Gotta hate myself for loving this thing this much...

I got a 94 LT1 Camaro that keeps stalling. Happens in any weather condition but usually moist and cold make it happen more often. It stalled on me twice today and has stalled on me several times before.

I'm not sure but seems like coasting or stopping makes it worse.

The opti-spark coilpack, spark plugs, and wires were replaced not too long ago (4k miles tops). Car has 102k on it, which isn't much if it had some TLC, but it doesn't. Wish I could give it some myself.

What's wrong with it?

 

Take a look at the IAC valve. If it is dirty or damaged it won't be able to control the idle speed properly.

 

x2 ^^^ seems to be a few going on here lately.

 

Oh ok. So where is this thing located? Sorry total noob here...

Another important symptom I left out was that it also wouldn't crank after stalling. It takes a few minutes of trying to get it to turn back over. The battery is fine, because I hear no clicking noise, it just wouldn't react to turning over the switch. Be it halfway (none of the lights in the cluster light up), or all the way (engine makes no sound).

 

clean the battery cables and the wires in the red junction box on the passenger side wheelwell. take em off and wire brush the heck out of em. check the ignition fuse to make sure its getting a good connection inside the plugin.

 

oh iac is on the passenger side of the throttle body under the thottle position sensor.

 

Thanks for the tips man, I checked the IAC and looks fine. Not a scratch on it. I didn't take it off (don't have the tools ATM) but detached the wire and looked at it, it was clean as it can be. All the other wires looked new and except for a tiny bit of dust, everything in the bay seems clean.

I didn't check the fuse because I didn't know which one it is, and also don't know how to make sure it's getting a good connection. Would appreciate some info on that...

What else could be my problem? Please don't tell me its that damn opti spark thing again...

 

u have to take the iac out. i took the tb off to get to mine. way easier. take the iac out and clean it if its dirty. gotta clean the inside part were the valve is. ull see once u get it off the tb. on the loss of electrical power, did u take the battery cables off and wire brush the battery terminals and the battery cable ends. also the wires in the junction box? what has the voltage on your gage been hanging at when it fails. does it even come on?

 

It's definitely not a total electrical power loss, the hazards and radio work just fine after a stall. Last time I got in it the battery needle was hanging well above the middle. It stalled on me once the same day, behind a red light. Forgot to check after it turned over.

I don't see anything light up in the cluster right after a stall, but eventually (after maybe a couple of minutes) I definitely do see the battery light come on right before starting it - as I normally would.

I'll definitely get me some tools and start doing the stuff you're saying, but for now, what could be the most possible scenario?

 

battery connections are crusty is what it sounds like to me. they get a layer of stuff on em that is hard to tell is there and it will only take so much amps before it has a partial breakdown and will some times break all power followed by partial amps then a full connection. ive seen it happen several times. that would be my first thought on it anyways. nest would be the red junction box. it has several wires that supply power to different things and if they are coroded that could explain different things getting power and others not. one or two wires may not be connecting right. next would be the ground junction on the passenger fenderwell in the same general area as the red one only it has no protection its a screw with a several ground wires on it. next would be the fuses are not getting a good connection inside the fuse boxes. next would be checking the fuse box under the hood. take it lose and check under it to see if any of the wires are looking burnt or frayed. next would be to research the ignition switch and what wires are supplying power to it and were they go, then look it over for bad wires or lose connection. im gettin tired so all of this may not make sence. lol.