Popular questions

Question
Muffler is loud and the van jumps when in idle. When it jumps the muffler makes a puffing noise and smells.
This may be related to a failing catalytic converter or potentially a dirty or failing idle air control valve. The idle air control valve reads the air intake as it enters the motor and relays this information to the computer...
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Low oil pressure, trouble staying started, oil leaking
Hi Jordan. When you have a rear main seal leak, it's very difficult to repair without removing the engine. Low oil pressure is typically caused by low oil levels, but also a failing oil pump. However, it usually does not...
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How do I turn on the power mirror defoggers?
If your Accord is equipped with power mirror defoggers, these can be used to quickly defrost your mirrors on winter mornings. To activate them, just do the following: Turn the key to on. Locate the Mirror Defogger button on...
Question
Window not working
There are a few reasons why the window in your Honda Civic will not roll up or down. The issue may be as simple as a blown fuse, or something as serious as a bad window motor. There may also...
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Car needs a new coolant bypass tube
Ah yes, the infamous 3.8L coolant elbows, located on the tensioner. This is a very common problem, but I would still perform a cooling system pressure test to be certain that the elbows are leaking. This test pressurizes the cooling...
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White powder
I am not sure what the white power is but suspect it was from the chemicals used to clean the engine has caused some sort of chemical reaction on the metal parts of engine. I recommend having the engine cleaned...
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Transmission
Your car has an electronically controlled transmission, so whatever occurred will have left traces in the form of trouble codes in the transmission control module. These codes can be read and interpreted by a technician with the appropriate equipment. The...
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2002 GMC Envoy message displayed on message board, turn engine off now. What does this mean?
Hi there. The message could have came on for something that may have been active on the engine or transmission. If the light comes on again, then the computer (ECM) should store the events and you could have them read...
Question
Steering wheel hard to turn in 2008 Mercedes-Benz ML350
In many cases, loss of steering effort can be traced back to a malfunction in the power steering system. The belt, if equipped, may have broken and stopped the function of the system pump. If electronic, the power assist motor...
Question
Vibration from passenger side front wheel.
Occasionally, you will be able to measure enough play in the bearing that you can condemn it without further testing. You have to check the factory spec. to see what is allowed and will have to use a dial indicator....
Question
Aircon makes car battery flat
Hi there. From the description you have provided, the alternator may not be keeping up with additional load of the air conditioning system. This could be the result of, a loose/worn drive belt or a faulty voltage regulator which is...
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Car still overheating after parts replacement
Hello. The head gasket is a common failure on this engine. I see them fail all of the time. To verify this I typically do a block test first. This will usually identify a leak in the head gasket. Sometimes...
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Brakes, transmission, starter, & catalytic converter replaced, but not fixed
The exhaust would need to have been removed when the transmission was done and may have been installed back on incorrectly or is misaligned causing the popping noise. A popping noise is usually due to a leak in the exhaust...
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My car is smooth when it turns on and shakes while driving, what can it be?
Shaking of the vehicle can, of course, be suspension related so be sure to rule out faults there as a cause. If the engine itself is shaking or vibrating, the usual causes are problems with the motor mounts, engine imbalance...
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smoke/steam coming form dipstick 2009 VW GTI Turbo
Hello - it is normal to have a small amount of "fumes" exit the dipstick when it is pulled. The crankcase, is after all, a pretty violent place - oil and extreme temperatures combined with rotating hot metal. If you...
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Car revving without gas
Do these "excursions" in engine speed occur only when the car is in gear (driving on the road)? If you have uncommanded acceleration in park, or failure of engine speed to return smoothly to idle after speeding up the engine...
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My car is cranking but not starting - 2003 Chevrolet Malibu
Hi there. If you've kept the vehicle in storage for five years and it was not started during that time, it's possible that the fuel inside the tank has gone bad. Gasoline, like anything that is refined for use, has...
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How do i test the speed sensor for my car?
Hi there. I wouldn't doubt that the issues you are having are electrical. However, there isn't a general "test" for voltage on a dash cluster that is completed. Typically a professional mechanic would download stored error codes to determine if...
Question
My car engine shutoff while I was driving and I pulled over and tried to restart it but I wouldn't start up
It sounds like you have an electrical issue where the vehicle stalling may be from the charging system and battery lost connections. Your battery could be losing connection from relays clicking on and off, or the battery could be almost...
Question
Squeaking noises from front brakes when braking at minimal speeds Peugeot 307 2002 2.0 HDI. What could it be?!
The brake pads will cause this problem if they are worn down to the pad sensors or even if the material in the pads crack and act like a record needle and make a squeal noise on the rotors. I...
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Does the car have to be driving down the road for the computer to sense a Fuel line EVAP leak?
In order for the EVAP system to complete the drive test you need to be at a cruise steady speed with engine warm and no check engine light on. The actual speed is needed will be in overdrive above 45...
Question
Issue with Mazda 626, starts up then makes a grinding noise while in park
Your symptoms suggest that the starter solenoid contacts are burned enough to stick in the "Start" position (engaging the starter drive and motor), even when the ignition switch is not energizing the relay portion of the starter solenoid. The starter...
Question
Car Starts And It Shifts Gears , But Won't Reverse , And In Drive It Barley Goes And When It Does It Jumps And Jolts. Transmisson?
Hello there, the transmission being unable to shift into reverse is a common issue for vehicles as they age and increase in mileage. There are a few common causes for this malfunction. The most likely would be low transmission fluid...