Just replaced the speed senser with gear on 1996 mitsubishi eclipse. It still doesn't work . Is it posible the gear in the transmission isnt meshing with the speed senser gear?

Yes it sounds like your transmission is starting to give.. or your low on fluid

Have you tested the speed sensor to see if it is producing a signal going back to the computer ?

sounds like you have a bad torque converter

did you have scann prefomed ??

Do you have a warning light on? If so get the trouble codes read.

i would check the gauge first and then the wires if its digital
if its not a digital set up i would replace the speedometer cable

You likely cannot overcome this trouble by yourself. Please seek the help of a transmission shop.

Thanks for your interest in FixYa.com

Transmission may be low on transmission fluid or the transmission fluid pump failed. If it's electrical, you can still get it in to gear, but would not shift gears. Good luck and keep me posted, check transmission fluid level and have the transmission line pressure tested. Before that check all your fuses.

• you might have lost first gear. check transmission fluid to see how dirty it is if real dirty or may be low. sounds like transmission fluid was low and burnt first gear out.

Hello, there isn't a speedometer cable on these cars. If this is a non turbo model the speed sensor is on the back of the transmission. The easiest way to get to it is to remove the battery, battery tray, and intake tubing from air filter to intake manifold. Once all that is out of the way if you take a light and look on top of the differential ( on these cars it is the back of the transmission towards the firewall). You will be able to see it better with a flash light. If I recall right it is a tall electronic sensor that is held in with a 10mm bolt. Remove the bolt and carefully pull staight up. When it comes out of the transmission there will be a shaft and a small plastic gear on the bottom of the sensor. That is how it reads your speed. To install a new one reverse the process. Make sure to work the new sensor in carefully, don't force, to give the teeth on the gear to align.