momartin22

iTrader: (2)

i have a 99 firehawk and everytime i start the car the speedometer and the tach go all the way up then back down then my tripometer resets..i disconnected the battery and cleaned the posts and terminals and that worked fine for a while..but now it started back up...WHY???? its annoying and pisses me off any help is greatly appreciated thanks!

samson_420

iTrader: (1)

Wrong toppic, but ok.


It is either the voltage droping too low or there is a bad contact in the electrical system.

DarkCloud

is the car cranking slow too??? chances are its time for a new battery....

momartin22

iTrader: (2)

no it fires right up....the battery was in it when i bought the car...optima redtop

LS1 HOSS

Yeah, mine did the same thing for a few months and then one day I went out and it would barely crank. Your batterys gonna go soon. Once I put the new battery in the tachs stopped freaking out when I started it, so I knew that was it.

momartin22

iTrader: (2)

mine has been doing it for two years...

Black 99 Bird

iTrader: (31)

Take a closer look at your terminals. You already said you cleaned them once for a temp. fix. Maybe they need to be replaced.

Rick99TAWS6

iTrader: (4)

Common problem on the 99's, battery is on its way out and/or your power and/or ground terminal connections need cleaning up

samson_420

iTrader: (1)

A lot of times the cables are filled with corrosion. Even if you can not see it. Run through every thing with a voltmeter.

kclskgl

iTrader: (21)

When i would start my car my rpms would go to like 2200 and then fall back to 800 after like 20-30 secs. I also had a red top and just replaced it now i dont have the problem. Also i have a 1999.

keliente

iTrader: (22)

Replace the battery, it's a common 1999 problem. Happened to mine too and now it's gone since I changed the batt.

bterrill

it happened to me 3 times on my 99 hawk, 2 times it was very cold and first time i started it in 2 weeks or so.

the other time, well, i think my battery was not charged much @ the time from playing the stereo a bit while cleaning it out.

I never had issues with it not firing up or taking longer and nothing else was every wrong with it, and like I said it's only happened 3 times since may of last year.

momartin22

iTrader: (2)

ah damn this car...its always something...clutch goes out...so i replaced that and the flywheel and for the hell of it threw in a 9'' BMR rear suspension and a linelock....then the motor blows up...i order a 408 and all that good ****....whats next? its a vicious cycle