my speedo sensor dont work and hasnt, but just resently my speedo will jump when im gettin on it like itlle go crazy up and down and then 2 days after that started the battery light flickers at high rpms or when im driving the car hard as in shifting...Can anyone tell me why its doing this

 

at high rpms your alt belt may be slipping. as for the speedo, the speedo head might be goin south. mine is doin the same in my EJ, and i am just too lazy and dont feel like fixing it.

 

it might also be your ignitor

 

bad altenator go to autozone and get it tested for free

 

its a brand new alternator well its been on the car for maybe about 6 months maybe....yea just tonight the lights started dimming at higher rpm like before just the battery light would now all my lights dim. and what do you mean my speedo head is shot? whats that

 

same **** happened to me last saturday and it was the alternator, while i was at it, i changed ac,power steering, and alternator, and timing belts so the problem is gone.

 

Ok update.....alt belt is tight so its not slipping, and tonight the car acually wouldnt stay started unless the lights were off and i was giving it gas. the lights were dim as **** when they were on, and battery had to be charged numerous times.......so battery or alternator? i know to get it checked cuz i am tomm but just wondering if any of yall know

 

another update....not the battery or alternator do i have no clue what it is so i dropped it off at an auto eletric place and see if they can figure it out...

 

Is the battery terminal connected well?

 

Did you buy a NEW alternator, or a remanufactured one?

 

new....the negative was just a little bit lose but nothing big