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Brakes

Tiny
MIKER44
  • MEMBER
  • 2006 PONTIAC TORRENT
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 185,000 MILES
When I step on the brakes just before coming to a complete stop the brake pedal suddenly rises and makes a groaning noise
Tuesday, December 29th, 2015 AT 11:55 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
It may be the abs activating, have it scanned for codes.
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Tuesday, December 29th, 2015 AT 11:56 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
You probably won't find any codes in this situation. If there were the system would have shut down and this never would have happened. One of the ABS speed sensor is not accurate at low speeds and computer is interpreting that as a brake lockup and activating the ABS to release that wheel. You will probably need a scan tool with frame by frame to be able to capture the glitch in one of the sensors.
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Tuesday, December 29th, 2015 AT 1:10 PM

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