Popular questions

Hello. As you know, there are two main components to the heater in your vehicle. One is the heater core which uses the warm coolant passing through the motor (and the heater core), and the other is the blower motor...

A common tell tale sign of the heater core not working is the heater not providing warm heat when turning it on. You may also notice the floor being a bit damp in the event that the heater core might...

You most likely have a coolant leak into the engine through an intake or a head gasket leaking. If you have water in the oil it may damage the crankshaft bearings if ran too long with the water in the...

Hello. There are several things that could be causing your rough idle condition and therefore there are multiple possible solutions. Carbon buildup inside the intake manifold and valve train is a big cause of rough idle. This can usually be...

Hi Maurice, Thank you for contacting YourMechanic. In regards of your question about battery programming, unfortunately we currently do not provide this service. We are very sorry for the inconvenience. Questions? Check out our FAQ page, call us at 1-800-701-6230...

Let me start by saying that there could be one or more issues contributing to a loud rattle and vibration. Diagnosing a vibration and rattle are a hands-on skill to determine the correct repair. There are two areas that should...

When the heater is being used the heater blower blows air across the heater core to blow heat on the window for you. The heat is supplied by the engine coolant circulating through the heater core. The use will remove...

Engine oil pressure may be below the requirement at idle. To determine that, temporarily install an external pressure gauge and verify that you have at least 5 PSI at idle, although you should compare against the pressure specification set forth...

Hi there. It really depends on what type of car you have and where you live. If you live in one of our service areas in the United States, one of our mobile mechanics can come to your location and...

There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or potentially...

Shaking or vibration may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below the normal...

Make sure you do not have a vacuum leak between the brake booster and master cylinder. Sometimes the seal does not sit good and will leak. If it is okay, and you hear a vacuum leak inside the vehicle, then...

The difference between these two oils is primarily the viscosity or thickness of the oil. Depending on the brand, there may be a number of other additives in play as well, however the most important component of the oil is...

Hi! A good place to begin is with a thorough visual inspection performed on your Mercedes. Squealing sounds under the hood frequently come from accessory belts. This can be due to age or a worn tensioner. That's one of those...

There are a number of "switch connections" that all have to be successfully closed/connected in order for the fuel pump relay to be energized. These include: whatever security mechanism may allow/disallow a "Start" sequence, the ignition switch itself, a Neutral...

Hello. Replacing a timing belt for that particular model of vehicle only requires that the passenger wheel be removed to access the lower part of the engine. This can be done with a regular jack and jackstands. The procedure itself...

You will need to have battery fully charged and then have charging system tested. If jump starting the car does not let the engine start then you may have a starter or theft system problem and would need further tests...

This code points to a problem in the throttle control actuator circuit. The ECU watches signals to and from the throttle body controls and reads the resistance in these circuits to make sure it tracks discrepancies in the signals; it...

Hello, thank you for your question. You should consider the vehicle to have about 15,000 km for every year. For a 2007 you may see about close to 150,000 km on the vehicle. This would be considered normal. Once you...

This is typically a sign that a bearing has failed inside the water pump. When the bearing fails it allows the shaft that drives the pulley to move around, and is probably what is causing the belt to be thrown....

Hello, thank you for writing in. The suspension and tires are so closely related that an issue with your tie rods would feel like a tire problem. The technician is correct about this would cause a vibration. Did they do...

If you see smoke get out and dial 911 a car fire can start very quickly and without warning in some cases. If there is no visible smoke and its just a nuisance smell, I would suspect something in the...

Just by looking at the photos, I notice the mileage is very low for the vehicles age. They say the door handle that is broke in picture is replaced. The clutch has been replaced. The seats look rough in the...