ABS probem after LS1 brake install
07-07-2005, 04:57 PM
#1
Registered User
Thread Starter
Join Date: Feb 2005
Posts: 209
ABS probem after LS1 brake install
Hello-
I've just swapped a set of 98-up front brakes on my 97 Z. They work great with one exception.
As I creep to a stop, the last foot of movement, the front ABS activates. I get a low traction light, the pedal drops slightly, and I can hear the ABS motor working. No way it's actual slip, we're talking 2 mph and under on dry pavement.
All I can say is WTF? Do I need to bleed the ABS module? I topped off the master cyl as I did the caliper swap, and only had the brake lines unhooked for 1 minute per side.
I even re-used the original hubs.
Anybody had a similar experience? Any advice?
Thanks!
I've just swapped a set of 98-up front brakes on my 97 Z. They work great with one exception.
As I creep to a stop, the last foot of movement, the front ABS activates. I get a low traction light, the pedal drops slightly, and I can hear the ABS motor working. No way it's actual slip, we're talking 2 mph and under on dry pavement.
All I can say is WTF? Do I need to bleed the ABS module? I topped off the master cyl as I did the caliper swap, and only had the brake lines unhooked for 1 minute per side.
I even re-used the original hubs.
Anybody had a similar experience? Any advice?
Thanks!
07-07-2005, 06:05 PM
#2
Registered User
Join Date: Aug 2004
Location: Northwestern Ontario, Canada
Posts: 209
Re: ABS probem after LS1 brake install
Might be a bad ABS sensor causing that problem.
I had to change the two front ABS sensors on my truck this past winter and it was doing a similar thing - not sure how'd you'd test to make sure of that though.
I had to change the two front ABS sensors on my truck this past winter and it was doing a similar thing - not sure how'd you'd test to make sure of that though.
07-12-2005, 04:56 PM
#3
Registered User
Thread Starter
Join Date: Feb 2005
Posts: 209
Re: ABS probem after LS1 brake install
Update! Fixed!
Rechecked all connections, re-bled the ABS unit, no improvement. Swapped the 98-up hubs onto the car. Problem solved, it had a bad ABS sensor in one of my original hubs. Thought about it for a minute, then remembered dropping one of the hubs off the workbench. Guess what, drop marks on the bad hub. I'm my own worst enemy
But it's fixed 
Rechecked all connections, re-bled the ABS unit, no improvement. Swapped the 98-up hubs onto the car. Problem solved, it had a bad ABS sensor in one of my original hubs. Thought about it for a minute, then remembered dropping one of the hubs off the workbench. Guess what, drop marks on the bad hub. I'm my own worst enemy
But it's fixed
Thread
Thread Starter
Forum
Replies
Last Post
squarehead
General 1967-2002 F-Body Tech
7
01-15-2015 07:02 PM