Delta Posted February 19, 2008 Report Share Posted February 19, 2008 Got the speed sensor fault, and assume it is with the sensor itself. Is there a problem with the wires to the speed sensor? Got it from a friend that sometimes the wires are at fault, although , the speedometer is bouncing.... Link to comment Share on other sites More sharing options...
BodybyFisher Posted February 19, 2008 Report Share Posted February 19, 2008 There are two speed sensors the ISS (input shaft speed sensor) and the VSS (vehicle speed sensor). Your last couple of words that the speedometer is bouncing tells me it is the VSS. Its located on the top of the right output shaft. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Cadillac Jim Posted February 19, 2008 Report Share Posted February 19, 2008 I've found that coolant coming out of the surge tank overflow can wet the speed sensor, which is on top of the right half-shaft. Turn the steering wheel to the left and you will find that you can reach it from the ground and make sure the connector is tight, and clean it if necessary. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
Delta Posted February 19, 2008 Author Report Share Posted February 19, 2008 I've found that coolant coming out of the surge tank overflow can wet the speed sensor, which is on top of the right half-shaft. Turn the steering wheel to the left and you will find that you can reach it from the ground and make sure the connector is tight, and clean it if necessary. Which is quite interesting seeing that I topped off the anti-freeze just the other day! Ill see if I can locate it and keep you guys posted!! Link to comment Share on other sites More sharing options...
Ranger Posted February 19, 2008 Report Share Posted February 19, 2008 I've found that coolant coming out of the surge tank overflow can wet the speed sensor, which is on top of the right half-shaft. Turn the steering wheel to the left and you will find that you can reach it from the ground and make sure the connector is tight, and clean it if necessary. Which is quite interesting seeing that I topped off the anti-freeze just the other day! Ill see if I can locate it and keep you guys posted!! Perhaps you over filled it? Link to comment Share on other sites More sharing options...
Delta Posted February 19, 2008 Author Report Share Posted February 19, 2008 Could have, but I ordered the speed sensor for all of $14.00, should be here in an hour. Does anyone know how hard this is to change, Ill be lying on my back, under jack stands of course You say its on the passenger side on top of the transaxle? Thanks in advance guys!!! Link to comment Share on other sites More sharing options...
BodybyFisher Posted February 19, 2008 Report Share Posted February 19, 2008 Here is a cutaway view of the 4T80-E you will see the sensor on top of the output shaft, it's designated as the "OUTPUT SPEED SENSOR", remove one bolt, disconnect the electrical connector, and pull it gently straight up. Lube the new oring with trany fluid and reverse the procedure, Mike Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Cadillac Jim Posted February 19, 2008 Report Share Posted February 19, 2008 It should be just fine when it dries out. Just wipe off the connector and smell the rag; if you smell coolant, you might rinse it with water, clean it and put it back on. If that doesn't do it, you have the sensor on hand. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
Delta Posted February 20, 2008 Author Report Share Posted February 20, 2008 Well, it was the sensor, had to do it on the floor with the car on jack stands, now I know what Yoga is! Once in, code and service light went out, all is good, thanks for the help guys!!! Link to comment Share on other sites More sharing options...
BodybyFisher Posted February 20, 2008 Report Share Posted February 20, 2008 Terrific, yep you need to have hands like a surgeon at times. I am so glad I am ambidextrous Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Delta Posted February 20, 2008 Author Report Share Posted February 20, 2008 I dont even know if that would have helped, the position it was in, although being on the floor didnt help either! Link to comment Share on other sites More sharing options...
BodybyFisher Posted February 20, 2008 Report Share Posted February 20, 2008 I dont even know if that would have helped, the position it was in, although being on the floor didnt help either! Want to know a rough one?, R&Ring the electrical connector on the oil pressure switch. I did this job during the summer on the ground, I blew out my knee from getting up and down and kneeling http://caddyinfo.ipbhost.com/index.php?sho...mp;hl=crossover Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
gmr18769 Posted July 16, 2008 Report Share Posted July 16, 2008 I dont even know if that would have helped, the position it was in, although being on the floor didnt help either! Want to know a rough one?, R&Ring the electrical connector on the oil pressure switch. I did this job during the summer on the ground, I blew out my knee from getting up and down and kneeling <a href="http://caddyinfo.ipbhost.com/index.php?sho...mp;hl=crossover" target="_blank">http://caddyinfo.ipbhost.com/index.php?sho...mp;hl=crossover</a> Hi guys New here but was wondering if this sensor would give out the S030 code for speed sensitive steering fault? thanks. Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 16, 2008 Report Share Posted July 16, 2008 I dont even know if that would have helped, the position it was in, although being on the floor didnt help either! Want to know a rough one?, R&Ring the electrical connector on the oil pressure switch. I did this job during the summer on the ground, I blew out my knee from getting up and down and kneeling <a href="http://caddyinfo.ipbhost.com/index.php?sho...mp;hl=crossover" target="_blank">http://caddyinfo.ipbhost.com/index.php?sho...mp;hl=crossover</a> Hi guys New here but was wondering if this sensor would give out the S030 code for speed sensitive steering fault? thanks. This is not related to S030, your code is related to the steering. The code discussed in this thread is related to the vehicle speed sensor used for the speedomter and as a secondary speed sensor if the ISS sensor fails in the transmission. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
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