What is the idle air control valve on a Ford Escort? The idle air control (IAC) valve in your Ford Escort ZX2 2.0 sport coupe controls idle speed and supplies air to the engine at idle through your car's computer. If your ZX2 IAC valve fails, the computer will not be able to control engine rpm at idle, you will have a hard time starting your Escort in cold... When does the idle air control valve change? When the engine is running but the vehicle is not moving, this means the engine is idling. During this time, the number of...

Is muffler supposed to be hot? Most mufflers would deal with temperatures which range between 300 and 500 degrees Fahrenheit. Because of the heat intensity being produced by the emission system of the engine, most of the exhaust systems are indeed built to handle an excess of almost 1200 degrees. Why is my muffler getting hot? This (highly likely) means that the ignition timing is out, or the fuel mixture is too lean. One possibility on small engines that run a flywheel magneto is that the keyway/key may have damaged itself or sheared off, allowing the timing to go out....

What does used transmission fluid smell like? Healthy transmission fluid should be relatively odorless if not slightly sweet. If your transmission fluid is burnt, it will smell more like burnt toast. Why can I smell my transmission fluid? Overheated or low transmission fluid could be a potential source of this burning smell. This type of issue may be easily fixed with a transmission fluid flush and change, or leak repair. If left unresolved, the transmission could eventually damage itself enough that it breaks down completely. Can a transmission leak cause a burning smell? Leaks accompanied by a burning smell, however,...