Question about 2008 GMC Sierra 1500

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2007 GMC Sierra 1500 Texas edition 1500.Problem comes and goes. Lf door radio speaker dead No ding with emer brack on. No ding manual door locks Hard to hear turn sig. Click

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: GMC truck exhaust diagram

GUESSED AND IT WORKED!

Posted on Jul 31, 2008

  • 12 Answers

SOURCE: removal of power steering pump on 1998 GMC Sierra 1500

you need a power steering pump puller the rest is simple any trouble let me know

Posted on Dec 24, 2008

  • 6 Answers

SOURCE: 2000 gmc sierra 1500 5.3 v8. a/c heater control problem

your heat/cool and vent selection options are controlled by engine vacuum through small clear tubes attached to the rear of your climate control interface. Other vehicles have small steel pull wires that operate the desired changes. You might try removing the trim and any fasteners affiliated with the interface/console. GENTLY pull outward and look to see if any of these tubes are pulled off or cut/damaged. Did anyone recently install a new stereo in the vehicle? If so, the vacuum tubing and or pull wires that change your outlets could have been damaged when the stereo unit was pushed into place. Hope this helps

Posted on Sep 09, 2009

Testimonial: "Very good information. THANKS!"

  • 172 Answers

SOURCE: 2005 GMC Sierra 1500 - heater blows, but only cold air

Check coolant level. Check for heat at the heater hose going from water pump to heater core at firewall. Check to see that cable is moving coolant control valve from the closed to open position. Low mileage so it shouldn't be plugged heater core.

Posted on Jan 07, 2010

Testimonial: "You were absolutely correct. Low coolant level. Put in some 50/50 and we're nice and toasty now, but need to find out why coolant was so low. Thanks."

  • 432 Answers

SOURCE: 1990 GMC Sierra 1500 pickup. Windshield wipers, Cruise Control

May want to look at replacing the wiper circuit board.It is located on the firewall adjacent to the wiper motor and has a some what square black cover with 3 torx screws and wireing harness pluged into the side.We had a truck that every time you washed it the wipers would stay on until it dryed out.You can try removing it and spaying it down with contact cleaner just watch the brease on the two contact tips.Well hope this helps.

Posted on Feb 05, 2010

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1 Answer

My 2007 GMC Sierra only plays sound out of the drivers door speaker. It has the Bose sound system. If the amp was bad would it still play out of a single speaker?


Did you try testing the speaker (not working) with an alternate music source?

If the speaker works, have you checked for continuity of the wiring?

Jul 16, 2014 | 2008 GMC Sierra 1500 Denali

1 Answer

2007 gmc sierra radio


try a new speaker on one of the speakers if it works replace all of them. often they will go out one by one until you notice when the last one goes out you have no radio

Oct 24, 2013 | Cars & Trucks

1 Answer

No sounds coming speakers


see if the speakers are not blown,,, been there done that.. door chimes work through drivers side door...

Oct 24, 2013 | GMC Cars & Trucks

1 Answer

Door speaker wiring diagram for 2002 sierra


2002 GMC Sierra C1500 Car Radio Wire Color Codes
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Amplifier Location: Under the center console.
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Dec 20, 2012 | 2002 GMC Sierra 1500

1 Answer

2011 GMS Sierra 1500 Sound / speakers / blinker


on all modern gm vehicles , the blinker noise and dining noise goes through the left frt speaker so if you speakers arent workin thats your problem call a dealer with your vin

Oct 24, 2012 | 2011 GMC Sierra 1500

1 Answer

The front door speakers are not working, but from time to time they come on for a brief moment. also, the door chime only works if the front door speakers are working. weirdest thing i've ever seen....


The door chime is played over the speaker. I had the same issue the speaker was junk. The circuit resistance was correct but no tunes. Replaced the speaker with one from the junk yard and sounds great all the time.

May 08, 2011 | 2007 GMC Sierra 2500HD

1 Answer

I have a 07 GMC Seiarra Classic. The radio has some lights that come on or go off intermittently and the sound comes of and on on some of the speakers. I dont think it is a problem with the speakers...


I have the same problem. Seems when it is dry outside, the radio works pretty good but when the humidity is up, speakers dont work and sounds like treble in the other speakers.
I am to the point as to put a aftermaket radio in the truck.

Mar 22, 2010 | 2007 GMC Sierra 1500

1 Answer

2007 GMC Sierra lost the radio and chime when the battery went dead?


check the fuses the chime comes from the radio and through the speaker, sometimes they have an electrical seizures when the batt goes low and you try to start

Nov 04, 2009 | 2007 GMC Sierra 1500

2 Answers

Factory radio wiring color codes


Here ya go. enjoy!
2002 GMC Sierra C1500 Car Radio Wire Color Codes
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: Under the center console.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

May 14, 2009 | 2002 GMC Sierra 1500

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