20 Most Recent 2007 GMC Sierra 1500 Questions & Answers

I think a wire was either disconnected and not put back together or a wire was pinched.

2007 GMC Sierra... | Answered on Jan 03, 2018

I would suspect the ignition starter switch.

2007 GMC Sierra... | Answered on Aug 25, 2017

Year make and model are essential information. But it could be a fusible link if it's an older vehicle. Near the battery there should be wires that have a big molded rubber part inline on the wire. See if you can take a test light and poke through the insulation on the far side of the wire and see if there is one where the light does not light up. They sell them at auto parts stores. If it is a newer vehicle it could be a bad main power relay, or a bad body computer. And that's nearly impossible for me to help with online

2007 GMC Sierra... | Answered on Jun 12, 2017

No code is on the drivers display. ??????? Check engine light on ? Need to take an have a scan tool hooked up to read codes .

2007 GMC Sierra... | Answered on Jun 06, 2017

What I looked at was 5.3l, non-hybrid

2007 GMC Sierra... | Answered on Dec 04, 2016

if you have a hydraulic clutch ( no transmission offered) check the slave cylinder for leaks ( some cars use the brake master cylinder as a reservoir for the hydraulic clutch)
check the brake booster to master cylinder mounting for leaks or the rear seal of the master cylinder may be faulty allowing fluid to pass to the booster chamber
check for a leak under pressure at the rear flexible rubber hose from the body on

2007 GMC Sierra... | Answered on Apr 05, 2016

Do attempt to do any repairs take it to your dealer, If it deploys it will do major damage. and will not be covered by insurance .

2007 GMC Sierra... | Answered on Mar 04, 2016

could be. most fuse boxes have a chart of what fuses control what on the back side of the cover. try that.

2007 GMC Sierra... | Answered on Jan 09, 2016

What circuit is the amp wired to or is it on its own circuit ?

2007 GMC Sierra... | Answered on Jul 06, 2015

2007 GMC Sierra 1500 fuel pump relay Bing Videos


2007 GMC Sierra... | Answered on May 19, 2015

Check fuses, I think they now have seperate fuses. I know I ran into this before on something else.

2007 GMC Sierra... | Answered on Apr 20, 2015

Door Lock System Components
The power door lock system consists of the following components:
The driver door switch (DDS)

The passenger door switch (PDS)

The body control module (BCM)

The driver information center (DIC)

The rear door lock/unlock relay (LBEC)

The door lock actuators in each of the doors The rear passenger doors are controlled by the BCM through the rear door lock/unlock relay which is incorporated onto the printed circuit board in the LH BEC. The BCM controls the unlock relay by providing ground to energize the coil and controls the lock relay by providing battery voltage to energize the relay coil. The energized the relay and allows voltage to be applied to either the door lock motor lock or unlock circuits. Since the other side of the door lock actuator is connected to the normally closed contacts of the opposing relay to ground, the doors lock or unlock.
Do you know what the BCM is , body control module ! If you do not know about this stuff I strongly suggest you to it to a ASE certified repair facility ! Save yourself some money an aggravation !

2007 GMC Sierra... | Answered on Apr 17, 2015

can be anything suspension or steering related

start inspection at the swaybar endlinks and maybe the struts go from there

if you don't want to crawl underneath, goto local tire alignment shops and some may inspect it for free as a courtesy

2007 GMC Sierra... | Answered on Mar 23, 2015

Good listening...always a sign that something is different...In this case, can be suspension related...ball joint, tie rod, wheel bearing, or badly out of alignment...A free suspension check-up is your safe response...how many miles?

2007 GMC Sierra... | Answered on Mar 23, 2015

Sounds as if the transfer case control module has gone bad and grounded the circuit to the 4 low actuator. The module is located behind the headlight switch in the dash. You could try tapping the actuator on the transfer case lightly with a hammer to see if it releases.

2007 GMC Sierra... | Answered on Feb 23, 2015

Hi, Here's another source of troubleshooting information:
Cut and paste that into your web browser, if clicking on the link doesn't get you there. This gentleman located his problem by confirming the Start Relay in the Fuse Box under the hood was working (clicking, this confirms the PCM is good also) when he turned the ignition key to start his truck. He observed slight sparking and arcing between the Starter Solenoid and the Starter connections and determined them to be corroded and the source of the trouble, resulting in the intermittent starting conditions happening. Once again, Good Luck.

2007 GMC Sierra... | Answered on Feb 21, 2015

Hi Jim
You have to connect the negative to the vehicle body, and the positive to the reverse light wire.
this way the camera will comes ON when you put the selector in reverse.
Good Luck

2007 GMC Sierra... | Answered on Feb 13, 2015

Not finding what you are looking for?
2007 GMC Sierra 1500 Logo

374 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

Top GMC Experts


Level 3 Expert

85206 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Sierra 1500 GMC

  • Sierra 1500 GMC

Most Popular Question

2007 sierra loss brake fluid no visible

  • Cars & Trucks