Originally posted by kclark21:
BTW, what is the IAC valve? Should I be looking into this as well??
It's the Idle Air Control valve. Basically, it's supposed to let just enough air in to keep the engine idling. It seems like the engine uses more air than the valve is calibrated for, like maybe the idle curve is off. I'm going to try a junker and see if I can't find one that I can try to clean up and possibly dissect to get a feel for how exactly they are supposed to work. I can get the valve off a junker with the entire itake for about $10.
I've got new plugs and wires (plugs gapped a tiny bit smaller than book specs) with no difference. Fuel filter has been replaced, as well as running 2 bottles of Techron through 1 tank of 93 octane.
Do you have the clunking sounds in the rear? If so, the rear sway (stabilizer) bar links have bad bushings. I'm figuring up a way to fix that one on the cheap.
