SOURCE: 2007 gmc sierra 2500 IAT sensor
Well, the IAT (Intake Air Temperature) sensor is located on the air intake duct between the filter and the throttle body (Assuming you have the 6L motor). The wires are easily visible at the plug that connects the sensor to the wiring harness. That's the easiest place to access them.
SOURCE: how to adjust parking brake on a GMC Sierra 2500
The adjuster is just like on a car with drum brakes. It can be adjusted with the wheels still on the truck, but if yours is out enough that it doesn't work, an inspection is warranted. Axle seal failure is common and will soak the shoes.
Jacked both rear wheels off ground, and while slowly spinning wheel, tighten the star-wheel adjuster until you just hear and feel brake drums rubbing, then loosened slightly.
There's a plastic dust cover about 1/4" X 1" that you remove, and use a drum brake adjuster tool.
The driverside access hole is below axle, easily accessable. To tighten driver side rear parking brake, turn star-wheel adjuster down.
The passengerside access hole is found above axle, and difficult to see. Removed pass side wheel and used an inspection mirror.
To tighten passenger side rear parking brake, turn star-wheel adjuster up.
Good luck and hope this helps. Oh and the other thing to is that if you do smell axle fluid around the wheels and see oil leaking from the drum area. Then you have a axle wheel seal and or bearing gone bad too.
SOURCE: 2003 gmc sierra duramax 2500
Problem with Diesel Fuel System. Gmc 2002 duramax 2500 HD 4x4 will start
SOURCE: i need to be walked
Here have information about #791 bypass module: Bulldogsecurity Model791
IF YOUR REMOTE STARTER IS CLICKING AND/OR
FLASHING THE PARKING LIGHTS AND IS NOT RESPONDING TO THE REMOTE, IT IS
IN SAFE MODE AND NEEDS TO BE INITIALIZED BY DOING THE FOLLOWING:
If you have a 4 button remote, you must ground the black/blue
hood pin
wire (raise hood if hood switch is installed). Apply 12volts to
blue/black brake wire (press and hold brake pedal if wire is installed).
Press and hold any button on your remote until clicking and flashing
stops. Unit will now respond to the remote. Remove ground from hood
pin wire and voltage from brake wire.
If you have a 2 button remote, hold brake and press any button on the
remote until clicking and flashing stops.
ADDENDUM
If
you have an RS1100 or RS1200 and
your vehicle runs for several seconds, shuts
off, restarts, runs, and shuts off again, perform
the following step:
Connect the Black/White tach wire (from the 16 pin plug) to the heavy
gauge White Ignition 1 wire and program the unit for Tach Mode (bottom
of page 19).
Witch model alarm have your vehicle?
Good luck.
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SOURCE: how do you reset a
Check engine light will go out when the management computer detects no more errors. Pull the codes and repair what they indicate.
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