Speedometer problems

Tiny
JACKCU
  • MEMBER
  • 1994 GEO PRIZM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 133,000 MILES
I believe the problem is the speed sensor. I found what I believe to be the variable speed sensor on the transfer case. It has one small bolt that I removed but I found that it has two wires that run down into the transfer case and are connected to something in the case. Several questions here. Is this the variable speed sensor or something like the knock sensor? It seems as though I can reach the rest of the vss thru the transmission pan, is that true. I am even in close to the problem or should I be looking else where for my speedometer problem fixes. The sensor that I am referring to is on top the the transmission cased near the transmission mount.
Thursday, April 22nd, 2010 AT 5:53 AM

6 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
For an inaccurate speedo, checking the vehicle speed sensor is the correct way to go. a diagram is below of the location (left front of transaxle).


https://www.2carpros.com/forum/automotive_pictures/261618_Noname_2095.jpg

Was this
answer
helpful?
Yes
No
+2
Friday, April 30th, 2010 AT 10:35 PM
Tiny
MINOURA
  • MEMBER
  • 6 POSTS
I looked at the area indicated for the vehicle speed sensor (VSS), but I could not find it. I removed the air-filter container, but the area is still covered by bundles of electric wires and coolant tubes. Do I have to remove more parts?
Was this
answer
helpful?
Yes
No
Wednesday, June 12th, 2019 AT 7:39 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 49,876 POSTS
You might need to remove or just move wiring and hoses out of the way. Can you please shoot a quick video with your phone so we can see what's going on? That would be great. You can upload it here with your response.
Was this
answer
helpful?
Yes
No
Monday, June 17th, 2019 AT 11:30 AM
Tiny
AAE2288
  • MEMBER
  • 2 POSTS
  • 1993 GEO PRIZM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 98,000 MILES
What are the step by step directions on replacing the vehicle speed sensor, located on the transmission.
Was this
answer
helpful?
Yes
No
-1
Monday, June 17th, 2019 AT 11:30 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Remove or Disconnect :
1.Negative (-) battery cable.
Vehicle Speed Sensor


https://www.2carpros.com/forum/automotive_pictures/12900_vss_29.jpg



2.Vehicle speed sensor (VSS) electrical connector from VSS.
3.One bolt and VSS from transaxle case.

Inspect
1.For VSS diagnosis procedures.
2.VSS 0-ring for cuts or damage. Replace as necessary.

Install or Connect:
Tool Required: J36850 Transjel Transmission Assembly Lubricant
**Apply J36850 to the VSS 0-ring.
1.VSS into transaxle case; secure with one bolt.
Tighten:
**Vehicle speed sensor (VSS) bolt to 6 Nm (53 lb.in.).
2.VSS electrical connector to VSS.
3.Negative (-) battery cable.
Tighten:
**Negative (-) battery cable-to-negative (-) battery terminal retainer to 15 Nm (11 lb.ft.).

https://www.2carpros.com/kpages/auto_repair_manuals_alldata.htm
Was this
answer
helpful?
Yes
No
+1
Monday, June 17th, 2019 AT 11:30 AM (Merged)
Tiny
MINOURA
  • MEMBER
  • 6 POSTS
I cannot locate the vehicle speed sensor (VSS).
I removed the container for the air cleaner and could locate the back-up light switch on the transmission.
In which part of the transaxle is the VSS located?
I assume that it can be accessed from above.
What is above the VSS if it cannot be seen from above?
Was this
answer
helpful?
Yes
No
Monday, June 17th, 2019 AT 11:30 AM (Merged)

Please login or register to post a reply.

Related Instrument Cluster Gauge Speedometer Content

VIEW MORE