Q: Car won't start

The vehicle will have to have the throttle body (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-throttle-body) and idle air control valve (https://www.yourmechanic.com/article/how-to-clean-an-idle-air-control-valve-by-joyce-morse) checked to see if it needs to be cleaned. Also, the engine will need to be checked for any vacuum leaks (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-a-vacuum-leak) when the...

High brake effort can be caused by a restriction in the system. What can happen with the brake system is the brake hoses attached to caliper degrade internally causing a restriction. The hose will collapse under pressure.

Wow! Very disturbing issues to experience, especially the electrical smoke with your family in the vehicle. Based on what you've told me about you 2998 BMW 740i, this is not going to be a quick one to diagnose and repair....

This is tough to diagnose without more info, however it could be potentially some things like a faulty mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) or throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement). Either of these two parts will have a negative impact on fuel/air...

Changing the radiator (https://www.yourmechanic.com/services/radiator-replacement) should not have caused a misfire (https://www.yourmechanic.com/services/engine-is-misfiring-inspection). Replacing the plugs and the MAP sensor was a great idea. What we commonly refer to as the O2 sensor is not located in the fuse box. There are...

A starter like any other mechanical and electrical part is subject to failing sometimes for no apparent reason. However, sometimes this is misdiagnosed as well and often times mistaken for something much more simple like a fuse or starter relay....

Hello. The symptoms you describe can be caused by a few different things. If you are showing code P1899, for a park / neutral safety switch that is stuck in gear then it may be possible that the switch needs...

Hi there: In most cases, you'll want to replace the ignition lock cylinder (https://www.yourmechanic.com/article/how-to-replace-an-ignition-lock-cylinder-by-timothy-charlet) for your Volkswagen. We'll have one of our service professionals send you a price quote as soon as possible.

The camshaft sensor on this engine is mounted on top of the synchronizer in the front center of motor. The noise may be in the housing and not the sensor. The sensor can be removed from the synchronizer housing and...