quick question jumpy needle.

[ima90szkid]

Just wondering what could cause my rpm needle to jump up and down.

for example im driving on the highway in 5th gear. 4000 rpms 70 miles per hour.

while i figure it should be steady on 4000...it SLIGHTLY moves up and down from around 38-39 to 41-42....NOT A HUGE JUMP AT ALL BUT ITS NOTICEABLE.


anyone know what it could possibly be? no cels or anything like that..

[ct tibby]

clutch slipping?

[ima90szkid]

I honestly don't think so because i examined it when i had the flywheel resurfaced and it looked in pretty good shape and that was only like a month ago...but any other possibilities?

[Purple_Ej1]

I had same problem...i took tha see through cover off my cluster and wen i was driving wit tha window down it would jump around alil bit from tha wind...took me forever to figure that out

[hondakid4dr]

That used to happen in my eg everytime my alternator was about go out get it the voltage check to make sure its recharging

[ej1 sleeper]

Alternator And\or Distributor.

[JDM8o9]

what kind of car?

[eldiablo]

I wOULD SAY ITS A VOLTAGE ISSUE. cHECK WHAT YOU ARE PUTTING OUT WHEN THE CAR IS ON FROM THE ALTERNATOR

[~Ya Boy D~]

I honestly don't think so because i examined it when i had the flywheel resurfaced and it looked in pretty good shape and that was only like a month ago...but any other possibilities?

Ur seals could be bad allowing oil to get on the flywheel causing it to slip... Yet again u would know if ur clutch is slipping.. Or at least I'd hope so

[boostedej6]

Listen to sleeper ^^^^^^^^^^^^^

[ima90szkid]

well i recently got a new ignition coil for my dizzy and got my ignition timing done ...not saying that its not that but just putting info up ...my seals were also replaced so i doubt that ...it could be alternator im going to have to do some searching this weekend haven't had much time to check it out ...i notice that it doesnt really happen in lower gears...i do alot of highway driving so thats when i noticed. will update incase i need more answers ..thanks for the help guys