Question about 2003 Chevrolet Tahoe
Take out the fuse for the door locks. Then see if the battery still goes dead. If it does not go dead, then you know the electrical circuit that has the short. You could just leave the fuse out, not have power door locks but at least the battery would not go dead. Let me know if this works out for you.
Posted on Jul 03, 2015
Diagnose the door lock issues first,that you know is a problem
Why would you replace the alternator ?
Posted on Oct 27, 2012
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Posted on Jan 02, 2017
you have a parasitic load(the device will stay on when car is off drains battery), take the negaitve battery cable off when you turn the car off will fix the problem temporarily, you have to take it into a qualified electrical mechanic and he can fix it for you.
Posted on Dec 15, 2008
SOURCE: 2003 Impala - mystery problem???
you have something thats staying on with power when you shut the car off,first check all lights glove apartment,underhood,in trunk ,just because ther closed doesnt mean the light is off,check your car at night it might help to see the lights,if not another way is to take a multi meter to the battery and while some holds the meter pull out fuses in your fus box one at a time to see when the meter makes a change,this will help you to narrow down whats staying on and draining the power from the battery,if this helps please give me a fix ya vote
Posted on Jul 14, 2008
There are to many things that can cause your blazer from idling.
Go to Auto Zone or Parts Source and they can scan your blazers computer. There should be a DTC code which should make you understand why your having the problem.
I believe they both scan for free and may have the parts you need to replace and give you the how to do it your self instruction for the repair:
Good luck and hope this helps, here are some codes that control ther idle speed of your engine. It's the air idle control valve that may have gone bad or it just may be a dirty or stuck EGR valve. The scan should let you know.
P1505 Idle Air Control At Adaptive Clip
P1506 Idle Air Control System Over speed Error
P1507 Idle Air Control System Under speed Error
P1508 Idle Air Control (IAC) System - Low RPM
Posted on May 05, 2009
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