Q: My car has the OBD-II codes P0030 and P0135 for the heater control circuit and sensor. Where is this sensor located?

Accessory drive belts are used to transfer rotational motion from the crankshaft to the other accessories on the engine. The driven accessories include the generator, power steering pump (https://www.yourmechanic.com/parts/power-steering-pump), air conditioning compressor (https://www.yourmechanic.com/parts/ac-compressor), secondary air pump, and the water pump...

It's got to be burning it. If you don't see it leaking on the ground and you lose oil, then the only possible explanation it that it is burning it. First, change the PCV valve. They cost five to six...

Hello, thanks for writing in about your 2002 Chevrolet Camaro. There are several things that can cause a backfire. Spark plug wires (https://www.yourmechanic.com/services/ignition-cable-spark-plug-wires-replacement) in the wrong location, a faulty fuel injector (https://www.yourmechanic.com/services/fuel-injector-replacement), a failing sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) and more. It looks...

Hi there, thanks for writing in. If the noise is there even when the engine is running, then the balancer needs to be checked as well as the engine mounts. Either one of these will cause this to occur. I...

Hi there. This does sound like an electrical issue. Most of the time this is caused by a problem with either a loose negative batter ground, but I have also had a lot of problems with the positive battery cable...

First of all, fix-a-flat is to be used as a backup to using a good spare tire (https://www.yourmechanic.com/article/how-long-do-spare-tires-last). If you add the fix-a-flat to a leaking tire, you should follow the directions on the can to add the liquid to...

This grommet is on the valve cover if I remember correctly and typically a small piece of material falling in would not be a big deal. It is best not to start the engine and attempt to have the piece...

This may be a sign of a vacuum leak. High idle speeds or in some cases rough idle, stalling and hissing sounds are common signs of a vacuum leak. When a vacuum leak is present in an engine, this causes...

Be sure the pick up screen, and pick up tube, in the oil pan are not blocked. Then, measure pump pressure as close to the pump as possible; there should be a test plug at which you can attach a...