The speedometer quit working today while my wife was driving. Does any one know if it is a cable with linkages or of the elec. variety? any advise would help as I need to fix failry soon

 

it should be a cable type. check to see if it's turning, if not, it's the plastic gear inside...

 

Fixed The gear that always biodegrades in the speedometer head drives the odometer only. If both the speedo and odometer croak, a. speedometer cable fell out of the back of the speedo head b. the cable broke or c. the spedometer drive gear where the cable joins the transmission either died or fell out on the pavement, never to be seen again... Incidentally, ask your wife the particulars of the speedo's demise. The easiest way to kill them is to re-set the odometer while the car is in motion. The speedometer cable originally had a supposed tamper proof collar where it attaches to the speedo...the collar also serves as a positive attachmemt ...when they get jacked with, it's no longer a simple thing to keep them attached permanently. On my 144, I have to re-attach it about every 3 months.

 

Hey, I am new to fixing volvos, and pretty much all other cars as well. I have a volvo 740 (or 760, long story) and the speedo and odometer stopped working about 3 months back. I took it to midas, to get an inspection. They passed it, and after I asked if they saw the speedo didn't work, they said no, then went and checked the "wire" and said it was alright. I think they were lieing because they coulden't find it.

anyway. before it stopped working it started jumping up and down.

So... how would I fix this problem?

It is a 760(or 740) 1989 Volvo turbo intercooler staton wagon.

I would really like to get to 300K miles already. It's at 295K and I have driven more than 5K miles on it after the speedo broke...

 

Midas inspection on a '89 760? No, they wont find anything besides a muffler. Your speedo is electronic and the problem is most likely inside the speedometer itself. Does the odometer or trip meter work? There are diodes inside that need to be replaced-a speedo shop is your best bet.

 

Feel free to start a new thread for a new car. The original poster has a totally different speedometer set up. By threadjacking, responses will be confusing as you have an electronic speedo whereas the original poster has cable driven.