Popular questions

The idle air control valve is common for causing a rough idle in many cars, but it sounds like you have already corrected that. Another thing you may also want to check is the crankshaft position sensor. A crankshaft position...

This is a fuel supply problem. Fuel pressure will be the key indicator for which component of the fuel system isn't performing as needed. Check to be sure the fuel pump relay is good, and the fuel pump is running...

Hello. It sounds like your transmission either did not get completely full of fluid after the service or it is leaking fluid again. To check the transmission fluid, start the car and leave it in park. Next pull out...

Hi there. This sounds like the engine timing is off. Check the camshaft sensor and crankshaft sensor to see they are working. The computer has the engine in limp mode to keep the rpm's from going up. If the timing...

Hello, thank you for writing in. The engine will have several mounts. You need to determine if you have to replace all of them, or if you are just replacing one. Most of the time if one is going out,...

Hello. It sounds like you are possibly having one of two different mechanical problems. The first includes the wearing out of the linkage between the transmission and the shift knob. The vehicle must read that the shifter is locked in...

Hi and thanks for contacting YourMechanic. When the Check Engine Light flashes, it means that there is an intermittent problem making the light flash on and off. When the light flashes, it is best to pull off the road and...

Hello, thank you for writing in. There are so many different reasons why the vehicle would stall, it is impossible to say what the issue is without an inspection. If you have not scanned the vehicle for diagnostic codes, you...

It doesn't sound good. Loud noises associated with a power loss could be pointing to serious engine damage. You should stop driving the car now and get somebody to look at this thing to make sure things don't go from...

Once the car engine is completely cool, I would check the coolant level in the radiator and the reserve tank. If the level is low, you may have had a sudden leak of coolant. In that scenario, the white smoke...

This is a common issue. My first instinct would be to look for a vacuum leak. Air going into the engine is metered so that the ECM knows how much fuel to add for a correct mixture. If you have...

The best thing to do is get a coolant pressure test and hook it up to your radiator or reservoir and pressurize the system to 15 psi. If there is a leak, it will appear under a pressure. If you...

Hi there. Check the camshaft position sensor and see if its plugged in. If the sensor is plugged in and the engine will crank, then the camshaft could be out of timing and needs to be reset. If the engine...

Hello. By the description of your problem, there can be several causes. Make certain that your battery is in good condition, and that your lights and accessories come on normally. If your lights dim when you try to key start...

If your vehicle has rust, it should be covered by Nissan’s warranty for 60 months with unlimited mileage. This will require a trip to the dealer for inspection. The dealer may need to take pictures and submit them to Nissan...

The brakes in most cars and light trucks should last at least 24,000 miles, or about 3 years, before the brake pads in the front brakes get worn down (the front brakes usually get worn out first as they take...

Hi there. Your vehicle does have the CVT transmission in it and color varies by brand of CVT fluid used. The maintenance interval for that transmission is 60,000 miles and should be kept regularly to prevent know CVT transmission failures....

Hi Beth. Thanks for contacting us today. The battery is responsible for supplying power to initially start the vehicle. However, it's less than likely that a worn battery is the reason why the engine has difficulty starting. In most cases,...

Hi there. It seems that your vehicle has multiple malfunctions that are happening at the same time. The idle air control valve has a fault, evaporative emission system has a large leak, the gear ratio is incorrect, and knock sensor...

If the headlight circuit uses a ballast, or other control circuitry, the output of the circuit should be tested. If power to the bulb is verified, and is within the Factory Service Manual specification, then the bulb is defective. If...

Hi Kenney. Thanks for writing in to YourMechanic.com tonight. Usually the type of noise you are describing is caused by wheel bearings that are wearing out. The rear brakes are hardly used on your Corolla, but it is possible that...

If they all stopped working at the same time, that raises the possibility of a "common" failure such as a circuit opening relay, fuse, fusible link, common ground, and so forth. Note though that if a "fuse" blows, it's not...

Hello there. Thanks for writing in about your 2001 Mercedes CLK430. There are a few potential causes for this. Most common would be a fuel pump, battery, battery cable, starter, or ignition switch. Any of those parts could be intermittently...

Hello, without hearing the noise its hard to make a recommendation. If you hear a rattle sound it could be a loose bracket or loose bolt. If you are experiencing a clunking sound, you might have something loose in the...