Possible ABS problem. Help diagnose
Thread Starter
Instructor
Joined: Jul 2014
Posts: 165
Likes: 1
Possible ABS problem. Help diagnose
2002 c5z. Over the last 6 months when turning while driving I sometimes notice a rapid clicking noise that sounds like abs activating while normal driving on street. It seems to be worse when turning right. Problem persist with abs/traction off. Problem started when I put 315/30R18 on the rear. I now have 305/35R18 on the rear and problem still exists. Do you guys think my abs is broken or do I need to correct my tire sizes; if so what size should I put on front. Any help appreciated. This is annoying
Melting Slicks
Joined: Nov 2008
Posts: 3,146
Likes: 203
From: Edmonton Alberta, Canada
Probably just one of your wheel sensors having a poor connection. You can take it to a stealership$$$ and have them diagnose it or DIY if you are handy. Simply jack up car remove wheel then remove wheel sensor plug (from back of wheel housing) spray with WD 40 or some electrical connector cleaner and re install. Do this for all four wheels because you don't know which one has the poor connection...Ask me how I know, lol. Good luck. Greetings, Rob
Thread Starter
Instructor
Joined: Jul 2014
Posts: 165
Likes: 1
I lied. I have a bunch of codes. I was driving home and checked for codes. I'll have to take a video, check the codes, and post them. I think one of them was a 1287. Wheel is straight. I'll try cleaning the connectors at the wheels, then an alignment (I'm due for one anyways) then it looks like I'll be replacing the sensor. I'll post the codes tomorrow
Thread Starter
Instructor
Joined: Jul 2014
Posts: 165
Likes: 1
here are my codes. I dont know what my problem is, starting to lean more towards mechanical than electrical. possible bad wheel bearing. it even does it with ABS off
28-TCS C1287 H
C1293 H
40-BCM U1096 H
58-SDM U1096 H
99-HVAC U1096 H
AO-LDCM B2202 H
B2282 H
B2284 H
U1255 H
U1064 H
U1016 H
U1096 H
A1-RDCM B2283 H
B2285 H
U1255 H
U1064 H
U1016 H
U1096 H
BO-RFA U1096 H
I cleared everything, Ill see if anything comes back. As soon as I have a warmer day Im going to put the car in the air, check the ABS connectors and check the wheel bearings and tie bar end links. What else can this be? As soon as the weather is better ill post a video
28-TCS C1287 H
C1293 H
40-BCM U1096 H
58-SDM U1096 H
99-HVAC U1096 H
AO-LDCM B2202 H
B2282 H
B2284 H
U1255 H
U1064 H
U1016 H
U1096 H
A1-RDCM B2283 H
B2285 H
U1255 H
U1064 H
U1016 H
U1096 H
BO-RFA U1096 H
I cleared everything, Ill see if anything comes back. As soon as I have a warmer day Im going to put the car in the air, check the ABS connectors and check the wheel bearings and tie bar end links. What else can this be? As soon as the weather is better ill post a video
Drifting
Joined: Sep 2009
Posts: 1,862
Likes: 594
From: Prescott, Arizona
Perhaps the rear end does not have friction modifier or enough friction modifier, causing the limited slip clutches to chatter, or causing some spider gear noise when turning.
If the other leads don't pan out, a rear end fluid change with friction modifier might help, and won't hurt.
After a rear end fluid change, it can take some time, perhaps three hundred miles, for the new friction modifier to work its way into the clutch packs.
If the other leads don't pan out, a rear end fluid change with friction modifier might help, and won't hurt.
After a rear end fluid change, it can take some time, perhaps three hundred miles, for the new friction modifier to work its way into the clutch packs.
Thread Starter
Instructor
Joined: Jul 2014
Posts: 165
Likes: 1
Perhaps the rear end does not have friction modifier or enough friction modifier, causing the limited slip clutches to chatter, or causing some spider gear noise when turning.
If the other leads don't pan out, a rear end fluid change with friction modifier might help, and won't hurt.
After a rear end fluid change, it can take some time, perhaps three hundred miles, for the new friction modifier to work its way into the clutch packs.
If the other leads don't pan out, a rear end fluid change with friction modifier might help, and won't hurt.
After a rear end fluid change, it can take some time, perhaps three hundred miles, for the new friction modifier to work its way into the clutch packs.
Thread Starter
Instructor
Joined: Jul 2014
Posts: 165
Likes: 1
and its only when i turn to the right at street driving speeds. highway speeds I dont seem to notice it
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