Speed Sensor 93 SE - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-20-2011, 12:31 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Apr 2010
Location: Frederick Co. Md.
Posts: 58
Thanks: 0
Thanked 1 Time in 1 Post
Mr. Bill is on a distinguished road
Default Speed Sensor 93 SE

According to my GPS unit, my speedo is reading 3 mph faster than what the gps says I'm going. Speedo says 60, gps says 57. I know the speed sensor is an electronic sensor but is there any way to calibrate or correct this problem? I know the GPS is pretty accurate becasue I've used it other cars and the speedo and GPS match. Any ideas?
Mr. Bill is offline   Reply With Quote
Old 06-20-2011, 01:13 PM   #2
Junior Member
 
Join Date: Oct 2007
Location: Charlottesville, VA
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
wjsrooney is on a distinguished road
Default

Are your wheels and tires factory sized? properly filled with air? If they are factory correct and filled I would do additional tests on the speed sensor itself. Generally, they are usually functional or not functional, not often do they work but off by a percentage or two. Of course, at 30 MPH on the speedo, what does the GPS read? Does the speedo needle go down to 0, or just above?
wjsrooney is offline   Reply With Quote
Old 06-20-2011, 02:23 PM   #3
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

There'* nothing you can change on the sensor. You see, the sensor reads pulses, the cars computer knows how many pulses is one turn of the tire, and it knows how far forward the car moves with each turn of the tire. With that it knows how fast you are going. Your tires are smaller the stock, and that'* throwing you off by about 5% or so. So you either have smaller tires, your your tires are worn down.
Danthurs is offline   Reply With Quote
Old 06-20-2011, 03:07 PM   #4
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Most likely it'* a tired speedo in the cluster
BillBoost37 is offline   Reply With Quote
Old 06-21-2011, 12:24 PM   #5
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Apr 2010
Location: Frederick Co. Md.
Posts: 58
Thanks: 0
Thanked 1 Time in 1 Post
Mr. Bill is on a distinguished road
Default

Tires like new and factory correct sizing. Guess I won't F with it until it quits (which will probably be right after I figure out what the shuddering problem is).
Mr. Bill is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1986 chevy c10 3 speed to 5 speed auto conversion ChevelleGalaxie500 Chevrolet 3 05-31-2016 04:32 AM
Whell speed sensor russianpolarbear 1992-1999 13 07-02-2004 06:56 PM
New or used wheel speed sensor? J Wikoff 1992-1999 11 01-05-2004 02:08 PM
rear wheel speed sensor for abs help sse for me 1992-1999 5 10-12-2003 12:34 AM
Common there has to be a Vehicle Speed Sensor Buffer out! Bassplayincrowe Performance, Brainstorming & Tuning 2 08-06-2003 11:37 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 02:16 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.