Phase1GSR

Hey guys today I looked at a camaro z28 for sale. When i first started it the rpm and mph guage both tacked out and then came back down, but the motoe didnt rev up that high. Also the car sounded like it had a small cam(maybe or maybe not). Is that jumping of the mph and rpm guage normal, or is it because of a tune?(someone told me when some cars get tuned, they do that sometimes)

RPM WS6

iTrader: (3)

Was the car a '99? I beleive there is a TSB on '99 LS1 F-bodies for issues with the dash cluster needles maxing out on startup.

Phase1GSR

Yes the car was a 99'

2001NBMZ28

Seeing a lot of posts on this lately with the colder weather on the '99 models. Bet the trip odo is also resetting to zero. All it takes is for the battery voltage to be low in most cases. Here's the TSB #99-08-49-009.

mattraypharbor

iTrader: (2)

i like it when cars do that realy fast at start up.

JerseyLS1TA

iTrader: (2)

Thats exactly what my car has been doing. I made a post about it b/c I was a little confused as to what was happening

TheLS1Kid

iTrader: (12)

i have a 99, no issues here

01WS6er

iTrader: (2)

I have a tune in my 02 2500hd and the cluster does weird things. Gear selection is off and the tach moves alot when the key is on and the eng is off. Remove the tune & it is all fine. Just to let you know that tunes can also create problems.

S99TA

my 99 ta dose the same with the gauges pegging and the trip resetting

JerseyLS1TA

iTrader: (2)

Well at least i'm not the only one and there was a service bulletin so has anyone done anything to fix it yet?

Shinigami2x4

My 99 never does that, it only happend once on a near dead battery and a fried alt. Other then that i never had issue's with my guages.