My 99 Z28 is doing something strange but I'm not sure if it is normal sicne I just got it. Every now and then when I start the car, after a couple second the speedometer and tachometer will spike and both will go all the way to max (150 mph and 7000 rpm). Then they return to the zero position and after a second or two and tach will come back up to the normal idling rpm. Also when this happens, the trip meter resets itself which sucks since I'm trying to get an accurate mpg reading for this thing.

So...is this normal?

 

sounds like your gauge cluster is loose or has a bad connection i would try to take off the bezel and push it in a little better and tighten the screws some.

 

Not to be a @$$ but I strongly think the other guy is wrong. I had the same thing happen to me a few weeks ago and the dealer ended up charging me $100 to tighten the battery terminals and they aslo put 40 miles on the car. Check the battery terminals and if its not that its something else electrical, probably your alternator. Either way its not normal.

 

This typically happens when a battery is going bad or it has a bad connection. Nothing major. Just check the battery.

 

HA ....!!!!


IDIOTS !!!!!!!!!

Sheesh,.......

 

JOYRIDE!!!!!!!!

 

any little rocks stuck/molded in the rear tires w/ the 40mi.? just leave it here for 3 hour no 4 waita minute just come get it at the end of the day yeah thats it I'm pretty booked

 

lol ya typical


howd u get that litttle picture below your name....

 

Its the avatar, In user CP(control panel),select Edit options...down near bottom of page it says w/link get avatar or something. Donate $5 to Cz28.com and Jason Administrator will put ya one on yours.

 

oh how do u pay...thru paypal???

 

I dont think its the battery because the radio should go to 'LOC' mode if power is taken away from it. And it never has. Where can I find the connections the connect to the gauges so I can check them? I dont wanna take anything apart. I'm comprehending taking it to the dealership because it also needs new rotors. It is under an extended warantee. Does a warantee cover a problem like this? Thanks

 

There is a TSB out for this problem on the 99s.
Try searching LS1.com or asking a GM dealer about it.
If I remember right it happens the most when it's cold outside.

 

What does TSB stand for? I dont like problems,did you get the prob. figured out Ferocity02?

 

Technical Service Bullitin GM makes these available to the dealers when they come up with a fix for a common problem.