Axial seal 4 times still leaks
Not enough detail for what end the leak is at. Front sounds strange for a pickup unless 4 wheel drive and then if the style is open shaft behind the brake rotor this would require dissemble of a few more things. If from the rear,which is the common repair, this is from a worn axle bearing on the axle shaft,which causes wear to the rear axle seal either located on the shaft before the bearing to the outside. Or the second option can be a axle seal located in the end of the axle housing. when you remove the axle shaft you would be looking at the end of the housing tube and see this seal. On older models ( My younger days ) they would also install one on the inner side of the housing next to the Gear Unit in the center of housing, ( also known as the PIG Unit ).need further info....
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: 2003 sierra rear brake rotors
there is many kind of brake system of ur truck here i will send u everything about the brake and i hope its help
Rear Brakes JC3
Rotor Discard Thickness*
18.50 mm/0.728 in
Rotor Minimum Allowable Thickness After Refinish
19.0 mm/0.748 in
Rotor Thickness (new)
20.0 mm/0.787 in
Rotor Maximum Allowable Lateral Runout
0.05 mm/0.002 in
Rotor Maximum Allowable Scoring
1.50 mm/0.059 in
Rotor Maximum Allowable Thickness Variation
0.025 mm/0.001 in
Rear Brakes JC4
Rotor Discard Thickness*
28.50 mm/1.122 in
Rotor Minimum Allowable Thickness After Refinish
29.0 mm/1.142 in
Rotor Thickness (new)
30.0 mm/1.181 in
Rotor Maximum Allowable Lateral Runout
0.05 mm/0.002 in
Rotor Maximum Allowable Scoring1
.50 mm/0.059 in
Rotor Maximum Allowable Thickness Variation
0.025 mm/0.001 in
Rear Brakes JH2
Rotor Discard Thickness*
28.50 mm/1.122 in
Rotor Minimum Allowable Thickness After Refinish
29.0 mm/1.142 in
Rotor Thickness (new)
30.0 mm/1.181 in
Rotor Maximum Allowable Lateral Runout
0.05 mm/0.002 in
Rotor Maximum Allowable Scoring
1.50 mm/0.059 in
Rotor Maximum Allowable Thickness Variation
0.025 mm/0.001 in
Rear Brakes JH6
Rotor Discard Thickness*
27.50 mm/1.082 in
Rotor Minimum Allowable Thickness After Refinish
28.0 mm/1.102 in
Rotor Thickness (new)
29.0 mm/1.141 in
Rotor Maximum Allowable Lateral Runout
0.05 mm/0.002 in
Rotor Maximum Allowable Scoring
1.50 mm/0.059 in
Rotor Maximum Allowable Thickness Variation
0.025 mm/0.001 in
Rear Brakes JH7
Rotor Discard Thickness*
28.5 mm/1.122 in
Rotor Minimum Allowable Thickness After Refinish
29.0 mm/1.142 in
Rotor Thickness (new)
30.0 mm/1.181 in
Rotor Maximum Allowable Lateral Runout
0.05 mm/0.002 in
Rotor Maximum Allowable Scoring
1.50 mm/0.059 in
Rotor Maximum Allowable Thickness Variation
0.025 mm/0.001 in
* All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this Specification. After refinishing the rotor, replace any rotor that does not meet the minimum or discard thickness specifications.
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: how to replace starter 2002 GMC Sierra 2500
Enjoy this...jack up truck, remove tire, remove plastic cowling and expose front right wheel well.you may want to wash this side of engine at this point. Remove battery cables, remove the 13 mm nut and 8mm nuts on the solenoid. take a 15mm socket and remove the upper aand lower holding bolts. Use an extra long extension for the lower bolt. Ratchet out in front of the A-arm. Dislocate the starter from the fly wheel side of starter. wiggle,jiggle and point the starter gear at a 45 down and PULL starter out and down.
SOURCE: 2005 GMC 4x4 HD 2500 6.0 eng. rear axel seal
SEAL COULD BE LEAKING CAUSE YOU DIDNT LUBRICATE THE SEAL LIPS WITH PETROLEUM JELLY TO HELP THE THE SEAL LIP SEAL OR YOU DAMAGE THE SEAL WHILE DRIVING IT IN.AXLE FLANGE NUTS TORQUE IS 58 FT LBS THE AXLE HUB NUT TORQUE IS 177 FT LBS.
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