JimmyJam Posted June 19, 2009 Share Posted June 19, 2009 My speedo has been acting up. From 0-20mph in traffic at low speeds, my speedo has been bouncing up and down. What would cause this?? After about 10mph (actual speed) it levels out and is fine. I am baffled. Quote Link to comment Share on other sites More sharing options...
nipper Posted June 19, 2009 Share Posted June 19, 2009 welcome. we cant tell you a thing without knowing year, model, mileage transmiision and if it is 2wd or 4wd. nipper Quote Link to comment Share on other sites More sharing options...
JimmyJam Posted June 19, 2009 Author Share Posted June 19, 2009 Sorry 1995 Legacy Wagon 2.2l 240K Automatic Transmission (same miles) 4wd Quote Link to comment Share on other sites More sharing options...
nipper Posted June 19, 2009 Share Posted June 19, 2009 thats a hard one, as you can either have a cable or en electronic spedo. 1995 is when they switched. Look under the hood, at the firewall around the master cylinder. You will see one cable, for the gas pedal. Do you see a second cable that loops down to the transmission? Do you have any CEL lights? nipper Quote Link to comment Share on other sites More sharing options...
idosubaru Posted June 19, 2009 Share Posted June 19, 2009 a friends 97 Impreza Auto EJ22 AWD is doing the same, i'd be interested to see what this is. hopefully it's something simple because the driven gears in the trans aren't going to be replaced by most folks (intensive, costly, or both). Quote Link to comment Share on other sites More sharing options...
rverdoold Posted June 19, 2009 Share Posted June 19, 2009 Your speedo is driven by a cable comming from the transmission. You can check up my log about regreasing the cable inside. maybe the notch is worn. Quote Link to comment Share on other sites More sharing options...
john in KY Posted June 20, 2009 Share Posted June 20, 2009 My 95 dd this a few years back and it does not have a cable-driven speedometer. Think the problem was a failing VSI but I just replaced the instrument cluster. Found a low mileage one from a 98 and haven't had the problem since. Quote Link to comment Share on other sites More sharing options...
johnceggleston Posted June 20, 2009 Share Posted June 20, 2009 Your speedo is driven by a cable comming from the transmission. You can check up my log about regreasing the cable inside. maybe the notch is worn. true on older models, newer ones have a pair of wires from the front speed sensor on the trans/front diff, passenger side kind of low, to the speedo. depending which is cheaper or easier to come by, replace the sensor or speedo. i always thought it was the sensor. Quote Link to comment Share on other sites More sharing options...
unibrook Posted June 23, 2009 Share Posted June 23, 2009 My bet is its your instrument head. My old Saab used to do this for a year. Then went dead for a year. Then fixed itself. I would just leave it as is. Bigger fish to fry. Quote Link to comment Share on other sites More sharing options...
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