Question about 2003 Chevrolet Tahoe

2 Answers

Battery keeps going dead after a few days. Replaced battery, replaced alternator. Red battery light stays on in dash at night after vehicle is shut off and locked. Next morning, battery is dead. After replacing battery and alternator, Tahoe doesn't want to idle smoothly or at proper rpm range. Idle keeps shifting up & down, and when ever you stop at a red light, engine dies if you don't keep your foot on accelerator.Also, keeps blowing fuse for door locks.

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  • Chevrolet Master
  • 1,140 Answers

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

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: battery keeps dying due to radio+clock staying on

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

  • 67 Answers

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

Molson02536
  • 3854 Answers

SOURCE: will crank up and will not idle, cuts off. had fuel pump replaced

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

juncro
  • 467 Answers

SOURCE: security system light goes on, fue blows for power door, trunk

have the system check by a locksmith

Posted on Jul 29, 2009

  • 4044 Answers

SOURCE: 94 chevy k1500 5.7L engine won't run properly.

It could and most likely is a faulty Fuel pump.

Posted on Sep 12, 2009

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