Q: Will not rev but will slowly

If your Altima is equipped with power seats, you have more functionality than what’s offered with manual seats. Here’s what you need to know to get the perfect position: The bar at the front slides forward and back to move...

Sport mode controls the speed of the engine and the shifts of the transmission such that your car has a sportier feel, and more closely resembles a track car. To turn on Sport mode, Press the Sport Mode switch. An...

The shoulder straps on the rear seats are not adjustable. However, the rear seat belts come with comfort guides that can increase comfort (especially for kids who have outgrown their car seats), and can also increase safety. Here’s how to...

Sounds like you have done a lot of work on your van recently. It sounds like your vehicle went into failsafe mode causing it to lose power. My suggestion is to have a mechanic, like one from YourMechanic, come and...

Hi there, thanks for writing in. Most ancillary electrical items (like tail lights, instrument panel lights and tag lights) are actually controlled through an electrical relay box. On your Ford Expedition, there is usually a main relay control box (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-electronic-control-relay)...

Hello - the P0420 and the inconsistent waveform for the post-cat O2 sensor might be related to your failing intake manifold gasket issue. If tiny droplets of coolant are being sucked into the engine - one failure mode for this...

Oxygen sensors are tested using an automotive scope or oscilloscope. In your circumstance, if there are more than 100,000 miles on the sensor, the sensor output should be verified on a scope. The mechanic should show you the output waveform...

Hi there. If the gasket in between the timing cover and the engine is leaking, it is recommended to replace the timing cover and gasket at the same time. In many cases, when the gasket becomes damaged, the cover itself...

Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft...