Question about 2007 Pontiac Montana

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Brakes rotors worp and shoes clang - 2007 Pontiac Montana

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Rotors warping is a common problem on this van. Be sure to use quality parts - you get what you pay for.
As with all cars, if your brakes are not free floating, they will stick on and rub the rotor while driving causing them to overheat and warp as well. Be sure your brakes are properly serviced. Excessive brake dust on your rims is a sure indicator of this problem.
There was a design change to the splash shield, the old design caused more road debris to attack the rotor causing increased wear/warp.

Posted on Jan 23, 2015

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Posted on Jan 02, 2017

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Brakes vibrate the more they heat up, down hill with 5th wheel attached. I have change rotors and pads with no change, any ideas?


Sound like you over heated the the rotors and now there are worpped ..
You need to replace at least all parts in the fronts rotors pads and the calipers do the whole thing .
These parts are so cheap now a days their made in china . WE ARE TALKING 50 DOLLARS A SIDE FOR PARTS

Mar 19, 2015 | 2008 Chevrolet Silverado 2500HD 2WD

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Emergenct brake will not hold


The linkage could need to be adjusted. Or the brake shoes inside the rear drums are worn out and need to be replaced. If you accidentally drive the brake on. It doesn't take long to wear those brake shoes out. You can normally smell them when that happens. On today's vehicles they are actually designed with 3 different brake systems. Front brake disc and rotors, rear disc and rotors, and inside the rear brake rotor their is a small brake drum where the emergency brake shoes are located. The only purpose for the shoes and drums is emergency brake only (normally). Hope this helps.

Nov 27, 2012 | Cars & Trucks

1 Answer

Is there a certain way to change rear brake rotors. They seem to be frozen and will not come off. I did not see a set screw in the rotors like some of the new models have.


ok i have been doing the for 22 yrs..heres the prob...inside the rear brake rotors r ur parking brake shoes..there is either a rust lip the built up on the inside of the rotor causing the parking brake shoes to grab the rust lip when u try to remove the rotor..if this is the case u will also need to repalce the rear parking shoes and the parking brake shoe holddown spring kit since it will probably break when u have to pry the rotor off....or u maybe able to de adjust the rear shoes by the self adjuster...look on the back side of the other side of the brake rotor an u should see a over slot just below the control arm...if it there use a brake spoon or straight slot screw driver to de adjust the rear park shoes.move it up or down ..one way will tighten them the other way will loosen them...if ur rotor doesnt move at all take off the rear caliper an hit the back side of the brake rotor to knock it off

Jul 16, 2011 | 1998 Ford Explorer

1 Answer

Brake pedal pulsing


Its a combination of worped rotors and uneven braeke pad ware The whole system needs to spin vary true if you get over heating at the rotors they worp or if the last time the pads were replaced the rotors worn' t turned or replaced then the pads could not ware evenly and would over heat the rotors and they would no longer spin true . Watch out on ice or slippery condutions they tend to lock up and through you out control at the slightest touch of the brakes

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How to remove brake rotors on a 1996 ford explorer


How to replace the rear brake pads on a 1995 through 2001 Ford Explorer The system utilizes a drum-in-hat type rear brake rotor. The integral drum allows the use of a drum-and-shoe type parking brake system. All other components are similar to their front disc brake components Remove the two bolts on either side of the brake hose with the rubber boots. Do not remove the four bolts where the axle ties in. The two bolts to be removed require a 10mm socket/wrench. Loosen the pads from the caliper Rotor Removal In order to take the rotors off (replace with new or have them machined), it is best to loosen the emergency brake shoes. To do this, behind the rotors, in the back there is a rubber plug, remove that and you can use a screw driver to engage the teeth of the adjusting screw, turn it clockwise to loosen, usually 10-20 teeth. Usually this means turn it downward. After this, it may still be difficult to get the rotors off without tapping them. Use a rubber mallet and hit them from behind. Before really whacking the rotor, make sure you have loosened the adjusting screw enough. It may take heavy swings of the rubber hammer to do this. It will eventually break loose. Parking Brake You might want to check the parking brake while you are here. To remove:
  • Remove the rear disc brake rotor.
  • Remove the outboard return spring.
  • Remove the adjusting screw spring.
  • Remove the rear brake shoe hold-down spring and pin.
  • Remove the brake shoe adjusting screw and nut.
  • Remove the front brake shoe hold-down spring and pin.
  • Remove both parking brake shoes and the inboard return spring.
  • Check the parking brake lever for excessive wear and replace as necessary.
To install:
  • Position the front parking brake shoe to the backing plate and install the hold-down pin and spring.
  • Install the rear parking brake shoe with the inboard return spring.
  • Position the brake shoe adjuster screw and nut on the shoes and install the rear shoe hold-down pin and spring.
  • Install the brake shoe adjuster spring.
  • Install the outboard return spring.
  • Adjust the parking brake shoes and install the rotor, caliper and wheel.
  • Lower the vehicle and tighten the wheel lug nuts to 100 ft. lbs. (135 Nm).
ADJUSTMENT
  • Measure the inside of the drum portion of the rear brake rotor
  • Remove the rear disc brake rotor.
  • Using Brake Adjustment Gauge D81L-1103-A or equivalent, measure the inside diameter of the drum portion of the rear disc brake rotor.
  • Subtract 0.020 in. (0.508mm) from the first measurement, adjust the brake shoes to that size
  • Adjust the parking brake adjuster screw until the outside diameter of the parking brake shoes measures 0.020 in. (0.508mm) less than the drum measurement.
  • Install the rear disc brake rotor.
Reassembly Reassembly is easy. Put new or machined rotors back on by sliding them over the lugs (they should slide on easily.) Loosen bleeder valve (having a catch bottle handy is good). Push calipers in slowly (using a c-clamp or large channel lock pliers), close bleeder valve. Put on pads. Lubricate metal clips with small amount of anti-seize. Re-adjust the emergency brake by turning the opposite direction from loosening. Refill the brake master cylinder

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5 Answers

Shimmy in hard braking


The break roters either need to be turned (shaved down to smooth) or replaced.. When the roters get warn - the slightly worp thus causing shake or shimmy when breaking..

Sep 24, 2009 | 2006 Cadillac DTS

1 Answer

My 87 civic sedan shakes real bad, the brake pedal wont go down, the front end shakes real bad, and the car sometimes idles low to were i cant go over 25 mph. what is wrong


SOUNDS LIKE WORP ROTORS I REPLACE ROTOR AND BRAKE PADS SEE IF THAT HELP AND CHECK WORN PARS IN FRONT END LIKE TIE RODS

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1 Answer

2003 Monte Carlo new brake pads, rotors,. Braking is fine but waffles


check the rear rotors(i assume it has rear pads not drums) they probly are worped ,if not have front end checked for worn parts and allighnment

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1 Answer

How do I reinstall the parking brakes on my 2001 GMC Jimmy.


hi from the uk not too conversant with your model ? BUT here in uk the same type of rear calipers for hydraulic disc brakes and a seperate set of brake shoes operate the park brake/s which is internal of the rotor ?? thebrake shoes will have an adjuster manually adjustment when rotor/drum is in place ? so if you look at the area between the top of shoes you may see a threaded rod with a serrated round wheel which when turned on thread will move shoes out one way and in the other ? so to fit rotor you must rotate this wheel so shoes close up enableing to fit rotor/drum over shoes easily ? then secure rotor with screws?? if fitted then you adjust ppark brake shoes by turning with a flat screwdriver via a hole which is/should? be in rotor and will turn in line with this adjuster? tighten brake on then turn back notch by notch till rotor turns free or just? do this b4 you fit the disc pads then repeat on other brake assy on other side? re assemble discpads and pump brakes till hard this then leaves the park brake cable to adjust if req'd if so pull p/brake it should come up approx 4 or 5 clicks to fully lock of brake this allows for what is known as reserve travel left on cable to apply as brake shoes wear ok? hope this helps?

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