Question about 2003 Chevrolet Tahoe

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My 2003 chevy tahoe keeps cutiing off randomly. the battery is fine. i diconnected the battery while running to test the alternator, and my truck kept running. i have plenty of fuel, and my brakes and

My 2003 chevy tahoe keeps cutiing off randomly. the battery is fine. i diconnected the battery while running to test the alternator, and my truck kept running. i have plenty of fuel, and my brakes and tires are ok as well. HELP!!!

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Some of the 03 Tahoe's have an issue with the Crankshaft position sensor that causes it to stall or not crank at all. Have someone check the Crankshaft position sensor.

Posted on Apr 15, 2009

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Before replacing alternator testing should be done , is there B+ voltage at the heavier gage wire on the back of the alternator . Could have a blown fuse or fusible link . Your vehicle from what you have posted , isn't charging . Plus there is a regular fuse located in the under hood fuse box F1.13 - 10 amp this supply's B+ voltage to the orange with lit blue stripe wire at the three wire connector plugged into the alternator . The other two wires come from the PCM - engine computer . This charging system is computer controlled . Ford PCM controlled alternator testing

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What does it mean when the battery light comes on for my 2001 chevy Tahoe?


Usally it means that the alternator is not charging.Check the voltage coming out of the alternator with the engine running.It should be 13-14.7 volts and if its less than 13 volts or more than 15volts then replace the alternator.If alternator test good then check battery voltage you need at least 12 volts.

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Remove alternator chevy tahoe 2003. Need to remove alternator on chevy 2003 tahoe so it can be tested. Found the two bolts that fix alternator to the mounting, but after removing them, it won't budge. ...


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03 z71 tahoe wiggs out when u hit a bump abs light brake light service brake system in dash comes on also reduced engine power comes on it shuts of but starts back on its on and door locks cycle but runs...


I have had the EXACT same problem with my 03 Chevy Tahoe!!! I have yet to find out the solution!? I cleaned all my grounds and changed my rear speed sensor along with bench tested my alternator! Have you found the problem? I would be very grateful if you could hit me back with an answer!! Thanks

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My 2003 chevy tahoe, died while i was driving home. when i tried to start it, nothing happens. it doesnt try to crank or turn over, nothing happens, now my ABS and battery light is on.


OK if only 4 months old, charge it with an external battery charger. Once vehicle is running the quick and still most valid test I make is:
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