live in NY and its been about 15 degrees out w/ a wind chill of 0-5. anyways its been real cold. im driving my car for about 5 minutes and for no reason the speedometer needle jumps from 15mph to 50 then down again. anyone having this problem, think its cuz its so cold?
its a 94 civic ex 2dr auto. 135k on it

 

I had a problem similar to that and it wasn't seasonal after it started. I finally had to replace the speedo out of a donor cluster. Had the mileage set to correct at a speedo shop. If it helps to hit the dash, it's the speedo end. If not, it's the sensor end at the tranny.

 

aight, thanks. BTW how much did ya pay for them to correct the miles

 

before you buy a new sensor try using some dielectric grease on the connector at the tranny worked for me this will help keep out corrosion and keep the connection from erroding

 

hmmmmmmm auto parts store?

 

$25