Popular questions

If you have an air leak in the EVAP system then the MAP sensor will not be able to determine the air density, and the MAF sensor will not be able to determine the volume of air entering the engine...

If your engine temperature overheated, then you have problems in the cooling system. Running it low on oil does not help an engine. If you are getting smoking and noise from the engine, then you need to have the engine...

The crankshaft is inaccessible as it is contained entirely within the solid metal (cast iron, steel or aluminum) engine block. Consequently, no external drive belt can interfere with, or even touch, the crankshaft. A harmonic balancer is bolted to the...

Hi There, Overheating with the AC on is generally caused by a couple of possibilities. When the AC compressor is beginning to fail, this may incur an increased load on the motor as it works harder than usual to turn...

If the noise occurs at idle, typical causes are the accessory (belt driven) components, the torque converter or an engine component. As you describe the rattling, it is marked enough that a mechanic would likely pinpoint it quickly on inspection....

Hi There, This may be a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates...

It sounds like the amplifier is not working. Check the fuse for the radio amplifier. If its blown, replace it with the same rated fuse and see if the sound comes back. If not, the amp has most likely failed....

If you have another key, try to start it with that 2nd key. If it starts, then the DAS (Drive Authorization System) is good and only the 1st key has lost synchronization. Try this with the non-functioning key: Insert the...

Is the Check Engine Light on? You checked the fluid quality, but was it at the proper level? A shifting malfunction can sometimes be caused by a low transmission fluid level from a leak or a failed electrical component of...

This is a common description of a clogged catalytic converter. If it is the catalytic converter that is rattling, that means the honeycomb lattice inside the cat has come loose. However, this doesn't mean the cat is clogged, but it...

As I was reading this I was thinking spark plugs, but you said there was a couple CENTIMETERS of translucent yellow oil? I can't even imagine what must be happening inside the engine to completely cover spark plugs. I would...

The power steering pump pressure switch is located on the pressure hose just before the connections to the rack and pinion steering system. If you need further assistance with your power steering system, then seek out a professional, such as...

Hello. This can be caused by a few different things. Most of the time, this is caused by a restricted radiator or a water pump that is getting weak. It can also be caused by a head gasket that has...

Based on your description, it sounds like your parking brake may be locking up on your rear brakes. I would recommend having your rear brakes disassembled and, using the special tool you referred to, try to compress the caliper. If...

Hello. My biggest concern would be the oil leak. I would need to locate the cause of the oil leak and also see how low the oil was when this issue occurred. If the engine oil was low enough, then...

Hello. There are a few possibilities for why your car is stalling when you first start it. Your car’s coolant temperature sensor could be sending the wrong information to the PCM, which will cause the PCM to send the wrong...

Hello. A malfunctioning heater can be caused by many things. The first thing I would do is check to make sure that the coolant is topped off at the proper level. If it is low, coolant may not be reaching...

Hello, thank you for writing in. The first thing you are going to want to do is verify the installation of the fuel pump. Make sure all of the electrical connections are clean dry and secure. You may also want...

Hello - the P0705 would normally indicate a mismatch between the shifter and the transmissions internally gear indicator. However your efforts to manually engage Park at the transmission is indicative of an internal transmission problem. For a professional 2nd opinion,...

The starter on your vehicle is located down on the right hand side of the motor below the exhaust manifold. If you need additional help replacing your starter, please schedule an appointment to have a professional from YourMechanic come to...

You should have the oil pressure checked first. If the pressure is normal then replace the oil pressure switch. The switch controls the light if pressure is lost or if the sensor shorts internally to a ground which sets the...

Your accessory and serpentine belts may squeak or chirp a bit in cold weather due to the fact that the belts become brittle and less pliable during the cold weather months. When they go from a cold stand still to...

It sounds like you may have a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...

The first thing you should do is replace the rear bulbs for the parking lights since they may be intermittently grounding out inside the bulbs. If still continues then replace front bulbs. If still continues then you will need to...