Ok, here's the deal. Every time I stop while in drive, my tach is jumpy and the car has a bit of a rough idle. Sounds like it wants to stall, but hasn't yet. Then as soon as I am on the gas, things seem kosher, but it still jumps a little.

What's this sound like? Thanks!

 

Alternator/batt is going out. Trust me. I have a remote mount batt and a couple days ago the power wire came off. And the tach was all over the place. Ihave a high output alt so the idle/running was fine.

 

Ahhh, it is most likely the crappy battery that is in there now that leaks acid. I've been meaning to get a new one anyway. Thanks!:hail:

 

is that really the problem? because that sounds exactly like what mine is doing, but i know my battery and alternator are fine. i dont think it is like your prob HUNTER C, because ours is not just the tach jumping inaccuratley...the rpms are actually jumping

 

Well, mine does seem to be more of just a tach problem and not an RPM problem. Because other than the crappy idle at a stop, it seems to run ok when on the gas, just the tach jumps a little, but I don't feel the RPM's changing.

 

sounds like a bad igntion module. if the ignition moduel is bad i would replace teh coil module and pickup.

 

Well, I replaced the battery and checked out the alternator. Battery is good, and the alternator puts out 14.4 volts. So it's not that.

So ignition module eh? Always something. I'll try to narrow it down before I jump into anything.

 

No I know that the tach was doing, and what was the prob. The tach was going side to side at a steady RPM Gas peddle. And it was the dissconnected batt wire, as as soon as it went back on the tach was fine.....

 

The module either works or doesn't. no in between. It is what feeds the ignition to run the car.

 

Ohhh, you mean the batt wire that goes to the distributor? I'll have to take a look there. It's just driving me nuts.

 

Your problem isn't the module, but the PICK UP COIL in the distributor. The jumping in the tach is the coil going to ground and not signaling the module which runs your tach and main coil. Comman problem on Camaros and the easyiest to fix but you have to take apart the whole distributor to slide off the old one and slide on the new one. Don't delay because if your having a ruff idle it's getting bad, the jumpy tach is just the begining. When the pick up coil finally goes bad the car won't run.