Q: Headlights randomly turn on at night.

Hello, this comes up frequently on this vehicle. As you may know the thermostat on this engine is contained in a plastic housing. This housing also contains the coolant temperature sensor. Due to the fact that is it made of...

It seems like a sensor problem to me. When the engine reaches operating temperature, the computer takes control with readings from the main sensors, and adjusts for the most efficient mixture. If one of these sensors are reading incorrectly, or...

Engines that have been completely overhauled and rebuilt will burn some oil for the first couple of thousand miles. It is in these first couple of thousand miles that the engine does a lot of breaking in. After an engine...

The first thing you'd want to think about is: does it do it in reverse and drive? If it only does it in reverse, you either got a problem with the transmission or your differential, the rear differential. One of...

The only part you did not mention and the most likely cause of the problem is the inside lower control bushings which could possibly be bad. I would also check the steering gear mount bushings for excessive wear. Both of...

Probably one or more electrical connections are getting wet when it rains. The wheel speed sensor (https://www.yourmechanic.com/services/wheel-speed-sensor-replacement) for example is at wheel level (inside the wheel arch), and catches all sort of road spray. Once you find the problem connectors,...

Hi there: the P0420 OBD-II Error code (https://www.yourmechanic.com/article/p0420-obd-ii-trouble-code-catalyst-system-efficiency-below-threshold-bank-1-by-jamahl-walker) indicates that the catalytic converter is not working as efficiently as it is intended. If the voltage of the downstream oxygen sensor decreases, and begins to fluctuate like the upstream oxygen sensor,...

Hi there. There is a blockage in the engine preventing the engine from cycling the coolant. If there is a new water pump and a new thermostat, then the coolant should be cycling. Check the radiator for any blockages. Drain...

Hi there. There is a resistor for the door locks that keep a voltage on the driver door lock cylinder to activate the secondary door locks electronically. If the resistor is leaking (losing power) it tends to cause the door...