Ford Repair: 93 Ford Taurus 3.8 L, upper intake manifold, air control valve

Question
It stalls when I stop, I have to put it in park and step on the gas to make it not stall,but it runs OK on the highway .When it stalls it has a strong smell of exhaust

Answer
The most common cause of a stalling problem is a bad Idle Air Control Valve (IAC). When the engine is at idle, the throttle plate is closed and the only air entering the engine is through the IAC. This is all controlled by the Powertrain Contol Module. It uses the IAC to allow a small amount of air to enter the engine for starting and to adjust idle speed. The IAC is mounted to the upper intake manifold with two small bolts, and has a small electrical connector on it. It is about two by four inches. It may be sticking closed. You can remove it (be careful, it may have a paper gasket) and clean it out with an Air Intake Cleaner. If this doesn't help, it may have failed and need replacing.  The exhaust could have a build-up of raw fuel when the engine stalls.

I hope this helps,
Dave