Popular questions

Question
EGR Valve or Mass Air Flow Sensor: Which is more likely for the poor startup and rough idling that I have been experiencing?
The codes do not necessarily implicate the EGR system or the MAF sensor as a multitude of other faults are as likely. Basically, the codes suggest there is too little fuel, or too much air, in the cylinder charge (the...
Question
A mechanic says I need tie rods, gave weird estimate I think
To perform an alignment, there can't be any "excess" wear in the suspension simply because the tolerances in an alignment are very tiny. If there is wear, as you try to adjust and set the alignment, the suspension simply moves...
Question
How many quartz of engine oil should be put in during a oil change?
If you have the 2.0L engine, and are changing both the filter and the oil, add 6.3 quarts of oil. All other engines on this model, that is the 2.4L and the 2.5L, require 5.0 quarts if you are changing...
Question
My ac compressor quit working in my 2016 vw jetta what could be the main cause for this being brand new?
VW has seen a lot of problems with these compressors and has issued a service bulletin on some of their 2015 and 2016 cars. There is a defective regulating valve that causes compressor failure. In many cases they are performing...
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How do i remove the alternator for a 2009 santa fe 2.7L ?
Hello, thank you for writing in. Replacing the alternator is fairly simple. With every make and model the exact procedure will vary slightly. The basic steps are the same regardless. The first thing to do is disconnect the battery for...
Question
Thumping sound from the right front end when I hit a pothole.
Hey there, thanks for writing in. "Thumping" is often associated with flat spots on tires or tire belt defects but if such were the cause in your case the thumping would be continuous. You are indicating the noise is only...
Question
Can Exhaust Fumes Get Inside My Car?
Yes, exhaust fumes can get into your vehicle in a multitude of ways. The first way exhaust fumes could get in your car is just by sitting in traffic with your windows down, especially if you're in traffic in a...
Question
Engine idle fluctuates
There are a couple of reasons your engine idle may run high such as a vacuum leak or a dirty or faulty idle air control valve. The idle air control valve reads the air intake as it is mixed with...
Question
2004 Ford Explorer stuck in 4x4 high
Faults in the tires and wheel bearing are not related to the failure to shift out of high. Wheel bearing service can be scheduled at YourMechanic's wheel bearing repair service page. Some reported fixes for failure to switch between high...
Question
No trailer running lights
Hello. The trailer could be wired wrong. It also could be a blown fuse or relay. There is a running light fuse under the hood and a relay behind the rear bumper. Either one being blown will cause your issue....
Question
ABS Light, DSTC light, and Check Engine Light came on randomly today and car won't start
Hello and thank you for contacting YourMechanic. The DSTC has been temporarily switched off due to high brake temperature. The system will automatically switch on again when the brakes have cooled. If the system has been switched off due to...
Question
The car turns off when shifting the gear to neutral automatically.
This is likely related to what is called a neutral safety switch. This is an electrical switch near your transmission that is designed to not allow the car to start when in any gear other than park. Occasionally, this switch...
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Fuel tank pressure sensor is bad. How do I check it?
Test the fuel rail pressure sensor, using a digital volt ohmmeter, as the engine is running. The meter should have a reading of 5-volts. If there is a 5 volt reading, then check the ground wire for a low resistance....
Question
Service engine light flashes when accelerating and driving rough
This is a common sign of a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...
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My car has been sitting for 5 months, it starts but when I drive it it sputters and stalls, why is that?
You may need to add fresh fuel and then see if it runs better. If engine misfires then you may have fouled plugs and or bad coils. have computer tested for misfire codes to isolate the cylinder that is misfiring....
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Car is jerking and then correcting itself while driving. Especially when getting off gas pedal and then when pressing again. Not
Hi there. In general, when this situation occurs, it's due to loose or damaged suspension components as you've described above and indicated were recently replaced. It's quite possible that one of the components has come loose and is the source...
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My car won't start after replacing the clutch.
Check the harness to the crankshaft position sensor as it is has a fused wire completing the circuit. When unplugging the sensor, the engine should not start at all. The only thing that can cause the engine to start with...
Question
The electric power steering system warning light is on and check engine light is on.Code P0607
P0607 is a code for a control module failure It may mean a control module failure or It may be set by low battery voltage or wiring harness problems. To have it show up on such a new car makes...
Question
low idle runs better when map sensor is unplugged boggs down
Hello. Unplugging a sensor to see if it will make any difference is an old-fashioned way to test a sensor on an engine. If the vehicle runs better without the sensor unplugged it most likely means that the sensor is...
Question
Toyota Camry is Leaking Motor Oil
Some of the common causes of oil leaks would include the valve cover gaskets, oil pan gaskets, oil filter, and oil drain plug. I would recommend having all of these parts checked by a qualified professional to determine the source...
Question
How do I turn on the fog light?
The fog light provides added visibility when you are driving in foggy or misty conditions. To turn on the fog lights, rotate the Fog Light switch (located on the turn signal lever) to the on position.
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My car shuts off when it stops
Hi There, It sounds like you may have a dirty or failing idle air control valve causing your engine idle to fluctuate and eventually stall. The idle air control valve is a small valve on the engine's intake system that...
Question
How does four-wheel drive lock mode work?
While your car will automatically turn on four-wheel drive when it senses slipping (if it’s equipped), you can also turn it on manually and lock it. This is helpful for situations where you need ongoing assistance to get out of...
Question
Car jumps revs then immediatly shuts off
Hi there. After reading your question, it appears that the problem you're experiencing is either caused by a problem with your fuel injection system or an electrical fault, especially since your car is 22 years old and has 134,000 miles....
Question
brakes/accelerator/steering wheel all locked up while driving
Hi there, thanks for writing in. This sounds like a tricky problem, there could be any number of causes. It could be the engine/powertrain control module was shaken over the bump and was damaged, causing it to stall the car,...