If after the engine has come up to operating temperature your Jeep suffers poor drivability, surging, rough idle, excessively rich exhaust, or pinging even with mid-grade fuel, chances are the MAP ...

Warning lights can be life and money savers for car owners, but there are a couple of non-light signs to watch out for that may signal your engine coolant temperature sensor is faulty.

A diagnostic test can tell if the temp sensor is working or not, but obviously cannot tell if it is giving the correct temperature readings. How could know that without an entirely separate coolant ...