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My e-brake is not holding. Compared to other JKs where the e-brake will start to engage after 1-2" of pull, mine doesn't get any resistance until 3-4" of being pulled up and even then ends up almost vertical with no holding power.

Are these easy to adjust? / where is the adjustment mechanism? I've never adjusted one, but I'm sure it's not that hard.

Thanks.
 

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i thought i read somewhere it "auto" adjust and there is no way to adjust it yourself. I hope this isnt the case because my E-brake is like yours. I have to pull way up to keep myself from rolling on any kind of hill
 

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From the service manual:
Parking brake adjustment is controlled by a cable tensioner mechanism. The cable tensioner, once adjusted at the factory, should not need further adjustment under normal circumstances. Adjustment may be required if a new tensioner, or cables are installed, or disconnected.
If its still under warranty, try taking it into the dealer for adjustment. I couldn't find any info on how to actually adjust the parking/e-brake, but from the quote above it apparently can be done.
 

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I had to have mine adjusted too. I let the dealer do it. I believe they had to pull the center console up to get at it and did something under there. I don't know what it looks like under there but it shouldn't be too hard to figure out once it's visable.
 

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The FSM details two ways to adjust parking brake, one with the rotors removed and one with them in place. Here's the instructions for the method with the rotors in place:
Adjustment can be made with a standard brake gauge or with adjusting tool. Adjustment is performed with the complete brake assembly installed on the backing plate.

1. Be sure parking brake lever is fully released.

2. Raise vehicle so rear wheels can be rotated freely.

3. Remove plug from each access hole in brake support plates.

4. Loosen parking brake cable adjustment nut until there is slack in front cable.

5. Insert adjusting tool through support plate access hole and engage tool in teeth of adjusting screw star wheel .

6. Rotate adjuster screw star wheel (move tool handle upward) until slight drag can be felt when wheel is rotated.

7. Push and hold adjuster lever away from star wheel with thin screwdriver.

8. Back off adjuster screw star wheel until brake drag is eliminated.

9. Repeat adjustment at opposite wheel. Be sure adjustment is equal at both wheels.

10. Install support plate access hole plugs.

11. Adjust parking brake cable and lower vehicle.

12. Depress park brake lever and make sure park brakes hold the vehicle stationary.

13. Release park brake lever.
 

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Here's how to do it with rotors removed:
Under normal circumstances, the only time adjustment is required is when the shoes are replaced, removed for access to other parts, or when one or both rotors are replaced.

Adjustment can be made with a standard brake gauge or with adjusting tool. Adjustment is performed with the complete brake assembly installed on the backing plate.

CAUTION: Before adjusting the park brake shoes be sure that the park brake pedal is in the fully released position. If park brake pedal is not in the fully released position, the park brake shoes can not be accurately adjusted.

1. Raise vehicle.

2. Remove tire and wheel.

3. Remove disc brake caliper from caliper adapter.

4. Remove rotor from the axleshaft.

NOTE: When measuring the brake drum diameter, the diameter should be measured in the center of the area in which the park brake shoes contact the surface of the brake drum.

5. Using Brake Shoe Gauge, Special Tool C-3919, or equivalent, accurately

6. Using a ruler that reads in 64th of an inch, accurately read the measurement of the inside diameter of the park brake drum from the special tool.

measure the inside diameter of the park brake drum portion of the rotor. 7. Reduce the inside diameter measurement of the brake drum that was taken using Special Tool C-3919 by 1/64 of an inch. Reset Gauge, Brake Shoe, Special Tool C-3919 or the equivalent used, so that the outside measurement jaws are set to the reduced measurement .


8. Place Gauge, Brake Shoe, Special Tool C-3919, or equivalent over the park brake shoes. The special tool must be located diagonally across at the top of one shoe and bottom of opposite shoe (widest point) of the park brake shoes.

9. Using the star wheel adjuster, adjust the park brake shoes until the lining on the park brake shoes just touches the jaws on the special tool.

10. Repeat step 8 above and measure shoes in both directions.

11. Install brake rotor on the axleshaft.

12. Rotate rotor to verify that the park brake shoes are not dragging on the brake drum. If park brake shoes are dragging, remove rotor and back off star wheel adjuster one notch and recheck for brake shoe drag against drum. Continue with the previous step until brake shoes are not dragging on brake drum.

13. Install disc brake caliper on caliper adapter

14. Install wheel and tire.

15. Tighten the wheel mounting nuts in the proper sequence until all nuts are torqued to half the specified torque. Then repeat the tightening sequence to the full specified torque of 129 N·m (95 ft. lbs.).

16. Lower vehicle.

CAUTION: Before moving vehicle, pump brake pedal several times to ensure the vehicle has a firm enough pedal to stop the vehicle.
NOTE: After parking brake lining replacement, it is recommended that the parking brake system be conditioned prior to use. This is done by making one stop from 25 mph on dry pavement or concrete using light to moderate force on the parking brake hand lever.

17. Road test the vehicle to ensure proper function of the vehicle's brake system.
 

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you are my hero for this one. my parking brake is NOT trustworthy by any means when you are on any kind of an incline.
thanks for the instructions!
 

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I know I'm bringing this one back from the dead, but this is the exact info I need to adjust my e-brake. Thanks PhilD for posting the procedure's. :beer:
 

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It's funny how many people don't remember drum brakes, it's all the e brake is, is a drum in the hat of the disc. Just grab a flat head and flick the star adjuster until it's where you want it. It's really pretty easy once you get under there and start tinkering around. Also keep in mind that there is only about 1-2 mm of e brake pad so don't get too greedy or you will wear them out by rubbing.

Also make darn sure to adjust them when the brakes are cool, I have seen to vehicles roll down hill because the set the brake expecting it to hold and within a minute or two it rolled on down the hill when they cooled off and shrunk.

I know it sounds stupid but it's true.
 

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Thanks for the info. I have actually never had to work on drum brakes. At least not that I remember. Sounds easy enough though. I'll probably check them 1st thing in the morning so temp should not come into play. My driveway is on a hill so I'll be able to test them right away. Actually, that's how I realized it didn't work. Parked in the driveway to put the doors & top on and the e-brake wasn't holding.
 

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You'll see the adjustement star they're talking about is not that easy to work with but it does work.
I did mine a few months ago.
 
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