Parking Brake Issues

[yukonSLT1016]

just recently brought a 03 gmc yukon slt , parking brake did not work - all cables were rotted & parking shoes were missing . installed 4 new cables,parking brake shoes, rotors, brake pads & a new parking brake lever assembly . my problem is vehicle is passing inspoection due to parking brake is not holding . was thinking i didnt adjust parking brake shoes properly but with rear wheels off the floor parking brake holds. with vehicle on the floor it doesnt . was told there is a adjustment at the lever - does anyone know the procedure of adjusting the parking brake at the lever ? or does someone have any suggestions on what i should double check . parking brake only holds when lever is just about on the floor .

 

[TollKeeper]

There is an adjuster sleave, but I cant remember if its below the drivers seat, or at the rear axle. Its where the 2 rear cables go into a union, to a single cable. Theres usually a threaded bolt on the end of one of those cables, with a nut.

 

[swathdiver]

just recently brought a 03 gmc yukon slt , parking brake did not work - all cables were rotted & parking shoes were missing . installed 4 new cables,parking brake shoes, rotors, brake pads & a new parking brake lever assembly . my problem is vehicle is passing inspoection due to parking brake is not holding . was thinking i didnt adjust parking brake shoes properly but with rear wheels off the floor parking brake holds. with vehicle on the floor it doesnt . was told there is a adjustment at the lever - does anyone know the procedure of adjusting the parking brake at the lever ? or does someone have any suggestions on what i should double check . parking brake only holds when lever is just about on the floor .

The shoes are to be set at .25mm of clearance from the drum in hat rotor. The adjuster is to be disabled before work is performed on the rear and then engaged afterwards which sets the pedal. I'm not in a position to post photos but they are on this forum.

 

[OR VietVet]

Welcome to the forum from Oregon.

Check you tube videos about the adjustment process. That is mainly what you will find at the other threads here on the forum or still pics by @swathdiver and others.

 

[yukonSLT1016]

There is an adjuster sleave, but I cant remember if its below the drivers seat, or at the rear axle. Its where the 2 rear cables go into a union, to a single cable. Theres usually a threaded bolt on the end of one of those cables, with a nut.

the intermittent parking brake cable no longer comes with a adjusting nut on it ,

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving suggestions from the knowledgeable folks on this Forum.

 

[yukonSLT1016]

still having issues with passing inspection due to parking brake , if someone can post pictures of how the cables are routed right before they attach to the parking brake shoes that would be appreciated? shoes are adjusted appropriately cause when rear is off the floor i cant turn the wheels with the parking brake on . tried looking on youtube on how to adjust foot lever but cant find much . there is no adjustment nut on the intermittent cable anymore . can someone please tell me is there supposed to be any clicking noise when applying the parking brake on these trucks?

 

[swathdiver]

still having issues with passing inspection due to parking brake , if someone can post pictures of how the cables are routed right before they attach to the parking brake shoes that would be appreciated? shoes are adjusted appropriately cause when rear is off the floor i cant turn the wheels with the parking brake on . tried looking on youtube on how to adjust foot lever but cant find much . there is no adjustment nut on the intermittent cable anymore . can someone please tell me is there supposed to be any clicking noise when applying the parking brake on these trucks?

Mine makes noise when applied.

 

[TollKeeper]

shoes are adjusted appropriately cause when rear is off the floor i cant turn the wheels with the parking brake on

The proper way to -check- if they are adjusted, apply the parking brake fully, with the truck on the ground, and put in drive, and reverse. If the truck moves, then its no good.

 

[Ulises Jimenez]

I replaced my rotors shoes and pads and I thought I had adjusted them and the parking brake held for about a week then went loose again. Adjusted it worked for a couple of days then lost the hold again. If I pump the E brake while holding the release sometimes it'll hold and sometimes it won't help at all. Anyone with any tips?

 

[Doubeleive]

adjust the shoes tighter, I ended up just having the dealer do it because it is a PITA to take everything apart over and over. waste of time for me

 

[Rocket Man]

still having issues with passing inspection due to parking brake , if someone can post pictures of how the cables are routed right before they attach to the parking brake shoes that would be appreciated? shoes are adjusted appropriately cause when rear is off the floor i cant turn the wheels with the parking brake on . tried looking on youtube on how to adjust foot lever but cant find much . there is no adjustment nut on the intermittent cable anymore . can someone please tell me is there supposed to be any clicking noise when applying the parking brake on these trucks?

Just because you can’t turn the wheels when they’re off the floor doesn’t mean they’re adjusted right. The truck trying to move can apply WAY more force than you can with your hands. Adjust them until they barely make contact with the drum/ rotor.

 

[OR VietVet]

Sounds to me like the park brake shoes are not adjusted right. Explain how you adjusted them please.

 

[Fless]

The shoes are to be set at .25mm of clearance from the drum in hat rotor. The adjuster is to be disabled before work is performed on the rear and then engaged afterwards which sets the pedal. I'm not in a position to post photos but they are on this forum.

Reviving a stale thread since I'm in the process of cable replacement and parking brake adjustment on my '04.

The Haynes manual specs a 0.026" clearance between the parking brake shoe and the drum (in the hat rotor). 0.25mm would be 0.0098" (or, rounded, 0.010").

 

[swathdiver]

Reviving a stale thread since I'm in the process of cable replacement and parking brake adjustment on my '04.

The Haynes manual specs a 0.026" clearance between the parking brake shoe and the drum (in the hat rotor). 0.25mm would be 0.0098" (or, rounded, 0.010").

Go by Haynes and not my brain!

 

[Fless]

Go by Haynes and not my brain!

Having no good way to measure the gap, I'll tighten them up until they drag, then back them off a bit. When I had them replaced I think they didn't adjust them tight enough; told me the cables were stretched and that's true, but it's not the whole story.

 

[OR VietVet]

See my build thread post today about my park brake cable problems and pics of result. I like to use my park brake and so I am replacing all cables with new. Adjustment is also very important for proper usage and results. On my 05 the AC Delco numbers for front is 18P2907, center is 18P2113 for the threaded design, left rear is 18P96948 and right rear is 18P96947.

 

[Fless]

See my build thread post today about my park brake cable problems and pics of result. I like to use my park brake and so I am replacing all cables with new. Adjustment is also very important for proper usage and results. On my 05 the AC Delco numbers for front is 18P2907, center is 18P2113 for the threaded design, left rear is 18P96948 and right rear is 18P96947.

I saw that, thanks; my front two cables are the same as yours, but the rear cables have a different connection at the lever that goes through the backing plate, so the cable ends are different.

 

[Rocket Man]

Having no good way to measure the gap, I'll tighten them up until they drag, then back them off a bit. When I had them replaced I think they didn't adjust them tight enough; told me the cables were stretched and that's true, but it's not the whole story.

I bought the tool. Used it once. But hey it worked, and my parking brakes now work for the first time ever.

 

[JGM70]

The shoes are to be set at .25mm of clearance from the drum in hat rotor. The adjuster is to be disabled before work is performed on the rear and then engaged afterwards which sets the pedal. I'm not in a position to post photos but they are on this forum.

Did all the work but never disconnected the cables. Had my mechanic replace the cables and have to ask if he did it the way you are saying. Lousy design. Getting older and did
not want to pull everything apart again. And the screw adjustment on the cable has been
changed.