Shakin When I Hit The Brakes Lite [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Shakin When I Hit The Brakes Lite


crazy05
06-11-2009, 11:49 PM
ok when im drivin i hear a squeak at the same point in rotation of the wheel and then when i hit the brakes litely the front wheels shake back a forth bad some times and others it dont do it at all but prob is deffinetly on drivers front could it be a wheel bearing cause the rotors are new and the brake pads too cause i thought it had a warped rotor so any way thanks for any help here :cool:

sledog
06-12-2009, 04:12 AM
Maybe a separated belt in your tires?

buildingup
06-12-2009, 05:53 AM
Just because the rotors are new doesn't mean that they didn't get warped. Also, I noticed if its a wheel bearing going out you would feel it while accelerating

kakymax
06-12-2009, 06:19 AM
I had a cracked rotor when that happened to me.

Chromer
06-12-2009, 06:53 AM
Also, many aluminum wheels/brake rotors are very sensitive to wheel lug torque. I have actually worked on vehicles that had rotor shake, loosened and then properly torqued the lug nuts WITH a torque wrench, and the rotor shake was gone

Might try that...

alleghenyrose
06-12-2009, 07:29 AM
Jack up your front end, grab a tire at top and bottom and wiggle it. If it is sloppy, wheel bearing. If it is tight, try the other suggestions like retorqe of the lug nuts and finally check brake rotors for runout.

leetSteve
06-12-2009, 10:37 AM
My guess is a warped rotor. The squeak is probably a different issue.

You say they are new. What did you replace them with? Some cheaper aftermarket brands are built using recycled metals and aren't hardened as well as other.

crazy05
06-12-2009, 01:26 PM
thanks for all the help im workin on it now will have more info later and how do u check for run out and i rotated my tires and still have it and retorqued the nuts to still there but thanks to all crazy05

pa32rt
06-12-2009, 01:32 PM
I am assuming it's the truck in your avatar. If so, I had the same problem and couldn't get rid of it.

I did a brake job to freshen up the bearings and get rid of a little warpage (shake when braking). 5000 or less miles later, same thing happened. So, I freshened the REAR brakes, thinking they were not doing their job and heating the fronts too much. I am so easy on brakes it's not funny, so I knew it wasn't my driving style.

Freshened the fronts AGAIN when I did the rears and 5000 or less - it happened AGAIN. So, thinking the rotors had gotten too thin, I got NEW delco fronts. 5000 miles, same thing. Warped.

I finally replaced the MASTER CYLINDER and bled the whole system. Turned the NEW rotors and didn't have any problem after that. The REAR portion of the MC had gone away slowly. I always had a low pedal, but always chalked it up to rear drums. These trucks (mine was a '98 dually) were known for MC and booster problems.

Try a new delco MC and see how you fair out.

crazy05
06-12-2009, 02:45 PM
yes its the truck in my avitar i need to do my decription yet thanks to and it drives me nuts cause it dont do it every time its weird man lol

crazy05
06-12-2009, 08:36 PM
yeah i have the low pedal deal and do adjust drums to get it up some but it never has felt like a buddy of mines does we both have the hydraboost system off the power stereing pump but mine have always been different and a harder pedal than his ANY MORE INFO HELPFUL THANKS TO ALL

crazy05
06-13-2009, 01:17 PM
ok i figured out what it was the lower ball joint on pass side was bad and the extra strain on the drivers side wheel bearing caused the inside of the bearing to fail so when i hit brakes some time it shakes some time it dont but shes good now lol and drivin good thanks for all help flyin down the road now