20 Most Recent 2003 GMC Sierra 2500HD - Page 9 Questions & Answers

POSSIBLE 4WD CONTROL MODULE. MODULE MAY HAVE TO BE PROGRAMED

Take the truck to a mechanic or auto parts store and have the com[puter scanned for trouble codes. There is no way to tell what is causing the problem without the codes.

GOOD MORN SNOWED 18 INCHES ENGAGED FOUR WHEEL DRIVE IN BOTH HIGH AND LOW, FRONT LEFT WHEEL NOT PULLING RIGHT FRONT DID PULL. RODE AROUND FOR A WHILE. WHILE PARKING THE TRUCK IN MY DRIVEWAY THE FRONT RIGHT STOPPED PULLING IM STUCK IN SNOW NOW. TEN MINUTES BEFORE RIGHT WHEEL STOPPED PULLING THE DFROSTER BLOWER MOTOR STOPPED BLOWING ANY IDEAS

you must have bent or disconnected shift linkage and the saftey switch is engaged

if you don,t have a manual you may find alot of free manuals at autozone.com good luck James

The way the clutch switch works not to be to simplistic is the vehicle will not crank unless you have the clutch pushed in. It may be that you need to replace the switch its not hard or expensive to do. You may also be able to adjust it The neutral safty switch is feed from the clutch switch thats the master control because if the vehicle is not running you realy woun't need the neutral safety switch. You have a 2003 this switch should last longer then that the clutch switch. So look up under the dash at the top of the clutch pedal you will see a switch attached to the top fof the pedal and it will have a plastic threaded rod with a adjustment nut to control when the switch is triped to the on pisition adjust this nut so that the switch is compressed sooner and activates the switch with less travel distance before it gets to the floor. You still may need a new switch it depends but its inexpensive and easy to replace and will likely correct this problem

Hi, you could use 75 weight synthetic fluid, and if you have limited slip, there will be a label in your glove box, with option codes stating G80. If you do not have G80, then you do not have limited slip. Thanks...Coop

you will need a power steering pulley puller to first pull off the pulley

Sounds like it needs to be maintained ( oil change, tuneup,filters ) This can be a desiel and injectors fail and they lose power. Is the check engine light on? If it is look into the reasons the light is on or has come on. Many auto prts stores will look and the check engine light codes with a code reader for free. Don't nessarily but the parts the codes point out unless you know it's time to change these parts anyway.

what are you wanting to know?? the door is panel is still held on with clips, if your wandering why it still wont come off... start from the bottom corner of the door and work your way around. you will know when all of the clips are pulled lose, then just lift the panel up off of the door.

From gas pedal through a grommet on drivers side firewall then through a support on the top of engine and attached to the throttle linkage of your fuel system.

Fallow fuel line It'll be the first can looking like connected to it.

First, are you check the fuses? Next, check wire connections and any loss wire or ground.

Take it to a shop that knows how to repair your truck. You cant download, tools and experience.

Need to have scanned to pull the codes and see what is setting. computer goes into reduced power when it detects a fault. one of the most likley cuases will be the throttle body or electric connector to it. if you have someone pull the codes i can assist you further

this code are similar to engine misfire, chek the fuel system and pressure, air intake ratio, (injectors, fuel pump, maf, iac, vacuum hose, intake manifold), you mustcheck all this.

Trace your fuel lines from the gas tank along the inside of your frame rail. It should be located about 2 or 3 feet from the tank.

Check the Part Replacement HERE

Hope helps.

Hello and welcome. you will need to see your local dealer. there is a software update for the seat heater control module. this software updat has to be done with a GM tech 2 scan tool and a sps programming station