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#1 |
250 V-6 Club
![]() Join Date: Feb 2005
Location: San antonio, TX.
Posts: 898
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I have a 93 GCM sierra. Every time I press the brakes to stop my front end starts to bouncing up and down. I know it is not the back because I can fell it in the steering wheel. And it does not happen when I tried to stop the E-Brake. I have put new tires, front end alignment, brakes, shocks, and had the rotors turned. If any one has any ideas please let me know.
Thank You Ralph Vega
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1970 Chevy C/10 6 Cyl. 43k original miles all factory ![]() Never ask a stupid question unless you want a stupid answer ![]() |
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#2 |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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Re: Please help stop the bouncing.
Usually thats a front disk brake problem... Make sure your calipers and rotors are good
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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#3 |
250 V-6 Club
![]() Join Date: Feb 2005
Location: San antonio, TX.
Posts: 898
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Re: Please help stop the bouncing.
Yha the calipers are fine I also had the rotos recut and new brakes installed.
__________________
1970 Chevy C/10 6 Cyl. 43k original miles all factory ![]() Never ask a stupid question unless you want a stupid answer ![]() |
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#4 |
Senior Member
Join Date: Mar 2006
Location: modesto CA
Posts: 239
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Re: Please help stop the bouncing.
toss the rotors dont waste the time of having them turned they worp the once you have them turned they are thinn and worp even faster
if you are set the the rotors arnt the problem then chack and see if you have front ABS and see if you have a problem with your module
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http://www.cardomain.com/ride/2461088 |
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#5 |
Registered User
![]() Join Date: Nov 2006
Location: Nashville, TN
Posts: 1,510
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Re: Please help stop the bouncing.
yep, measure the rotors with a dial indicator just to be sure
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#6 |
Registered User
Join Date: Feb 2006
Location: Oklahoma City
Posts: 588
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Re: Please help stop the bouncing.
Have u tried unplugging the EBCM (electronic brake control module)?? Might try that, it is a problem with those that I have seen before.
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1970 Chevy C10 "Under Construction" ![]() 2002 Chevy S10 V6 ![]() |
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#7 | |
250 V-6 Club
![]() Join Date: Feb 2005
Location: San antonio, TX.
Posts: 898
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Re: Please help stop the bouncing.
Quote:
Thanks Ralph
__________________
1970 Chevy C/10 6 Cyl. 43k original miles all factory ![]() Never ask a stupid question unless you want a stupid answer ![]() |
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#8 |
Senior Member
Join Date: Nov 2006
Location: Yukon Oklahoma
Posts: 2,647
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Re: Please help stop the bouncing.
Warped rotors cause a vibration or pulsation when brakes are applied, warping comes from rotors being hot and then quick cooled, or overheating. I have also seen rotors continue causing the pulsation when turned off the car, find a shop that can turn the rotors on the vehicle, or replace them, sometimes the rotors are not flush against the hub, and turning them off the car makes them true to themselves, not that they are bolted to.
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Happiness is towing your "new" truck home. 1972 C-10 1982 GMC (parts truck??) ![]() 1969 c10 parts truck 1969 C-10 ( my sons) 1992 Silverado 4X4 (now the boys truck)(now mine again ![]() 2002 Tarus (my wife loves that car) |
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