DougsfastZ

iTrader: (4)

I have a strange problem that just showed face on my 98 Z28. During a WOT blast on the 1-2 and sometimes the 2-3 shift, the car will cut off for a split second and fire back up. You can't hear the motor shut down, but all the gauges reset along with the radio and ASR resetting. I can repro the problem all the time on the 1-2 shift, sometimes the 2-3 and never the 3-4 shift. I'm thinking it has nothing to do with RPM but the shock of the shift, and of course the shock on the car is worse in lower gears.

Any ideas? Maybe a loose ground?

Doug D

christsbane

will it happen when you hit a bump too? if so then it could be a loose wire somewhere

irnbru83

yeah, if a good-sized speedbump does the same thing, you got a loose wire somewhere (most likely)

jmm98LS1

iTrader: (28)

Check your battery hold down. If it breaks loose, your battery will rock back and the positive post will arc against the a/c condenser.

DougsfastZ

iTrader: (4)

Never seen it do it on a bump, I'll try that on the way home and check my battery hold down.

Thanks,

Doug D

A-Dub

iTrader: (6)

Likely a ground issue, could be due to the engine torquing over at WOT, releasing during the shift, and torquing back again.

Check the battery and the grounds on the back of the driver's side head.

JEB Garner

You just might be hitting the rev. limiter and the limiter is shouting things down for a second. The rev. limiter is easy to hit in 1st and even in 2nd. Not as likely in 3rd.

A-Dub

iTrader: (6)

Since when does hitting the rev limiter cause the gauges to reset? Thats not the problem....

irnbru83

one extreme case could be problem with rev limiter. Rev limiter turns on and causes a short somewhere. Not very likely, but i see weirder things at work every day.

DougsfastZ

iTrader: (4)

I found it.

The other day, pulling out of the driveway, no power steering and fluid everywhere. What happened was the heavy power lead to the alternator was tapping the return side of the power steering pump and was arching across, and finally put a hole in the line. This also freyed must of wire to the alternator. Worn motor mounts caused it and will get replaced this weekend.

Doug d