Question about 2003 Chevrolet TrailBlazer

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When I brake the car surges. Feels like disks are warped but has recently had new brakes. This started surging about 8 months after the brakes were replaced. Could it be the fuel pressure regulator??

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If the vehicle only surges when braking sounds like you have a brake pulsation. If the brakes have become overheated like when driving down a mountain this can warp the brake rotors. They will need to be machined or replaced.

Posted on Sep 13, 2010

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usually if you cant feel a brake pulsation in the peddel or steering, its the rear brakes that may be out of true (warped) if disk. Also bad shocks will no longer dampen braking in rear.

Sep 04, 2015 | 2004 Dodge Ram 1500

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I recently put new front brake pads and had rotors turned on the front end of my 2003 tundra sr5,after a month of driving i'm getting the pulsation when braking back which is why i made this repai

HI if you have pulsation after a month you must replace the rotors
they are too thin and the heat is warping them faster then before you
had them turned
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Feb 20, 2012 | 2003 Toyota Tundra

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We change the front roter and now the brake pettle pumps when i brake

Pumps when you Brake? Do you mean you have to pump it to get it to brake or it surges the brake pedal? When the rotor was changed, most likely you had to compress the Caliper to get it on and may have changed the pads while you were there. If that is the case then sometimes the seals in the Caliper will roll instead of sliding back properly. If this is the case and you have to pump the brakes because they are spongey then you will need to replace the caliper. If the brake pedal is surging when you apply the brake (which would also be felt in the steering wheel then the new rotor was either incorrectly installed or is warped.

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When applying brakes , feels like the rear jerks...what could this be ?

prollbably warp rotors if it has disk brakes have them turned or replaced if its drum brakes they r known for grabbing too agressively if they are damp or wet.

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If you feel a pulsing in the brake pedal when you apply the brakes, your brake rotors are warped. Replace them or have them cut true again.

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Need to replace the disc brake rotors, they are warped.
On these disc brakes systems, the wheel lugs have to be torqued down when the wheel is put back on, or the rotors will warp after awhile.

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Idle surges after warm up and when brake pedal is pressed

1990 22re same problem surge when pedal was depressed thought it was booster or check valve still didnt fix it i even put a brand new booster on it just to make sure still no fix it finnally went away on its own for about a month now it does it just sitting at an idle with out the brake pedal depressed traced all vaccum lines no problem there and still have no clue

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It sounds like the rotor (brake disk) is warped. That would cause the pads to wear much more quickly because the disk "wobbles".
The warped disk can also cause the noise, depending on how bad the warp is.
When most shops change pads, they usually recommend that you "turn" the rotors, it is a way of truing the disk.

Jul 27, 2008 | 2004 Mazda 3

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