Whats the most likely cause for speedometer bounce? Guessing the speedo itself but don't want to tear out the dash without a little confirmation.

 

the cable needs to be greased up...they do it on like all foxes...i pulled my cable out of the sleeve and coated it with bearing grease, and it helped it out for a while, but the bounce came back

 

that's because the speedo head unit is bad...I have 2 sitting around that do that.. I finally gave up on finding a decent used 140 mph unit for my 1992...it bounces a little between the speeds of 50 and 65 mph[:@]

 

try the speed sensor in ur tranny where the cable connects. mine was broken and my cable bounced got that fixed and no more bounce..

 

****.. u should see my speedo when im in the slow down area at the drag strip... esp right after a nitrous run... it goes from like 45-pegged back and forth lol... its quite funny

 

mine does that from like 0-25 after that it doesnt do it again, if i leave hard on the gas it doesnt do it tho only when im puttering along

 

mine does it too... but i think everyone has that problem...

 

Add me to the list, mine is on crack... My sister calls my 5.0 a POS because the speedometer bounces and my AC smells like pancake syrup. [8D]

-Jeff