Popular questions

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Tire making loud thumping/knocking noise
Hello. You may have a wheel bearing going bad or flat spot on your tire. I suggest that you have a technician such as one you can choose from YourMechanic perform a suspension evaluation on your vehicle to help you...
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Transmission shifting issues, flare/slip on 2-3 shift. 2002 VW Jetta
Hi there - the valve body on this transmission is prone to wear, especially for control pressure hydraulic circuits on high-mileage units like yours. If you did not replace the valve body with a rebuilt unit, and the control pressure...
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1995 Honda Accord - Failed emissions due to having 1500 of 900 NOx ppm. Is there an easy fix here? They are saying it will cost me
If you are producing too much NOX this means your combustion is running too hot. This is usually caused by the engine running too lean or the EGR system is not flowing enough to cool the combustion. You should remove...
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2004 acura mdx timing belt service: what components do you recommend replacing
Hello, thank you for writing in. When changing the timing belt, it is often recommended to change the water pump, chain tensioner, and the gaskets involved with accessing the timing chain. The price is vary greatly depending on what kind...
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Smoking under VW Touran at standstill
It is possible that an auxillary heater of some kind could be contributing to this issue. However, most of the time smoke is coming from the engine bay of your vehicle, the smoke is coming from a fluid that is...
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Lack of power when accelerating and jerky
It sounds like you may have a bad coolant temperature sensor that may be causing problems with regulating the temperature in the motor as well as impacting the air/fuel ratio and potentially the ignition timing controlled by the ECM. This...
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Gas usage high
Depending on the conditions, 25 miles per gallon is not too bad, especially in the winter. Gas companies are required by the government to change the mixture of gas in the winter to decrease vehicle emissions. When they make a...
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Speedometer and Odometer not working 2002 Mitsubishi Magna
Hello - the lack of speedometer and odometer function is most likely caused by a failure of the vehicle speed sensor (or the wiring to it). This sensor, and its wiring, would have to be tested with a voltmeter or...
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Misfire on cylinder 8
Misfires are caused by lack of fuel or the ignition system isn't providing the needed spark. At least these are the most common single cylinder failures. It is possible, all be it remotely, that you have a compression problem, but...
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My mechanic said I needed an alternator. He fixed the starter now My car is making this loud knocking noise, what could it be?
Hi there. I believe we answered your question earlier, but if the mechanic is telling you that you need an alternator, it's possible the noise and the power issue is related. The alternator, like many other accessory systems is powered...
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I drive a 2012 Nissan Altima. I was driving uphill yesterday but I noticed a strange sound
It could be that the automatic transmission is either slipping or that it is staying in low gear. The car has enough miles on it to be having that sort of trouble. It's difficult to say anything specific from this...
Question
How to fixed jumped timing on a 2005 kia optima
Your engine design is of the "interference" type. That means that if the timing belt was not installed correctly (or breaks when the engine is running) and thus the camshaft(s) turns out of synch with the crankshaft, the valves can...
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2004 lincoln ls waht makes the rear end sway
It sounds like you may have a broken or damaged sway bar or stabilizer bar. A sway bar or stabilizer bar is a steel bar that connects suspension components on opposite wheels. Its purpose is to combat body roll when...
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Tire rotation for all-wheel drive and low profile tires - 2015 Infiniti Q50 Sport
Hello. The recommendation for tire rotation is every 7,500 miles. I would simply rotate them at every oil change. Being that it is all-wheel drive, you need to keep up on this as you do not want much variation in...
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SUV has new brake pads and rotors. Making a grinding noise when I brake but, not everytime
This circumstance is not unusual and I suspect is often related to the use of non-OEM rotors and non-OEM brake pad material and also the failure to re-apply factory specified shims and/or appropriate anti-squeal compounds and lubricants. Unfortunately, once non-OEM...
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My car will not go into gear after being shifted from park to drive.
Hi there. Check the transmission and see if the cable is moving when the shifter is moved from the park position to the drive position. If the cable is not moving, then either the cable is broken or the shifter...
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A/c controls go in and out and now when i turn the car off and take the keys out, the lights are still on. Honda accord 2000.
Hi there: Most of the time, this issue is caused by an electrical relay that has been damaged. It's possible that during your radio swap, this may have caused an electrical issue with your AC system. However, it's also possible...
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Mechanic says I need a new alternator but I don't have any problems with car starting. Should I wait until there is a problem ?
The STS mechanic may not be as qualified as a Dodge trained mechanic. I cannot be sure but most if not all oil change only places do not employ master mechanics. I can understand the reasoning for the gaskets, hoses,...
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Loud bang and shaking starting car
Hello. It sounds like there is a broken engine mount or transmission mount that may be causing the banging noise that you are hearing. It is possible that something was damaged in the suspension system which could also cause a...
Question
Slow speed increase, check engine light on
Hello. If this occurred right after getting gas then you may have gotten contaminated fuel. If it has some water or some diesel in it then this will occur. Some of the time a fuel pump can fail after getting...
Question
Driving at 46 mph, SUV has resonance sound & slight vibration
Hi there. This is a common issue on this vehicle that GM has yet to fix. It is an issue with the calibrations in the computer to try and balance the power of the vehicle and the weight to get...
Question
Does a 1999 hyundai elantra have a fuel inertia switch, if so where is it located?
An inertial type fuel pump cut off switch was not used on the 1999 Elantra. However, there are other solenoid operated fuel cut off switches on the vehicle, in the tank area, that could account for the no fuel condition....