FormulaTA327

I was sitting at a red light and turned the wheel slightly to get it straight and then the rpms droped below 500 rpm. it felt like a miss but im not sure. this is the fist time it did this. spark plugs are fairly new but the plug wires are original. i think its spark related but im no mechanic. it hasnt done this anymore but preety sure it will do it again. there was no engine light or ses light that came on so i guess that could rule out a sensor. the car has 93,000 miles on it. any feedback would be helpful thanks.

supersick99z

iTrader: (66)

Start simple...clean the MAF, the TB and all the induction stuff. Could possibly be a bad ground somewhere or a sensor GOING bad

black00ssFL

iTrader: (24)

Engine bogged from sudden load of the power steering. It takes a lot to turn tires when not moving. You're car is fine.

FormulaTA327

well i was setting idle at a light again and it it bogged down again under 500rpm real quick, i didnt even turn the wheel this time, at another light it surged foward a little. what are the possible things it could be that would make it do this. would a bad coil make it do this or old plug wires, it seems to me to be spark related. it dosnt do this every time so its hard to test anything

black00ssFL

iTrader: (24)

Did you have the A/C on? Could be the compressor turning on/off causing the idle to change. And, if your IAC is dirty, or the TB blade itself is diry, it could cause problems with load changes on the engine.

z28clark

iTrader: (2)

Give that throttle body and iac a good cleaning, should help out quite a bit.

FormulaTA327

thanks i will try to clean the IAC and look at the trottle body blade tomorrow, i minds well clean the MAF while i have it apart. I didnt have any air on nor lights. all those things are probly dirty since i never cleaned any of them. One quick question which one of the two on the TB is the IAC, the top or bottom, my guess was the top but figured id ask before i screw up