weird speedo

[shoryuuu]

my speedo on my car is being weird, it works fine when the car is not warmed up, but when it reaches optimal operating temp, it just dies out till the car cools down again. wat is this weird prob? i searched but cant seem to find anyone else with this prob

[mikeroy420]

Check your speed sensor in your tranny. Check the FSM, there might be some voltage measurement you can take to see if it is functioning correctly. Or just replace it. You should list more detail, like what engine, etc.

[g6civcx]

Swap out speedo with known good.

[s13 @ fullboost]

Swap out speedo with known good.


^^^^
Best way to go right there =]