Q: I had my radiator replaced also my lower radiator holes replaced and my car keeps shaking really bad when the car is still

Hello! Indeed, the ignition switch is the most common cause of the car not shutting off when the key is turned. The ignition switch failing (https://www.yourmechanic.com/services/ignition-switch-replacement)is a safety issue and should be diagnosed by a qualified technician, such as one...

It sounds like your Mercedes Benz E500 may have a starter issue (https://www.yourmechanic.com/services/starter-replacement). If everything works as far as the radio and lights go, the battery is most likely performing as it should. If the battery is okay and the...

In order to tow this vehicle behind an RV you will want to have the vehicle in neutral with the key in the off poition. When the vehicle's transmission is in neutral, the steering wheel is unlocked. This will enable...

Hello and thank you for contacting YourMechanic. What seems to be happening is the EGR valve is sticking open and when it gets hot, the valve shuts. This will cause an engine to stumble when first turned on. Anther thing...

Hi there. If the wheel is rotating when the steering is turned and you hear a knocking sound, then this is the sound of a constant velocity (CV) shaft bearing failing. Remove the front wheels and check around the CV...

Hi there. If your anti-theft system is active and the engine will not start up, then you may need to reprogram your key fob to the vehicle if you have one. If you do not have a key fob, then...

It takes roughly 12 hours to replace the compressor and expansion valve. As you may know, the expansion valve is attached to the evaporator under the dash and thus is not readily accessible, hence the hours. If you input your...

Hello and thanks for writing in. What you are describing sounds like a dirty or faulty mass air flow sensor. The mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) monitors air intake as it is mixed with fuel prior to being injected into...

Hi there. On a manual transmission, most shifting problems are caused by a clutch failure or a gear failure. This is rather common for a vehicle that is more than 15-years old and over 250,000 miles. Trying to pinpoint the...