the alternator only charges the battery when its on, And it should start with the jump cables even if the battery and the alternator are bad. your Issue is not clear. Does the car start when you jump it ?

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Needing to know why my Yukon's gauges stopped working.


You need to replace cluster, 99-02 Silverado GMC all will work even if it has a trans temp truck is pre wired for it. I put a 02 Denali cluster in my 01 silverado no problems. GM can reprogram hours and odometer if you want.

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The location of the 02 sensoron 1999 gmc yukon sle


1999 GMC Truck Yukon 4WD 5.7L SFI 8cyl
The Oxygen Sensor is located under vehicle, passenger side, below seating area, rear of catalytic converter, mounted in driver side exhaust pipe.

Application: With dual catalytic converter
Number two

Hope helped (remember rated this help) Good luck.

Dec 09, 2009 | 1999 GMC Yukon

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