ABS Light Coming on occasionally 91 Olds 98 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-15-2009, 11:07 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Apr 2005
Posts: 243
Thanks: 0
Thanked 3 Times in 3 Posts
dandyd is on a distinguished road
Default ABS Light Coming on occasionally 91 Olds 98

91 Olds Regency. For the last month or so my ABS light is coming on every now and again. It stays on until the engine is cut off, then when re-started it turns off and will stay off for several hours/days/weeks....any ideas why it'* intermittanly coming on? Is there a way to run codes to find out what'* up with this light, like the other check engine lights?
dandyd is offline   Reply With Quote
Old 10-15-2009, 11:10 PM   #2
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Sounds like a intermittent WSS, Wheel Spin Sensor problem. Pull the plugs and check for any damage or corrosion on the plugs.
Danthurs is offline   Reply With Quote
Old 10-15-2009, 11:36 PM   #3
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

Oldsmobile added a plastic protective sleeve to the wires going to the Wheel Speed Sensors in 1994 to correct a problem with the wires rubbing on the brake lines, wearing through and setting off the ABS light. Remove one of your front tires and look for a wire going to the wheel hub. The connection to the wheel hub is what Danthurs is telling you to inspect, clean and reassemble. When you reassemble them make sure you put some dielectric grease in the connector. Once that is done, follow the wire as far back as you can and examine it for damage such as being worn through. Fix whatever damage areas you see by splicing in new sections of wire. Make sure you solder any connections, use shrink tubing to protect the connection and cover the damaged area with a protective plastic sleeve sold at any auto supply store.

Do this to both front wheels.

If you clean the connections, and either fix the wire or confirm there is no damage, the next step is to get a scan. The diagnostic trouble codes (DTC'*) you are looking for can't be picked up by a normal scanner. You will probably need to take it to the dealer for a scan. Tell them what you are looking for so you are sure they scan the correct system on your vehicle. On a late model Bonneville there are several sensor failures that can cause the problem you are having. I am not sure which of this sensors your set up includes, but the scan will point to the source.

Most likely, if you get to this point, it will be one of your front wheel speed sensors that needs to be replaced, but the scan will narrow it down to the culprit.
2kg4u is offline   Reply With Quote
Old 11-14-2009, 08:38 PM   #4
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Apr 2005
Posts: 243
Thanks: 0
Thanked 3 Times in 3 Posts
dandyd is on a distinguished road
Default

Quote:
Originally Posted by 2kg4u View Post
Oldsmobile added a plastic protective sleeve to the wires going to the Wheel Speed Sensors in 1994 to correct a problem with the wires rubbing on the brake lines, wearing through and setting off the ABS light. Remove one of your front tires and look for a wire going to the wheel hub. The connection to the wheel hub is what Danthurs is telling you to inspect, clean and reassemble. When you reassemble them make sure you put some dielectric grease in the connector. Once that is done, follow the wire as far back as you can and examine it for damage such as being worn through. Fix whatever damage areas you see by splicing in new sections of wire. Make sure you solder any connections, use shrink tubing to protect the connection and cover the damaged area with a protective plastic sleeve sold at any auto supply store.

Do this to both front wheels.

If you clean the connections, and either fix the wire or confirm there is no damage, the next step is to get a scan. The diagnostic trouble codes (DTC'*) you are looking for can't be picked up by a normal scanner. You will probably need to take it to the dealer for a scan. Tell them what you are looking for so you are sure they scan the correct system on your vehicle. On a late model Bonneville there are several sensor failures that can cause the problem you are having. I am not sure which of this sensors your set up includes, but the scan will point to the source.

Most likely, if you get to this point, it will be one of your front wheel speed sensors that needs to be replaced, but the scan will narrow it down to the culprit.
Looked at wiring today and both front wheel ABS wires are in bad shape. The protective covering is all dry rotted and cracked, and the silver wiring underneath is frayed and visible. I'm assuming replacing this on both front wheels is in order. Is there anything particularly challenging about this procedure?
dandyd is offline   Reply With Quote
Old 11-14-2009, 08:51 PM   #5
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

Depends on the extent of damage/decay to the wires. It really is just a matter of cutting out the bad sections and splicing in new wire. If you can get to all the bad sections of wire, you should be able to take care of it. If I was doing it, I would solder the connections, use shrink wrap to cover the connections, and put wire loom (plastic corrugate tube that is slit along its length so you can fit it over wires) on whatever wiring I can get to. Wire loom can be purchased from any auto supply store.
2kg4u is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1998 Catera - Check Engine Light, ABS Light and TC light on lucille2 Cadillac 2 02-10-2011 11:58 AM
ABS light on, cannot read ABS codes?! B4CTROOPER 2000-2005 1 01-04-2010 06:53 PM
Seems to miss occasionally or hesitate causing the service engine light to come on rstrunk 1992-1999 3 09-02-2008 10:58 PM
ABS/Traction light on...but i still have ABS ptrfair 2000-2005 0 12-11-2007 08:33 PM
2000 ssei misses at idle after start up occasionally greg fell 2000-2005 3 03-06-2005 07:41 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 06:34 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.