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Tahoe electrical issues


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Posted

I got a 2003 tahoe to pull my f150 with and it was cheap so I didn't look too closely at all the issues before I got it.

The two small speakers (or whatever they are) in the headliner (one above the driver and the other near the center in the back) have a feedback noise coming thru them when the engine is running and it sounds like it winds down slowly after I take the keys out. Almost like a small compressor is running and they are playing the sound. BTW it has an aftermarket radio in it now with onstar integration and it still makes the same noise.

Also the rear AC only blows cold for some reason, it was hot the day I got it and i checked to make sure the AC worked but since it has been cold I turned on the Heat and it still blows out ice cold air only.

Anyone with an idea of what could cause these problems please let me know, I don't want to spend hundreds of dollars tracking down an electrical issue at the dealership unless I have to.

2003 Ford F-150 Reg Cab layin body on 26's

2003 Tahoe 3/5 drop on 26's with a 408cid Supercharged engine.

2011 Camaro 2SS 2005 VW GTI Stage II ECU, CAI, 3" turbo back exhaust, FMIC, lowered 2" on some plastidipped 18's

2003 Hayabusa lowered, stretched, cams, nitrous and custom paint

Posted

the one above your drivers side is your mic/speaker for onstar ,if onstar isnt connected all you have to do is just pry your

headliner back and unplug it

154k03o.png

01 Tahoe

Big 3

20 ft.1/0 streetwire under hood

4 Batteries

Stock Battery and

1800 Kinetic Batt under hood

2 Sprinter S12V500F Battery,165 AH

Kicker 1/0 going from front to back

Sirius sportster

Alpine 9886

Kicker 650.4zx mids and highs

Q-Logic kick panels w/Kicker6 1/2 comps.

XXX re comp 6.5 in front doors

Alpine6.5 coax in rear doors

2 Audioque 2200d strapped

2 Audioque 18 HDC3

5% all the way around

2 layers raamat on roof

doors covered in raamat

Posted

the onstar still works and I would like to keep it for resale purposes.

Just wanted to know if anyone had ever heard of this or had a clue where to start looking. I kinda think that the previous owner left the sunroof open a little and some water may have gotten under the headliner cause none of the map lights work either, just the dome lights that come on when you open the door.

Pulling the headliner is going to be a pain just to find out that there is something messed up elsewhere that is causing the problems.

2003 Ford F-150 Reg Cab layin body on 26's

2003 Tahoe 3/5 drop on 26's with a 408cid Supercharged engine.

2011 Camaro 2SS 2005 VW GTI Stage II ECU, CAI, 3" turbo back exhaust, FMIC, lowered 2" on some plastidipped 18's

2003 Hayabusa lowered, stretched, cams, nitrous and custom paint

Posted
the one above your drivers side is your mic/speaker for onstar ,if onstar isnt connected all you have to do is just pry your

headliner back and unplug it

that what we did on my build didnt we J.P. !!! are u tryn to control the rear temp. from the front or rear controls ? u could have a bad overhead controller....

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153.3 @ Turkey Drag 2009

Spl Modified 1001-2000 - Derrick Jones my alias... Wudn't accept DEEz NUTz !!!

Posted

also this may sound stupid but make sure all three a/c controls are turned to the heater,the front one under your headunit,the one directly above you and the one in the back

154k03o.png

01 Tahoe

Big 3

20 ft.1/0 streetwire under hood

4 Batteries

Stock Battery and

1800 Kinetic Batt under hood

2 Sprinter S12V500F Battery,165 AH

Kicker 1/0 going from front to back

Sirius sportster

Alpine 9886

Kicker 650.4zx mids and highs

Q-Logic kick panels w/Kicker6 1/2 comps.

XXX re comp 6.5 in front doors

Alpine6.5 coax in rear doors

2 Audioque 2200d strapped

2 Audioque 18 HDC3

5% all the way around

2 layers raamat on roof

doors covered in raamat

Posted

I've tried the front and rear controls for the rear heat, it has a sunroof so the rear controls are in the back of the console. I'm figure that I'm not the only one that has had these problems.

Thanks for the quick responses. I would like to keep the onstar if possible but if it is going to cost a bunch to fix what ever it is then I will just unplug the speakers like you suggested.

2003 Ford F-150 Reg Cab layin body on 26's

2003 Tahoe 3/5 drop on 26's with a 408cid Supercharged engine.

2011 Camaro 2SS 2005 VW GTI Stage II ECU, CAI, 3" turbo back exhaust, FMIC, lowered 2" on some plastidipped 18's

2003 Hayabusa lowered, stretched, cams, nitrous and custom paint

Posted
I've tried the front and rear controls for the rear heat, it has a sunroof so the rear controls are in the back of the console. I'm figure that I'm not the only one that has had these problems.

Thanks for the quick responses. I would like to keep the onstar if possible but if it is going to cost a bunch to fix what ever it is then I will just unplug the speakers like you suggested.

sully if ur not using the onstar then unplg it temp. it may take u a hour to drop ur liner and put back but it will be worth it rather that riding round blasting the radio to drown out that buzzing !!!! I know i did it !!! LMAO....

Powerbassbanner.jpg

DCbanner.jpg

groundpounders-sig-1.jpg

153.3 @ Turkey Drag 2009

Spl Modified 1001-2000 - Derrick Jones my alias... Wudn't accept DEEz NUTz !!!

Posted

So you had the same buzzing noise from the onstar? it drives me nuts, I've got a small system in the Hoe just to have something to listen to but I don't like to jam on it all the time just to cover up that noise.

2003 Ford F-150 Reg Cab layin body on 26's

2003 Tahoe 3/5 drop on 26's with a 408cid Supercharged engine.

2011 Camaro 2SS 2005 VW GTI Stage II ECU, CAI, 3" turbo back exhaust, FMIC, lowered 2" on some plastidipped 18's

2003 Hayabusa lowered, stretched, cams, nitrous and custom paint

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