1991 Subaru Legacy speedometer noisy

Tiny
XD5Y3WZ
  • MEMBER
  • 1991 SUBARU LEGACY
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 123,000 MILES
The speedometer or cable makes a scratchy noise which is worse the colder the temperature (and car) gets. In the figid cold (<32 degrees) it's noisiest when the car is first driven, and seems to abate somewhat as the car is driven. In the summer, the problem is not noticeable.

I know this could be either the speedometer head, or the cable. I want to try lubricating the cable first.

Can the inside cable in this model car be removed from the cable housing from the transmission end, or does it have to be removed from the speedometer end inside the dashboard?
Do you
have the same problem?
Yes
No
Monday, February 11th, 2008 AT 10:48 AM

1 Reply

Tiny
XD5Y3WZ
  • MEMBER
GOOD NEWS ! Since no one provided me with an answer to my question, I decided to tackle this project myself. Rather than taking the dashboard apart, I decided to investigate the transmission end of the speedometer cable/housing first. I followed the housing under the hood from where it came through the firewall down to the transmission. I was able to get at it fairly easily without even having to get under the car. Where the housing meets the transmission, I found a dust cover rubber boot (similar to where an ignition coil wire goes onto a coil). After 17 years, it was pretty well stuck, and I had to slit it with a razor blade to get it out of the way. I was then able to see where the cable housing went into the transmission. I had expected to have to unscrew it, but I found it was being held in place by a retainer spring clip. I released the spring clip and was then able to gently pull the speedometer cable housing away from the transmission. As I pulled it out a few inches, I saw that the inner speedometer cable was still in the transmission. I stopped pulling the cable housing and gently pulled on the inner cable. It came right out of the transmission. I then pulled the speedometer cable all the way out of the cable housing. It came out easily. I sprayed some WD-40 into the cable housing, added a little bit of heavy weight (80-90) gear oil and then sprayed in some more WD-40. I then put the inner cable back in the housing and gently worked it back and forth, pushing it in and out to evenly distribute the lubrication inside the cable housing. I finally pushed the inner cable all the way back up into the speedometer. Then I inserted the bottom end of the housing into the transmission and reattached the spring clip. I finished by replacing the rubber dust cover that I had slit with the razor blade. The toughest part of this whole process was getting the spring clip back on to lock the cable housing into the transmission. It was a tight spot to get at, and took some trial and error and patience. I'm waiting for some really cold weather, but thus far I haven't heard any more speedometer noise. I think this did the trick.
Was this
answer
helpful?
Yes
No
Tuesday, February 19th, 2008 AT 1:35 PM

Please login or register to post a reply.

Recommended Guides