Q: 2002 Lincoln Executive has a weird vibration in the rear end.

The O2 sensor is a sensor in the exhaust system that reports to your car's computer how much unburnt fuel is in the exhaust gases, which then tells the fuel injection system how to adjust the fuel mixture. When the...

Hello, thank you for writing in. Your guess that the heater core is to blame is very likely correct. Not only are they common components to form leaks, but it is also the component located in that area. It would...

Unless your repair involved replacement or modification of engine controls, such as the IAC valve or throttle position sensor, the instant you start the truck after replacing just a, or both, head gaskets, the engine should operate normally. If the...