RPM help

[blkaudi98]

Okay, so yesturday was the first warm day here in michigan. it reached about 62 deg.
Anyways i was driving around mid-day, when i looked down at my RPM, and it wasnt working correctly. What i mean is, the needle wasnt flowing fluently. It seemed to get stuck, then it would jump up.
Suprisngly, later in the day, around 10ishh, it was 36 deg. and the RPM needle was working fine.

Anyone know what is going on???

i dont beleive this is a one time occurance problem. i think it might happen over and over again.

thanks for your help

[blkaudi98]

anyone????

[onemoremile]

Weird. I've got no idea. Coming home from a friend's house during that 55 degree evening my sunroof was closed and the control was lit but dead. Worked great the next day though.

[blkaudi98]

well i drove again yesturday, and then today. and it seems only to do it when it is warm out. anything around 30 and its fine.

Anyone know what is going on??

[diode]

I might be wrong but I think our cars have an rpm sensor...maybe that's on its way out?