Popular questions

The A/C compressor clutch is turned on and off by the clutch relay in the intelligent power module on left side of engine compartment. The relay is turned on and off by the engine power train control module. If the...

The alternator may not be charging; when you put the fan on, it could be drawing too much power so the engine needs to stay running and will stall and kill the battery if battery gets too low. Check the...

The check engine light typically illuminates when an error or fault is discovered and stored in the ECU of your Toyota. In order to determine what triggered the error code, you'll have to have a professional mechanic complete a check...

The effect on oil consumption will be zero to negligible (these are both SAE 20 weight oils at operating temperature) and, in any event, any beneficial effect will be offset by the reduction in the efficiency of operation of the...

Without more information and a vehicle inspection, it will not be possible to determine the exact cause of your concerns. A certified technician, like one from YourMechanic, will be able to pinpoint the source of the leak and sound firsthand...

The re-designed gasket (Fel-Pro, for example, in the aftermarket) for the lower intake manifold on this engine, and the revised installation procedure, provide a 100% effective resolution to the notorious leak issue that you are referring to. With regard to...

Hi there. You need to check to see if the new spark plugs have spark. If not, then the engine should be checked to see if it has a bad coil or spark signal from ignition module. If you need...

If the engine does not get to operating temperature in a certain amount of time the computer will set a code after two complete drive cycles doing the same thing. This is an indication that the thermostat is stuck partly...

Hi there. In many cases, the TPS sensor needs to be calibrated correctly after rebuilding throttle body and cleaning idle control valve. It should have a voltage reading of 0.50 volts while the throttle is closed, key engaged but engine...

This may also be caused by other things such as low fuel pressure or leaking or intermittently working fuel injectors. When the fuel pressure is low, it will fail to bring the correct amount of fuel pressure to the injectors...

It is very likely that the fuse for the cigarette lighter circuit has failed. This is not uncommon. There is also the possibility that the actual cigarette lighter receptacle has failed as well. I would ask for help from one...

Hi there: If you're Check Engine Light is coming on and somebody diagnosed this as a problem with your O2 sensors or the catalytic converter emissions system, it's highly possible that the trouble part are the front or back bank...

The vehicle should be inspected and diagnosed first hand but I can tell you broadly that if the seals on the VANOS system are original they should be replaced due to the age and mileage you are reporting. Camshaft position...

The wheel bearings on the front of your car are within unitized hub assemblies and thus the grease that is placed within when the hub is manufactured is permanently sealed inside. It will not leak out. If the bearing has...

Seems like the camshaft is making the ignition retard too much. Your system should read at -11 to -12 for retard timing. It is possible that your vehicle is probably reading around -13 to -14, which will cause the engine...

If you overfilled the engine oil you may have got oil into the tops of the pistons and fouled the spark plugs. Once you adjusted oil level and start the car again it will blow smoke for a while until...

I would look inside the car for an interior light that is coming on first. Usually a glove box light or a trunk light that is staying on when the car is off. If it's not a light then a...

I recommend flushing out your fuel system with fresh gasoline and a container of methyl-hydrate. Old gas will not harden in a fuel tank unless it is more than 20 years old. You will need to remove the fuel line...

The first thing you want to look for is air leaks. Any air that gets into the engine without passing through the throttle is going to cause a high idle. When the idle reaches a certain limit, the injectors shut...

The instrument cluster on your Ford is a common failure. The thing to do is remove the instrument cluster, check for power and grounds at the appropriate connector pins. If power and ground are present, you will need to replace...

You may have a failing voltage regulator that could be allowing the alternator to supply too much or too little amperage to the battery resulting in the battery never maintaining a consistent charge as it is designed to. The voltage...

Yes, this is an issue I have experienced before myself. I had a 2007 FJ cruiser that did the same thing. The fuel filler neck is very narrow on the FJ cruiser and will cause the sense of a full...

It may simply be that the pedal needs lubrication. If you can squeeze up under the dashboard with a can of WD 40 you may be able to sort this out yourself. If not, you can contact Your Mechanic to...

It's difficult to say for sure without hearing the noise firsthand, but it sounds like you may have a bad CV axle. The CV axle transmits power from the transmission to the wheels, while following the up and down motions...

Depending on how your car is equipped, you may have an auto up/down feature on the driver window, or both the driver and front passenger windows. To use these, here’s what you do: Turn the key to ON. Push...