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Jeep brakes repair questions and answers

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290 Questions
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  • sirchas7
    sirchas7 - 2002 Jeep Grand Cherokee - Brakes - 12/26/2011
    What is causing a malfunction with my grand cherokee brake lights?
    I recently replace the brake light switch, the problem that I'm having is when the brake peddle is pressed when the lights are off the high mount light and the brake lights work. When I turn on the lights the high mount light is lit and the tail lights are working, ...
    • MikeM
      12/26/2011 MikeM
      yes corrosion in the terminal under the bulb, clean them with Isopropol alcohol and Qtip. Worked for me
  • Brett B.
    Brett B. - 2002 Jeep Grand Cherokee - Brakes - 12/26/2011
    Anyone know of common taillight/ brake light issues with '99-'03 jeep cherokee's?
    I'm getting power to the rear, the third brake light works when I press the pedal. Replaced the shield unit with the circuit board and even tried new bulbs? My night lights work just no brake lights (third is ok), when I hit the pedal.
    • MikeM
      12/26/2011 MikeM
      yes corrosion in the terminal under the bulb, clean them with Isopropol alcohol and Qtip. Worked for me
  • Brett B.
    Brett B. - 2002 Jeep Grand Cherokee - Brakes - 12/26/2011
    Anyone familiar with 99-03 jeep cherokee tailight problems?
    I am getting power to the rear, the third brake light works, four-ways, and night lights work. When I press the pedal, no brake lights? '02 cherokee laredo 4.0
    • MikeM
      12/26/2011 MikeM
      yes corrosion in the terminal under the bulb, clean them with Isopropol alcohol and Qtip. Worked for me
  • carl69
    carl69 - 1992 Jeep Wrangler (YJ) - Brakes - 12/25/2011
    1992 Jeep Wrangler YJ
    I have a 92 Wrangler with a 95 mitsubishi montero rear end I need 2 know how and wha t I need 2 hook it up
    0 answer
  • KJ
    • Jay Giron
      12/4/2011 Jay Giron
      check for :
      fuse or the break relay or even a faulty break switch.
      Jay Giron
      12/4/2011 Jay Giron
      the break switch is located on the break pedal behind the dash panel.
    • shadowsbane
      12/23/2011 shadowsbane
      I had a problem with my hazards, turn signals and brake lights not functioning. Was a blown fuse in the fusebox under the hood. Can't remember which one specifically.
  • Eric
    Eric - 2004 Jeep Grand Cherokee - Brakes - 12/21/2011
    Right Rear Brake light works when lights are off, it does not work when lights are on, What is the problem?
    This is the Right Rear Tail Light, bulbs have been replaced.. only have the problem with brake lights when lights are on
    0 answer
  • Erin
    Erin - 2004 Jeep Liberty - Brakes - 12/19/2011
    Why does my oil light come on when braking?
    My oil light comes on and dings but only when using the brakes.
    • Jimm
      12/19/2011 Jimm
      Usually due to several possibilities; low engine oil level, faulty oil level sensor, or faulty oil level indicator.
    • jlofwash
      12/19/2011 jlofwash
      check level of oil.....when you step on the brakes,the oil which is a liquid rushes toward the front of the pan and if the level is low oil may be leaving the oil pump with very little oil covering the intake...........thats the only thing i can think of.........................jl
    JMWHITTON - 2002 Jeep Grand Cherokee - Brakes - 12/14/2011
    Possible brake problem?
    Jeeps been doing it for last 6 mths now. Whenever I brake and it comes to a halt theres a groaning noise from the front. Also if I take a lil pressure off the brake pedal itll groan foward until I let off. I already checked and the brakes/rotors are fine.
    • Jimm
      12/14/2011 Jimm
      Often, the brake noises are related to the disc brake pads (backing plate) not lubricated. Try to remove the brake pads and apply some disc brake anti-squeal (gel) to the back of the brake pads where they contact the brake caliper piston. Sometimes a small amount of this anti-squeal material with help quiet the brakes during application.
  • blkbrd20
    blkbrd20 - 2002 Jeep Grand Cherokee - Brakes - 12/8/2011
    Left brake light works only under certain conditions
    Headlights on- taillight works but turns off when brakes are applied. Headlights off- brake light comes on when brake is applied
    0 answer
  • Hasenfefer
    Hasenfefer - 1996 Jeep Grand Cherokee - Brakes - 11/23/2011
    How do I remove a lug nut that is half sheared off now and is frozen solid to the stud with nothing to grab on to?
    Was put on by an overzealous mechanic with a powerful impact wrench. Could barely loosen all the others, but this one wouldn't budge. Finally ended up shearing off about half of it when I resorted to a breaker bar. I tried penetrating oil and hammer blows on my ...
    • HouseCallAuto
      11/23/2011 HouseCallAuto
      There are no special tools needed, just patience. Someone is going to have to put some time in on this and this someone probably should be a mechanic equipped with all the toys he may need. High speed grinder, air chisels various sockets. There are no rules here.
  • mo
    mo - 1995 Jeep Grand Cherokee - Brakes - 11/18/2011
    Thump thump thump
    Got tires replaced, now making thump, thump
    • Jimm
      11/18/2011 Jimm
      When the tires were replaced, were they also balanced? Typically, the thump noise is related to tire balancing or tire flat spots. Can you pinpoint the sound to a specific location - or wheel (corner) of the vehicle.? If so, start at this location for the balancing check.
      Also, be sure the wheel is installed and the lug nuts were tightened correctly; cross-pattern and to the proper torque.
  • having trouble
    • HouseCallAuto
      11/18/2011 HouseCallAuto
      It is very likely from what you have said that you need to replace brake pads and rotors in the front at least.
  • Denise
    Denise - 1999 Jeep Cherokee - Brakes - 11/16/2011
    Brakes pulsate when comming to a stop
    • Jimm
      11/16/2011 Jimm
      Several possibilities; warped brake rotors / brake rotors not parallel, faulty / worn wheel bearings. Try the 'How-To-Guides' feature on this website for specific steps to check the wheel bearings and brakes.
    • TechSam
      11/16/2011 TechSam
      Rotors are out of round, need machining or replace with brake pads.
  • marc
    • HouseCallAuto
      11/15/2011 HouseCallAuto
      To rule out a leaking brake booster simply close off carefully the rubber vacuum hose that supplies vacuum to the booster with the engine idling. A normal (not leaking) booster will exhibit no perceptible change in the engine idle when closing off or releasing the hose. Just use a needle nose pliers to do it. If you close the hose off and the engine stumbles and then runs different immediately then you have a vacuum leak from the booster or the plastic check valve at the end of the hose. Try it and update the post.
  • jcodya
    jcodya - 1997 Jeep Wrangler (TJ) - Brakes - 11/9/2011
    Whats the best way to brake light troubleshoot bulbs are good
    no blown fuses and relay on pedal is good light over spare is only one that works
    • Spoon Sports
      11/9/2011 Spoon Sports
      The brake light circuit is still a simple mechanical switch on the brake pedal. Should be trivial to troubleshoot. It might simply need adjustment.

      If that doesnt work...Check the display. Ask a helper to step on the brake pedal while you check the lights from the rear. If no lights appear, check the fuse that connects the brake lights. The owners manual will show the location of the fuse box and which fuse is for the brake lights. Pull out the fuse and look at the wire in the central window. If the wire is broken, replace the fuse. Make sure the new fuse is not blown, and carries the same amperage.

      Take note of lights that are out, if any are working. The problem may be cured by replacing the bulb in a brake light that's out. A burned out bulb has a broken filament and a dark brown spot on one side. Check the owners manual for bulb type.

      Check the circuit if replacement bulbs and fuses do not restore the lights. Find the wiring diagram in the vehicle assembly manual. The circuit for the brake lights runs from the battery to the fuse, to the pedal switch, to a connection plug, to the lights. The circuit has to be checked with a volt tester at all points.

      Check the battery power and the light on your volt tester. Turn the ignition key far enough to activate the electrical systems. Turn on the lights to check for battery power. If the battery has power, ues it to check the volt tester. Put the black lead (the ground) from the volt tester on the negative battery terminal. Briefly touch the red tester light on the positive terminal. The light on the volt tester should flash brightly.

      Test the wiring to the fuse. Clip the ground wire to solid metal near the fuse. Touch the light tip to both sides of the fuse. Both should light the tester. If neither side lights, the wire between the battery and fuse is bad. If only one side lights, the fuse is blown.

      Test the switch and wiring. Touch the light tip of the tester to both terminals on the brake pedal switch without putting any pressure on the pedal. One should carry power and the other should not. When both show power, the switch is stuck and the brake lights are always on. If neither shows power, the wiring between the fuse and the switch is bad. Now check both switch terminals while the pedal is depressed. Both sides should light the tester. If not, the switch is bad.

      Check the connection plug. Unplug the connection and refer to the vehicle manual to identify the brake light wire. Touch the tester light on the brake light wire at the inner socket on the battery side. If the tester lights, the power is flowing to this point. If not, the wire between the plug and the pedal switch is bad.

      Check the socket. Plug in the connector plug and remove the bulb. Touch the contact inside the socket. If the tester lights, the socket is good. The socket and wire running to the plug should be replaced if the tester doesn't light.

      Check the bulb with the ground wire. The bulb must be in its socket. The ground wire running to the socket should be black or brown. Stab the tester through the insulation. If the tester lights, the bulb is good. Replace the bulb if it doesn't light.

      Check the ground wire. Remove some of the insulation around the ground wire. Twist one end of the extra wire around the exposed ground wire. Touch the other end to a solid piece of metal. If the brake light comes on, the ground wire is bad.