Popular questions

Question
My car does not accelerate when I throttle, instead it jerks back and forth.
Diagnosing throttle issues is very difficult to do without being on site to complete an exam. However, in some cases, this symptom is caused by a damaged or worn out throttle controller. Throttle Controller is the electronic version of what...
Question
Tune Up when? 1997 Oldsmobile Achieva
Hello - if your engine has not had a tune-up in the last 2 years, it's certainly a good idea, especially going into winter. Ditto with an oil change and coolant flush. If there are any other indicators (leaks, Check...
Question
Checking new alternator.
You should have a mobile mechanic like one from YourMechanic come to you so you do not have to worry about getting stranded on the road with a dead system. Have the engine light on inspected. by the mechanic to...
Question
My car's gas gauge jumps around
An erratic fuel gauge can be caused by a number of problems. The fuel sending unit in the gas tank can be bad/shorted. The gauge itself can be bad, or a short in the wiring between the sending unit and...
Question
I lost a rear set of tires for excessive camber in the rear end. I have since replaced rear brakes and both stabilizer broke
They may cause some sag in the rear suspension but if you word the inside of tires, then you have worn bushings on the lower control arms and possible weak springs and struts. Have the entire suspension inspected and have...
Question
After changing many parts for maintenance recommended by my mechanic, car has a bad vibration when accelerating
Hi Paul. Thanks for sending the question tonight. To be honest, when wholesale replacement jobs like you've described are completed, multiple issues can be missed, incorrectly installed or even have compatibility issues that can lead to a vibration. If you...
Question
Car intermittently won't turn over to start
This is most likely related to a fuel supply issue at start up. When you turn the key to on, your fuel pump is engaged and quickly (for a few seconds) primes the fuel system to get fuel to the...
Question
Every three months, catalytic converter and muffler must be replaced
I would start with checking the O2 sensor. This is what relays exhaust gas changes to the vehicle's computer. When this sensor is not working correctly, incorrect or misdiagnosed air/fuel mixtures are relayed to the vehicle's computer causing incorrect changes...
Question
Wheels not turning
Sounds like you have got some serious drive line issues, is your transmission automatic or standard? Some of the problems you could be having could be burned clutch, seized pilot bearing, the final drive being locked up, or a problem...
Question
Fuel pump stops and starts
It sounds like you may have either a poor connection to or from the relay, a poor connection to the fuel pump or potentially a fuel pump that is beginning to fail. When the fuel pump is beginning to fail,...
Question
Not starting
The most common cause of an no start with no spark is going to be the crankshaft sensor causing the no start. The vehicle should be scanned to see if there is an input from the crankshaft sensor to the...
Question
Car makes a loud noise when turned on and while accelerating
Hi there, All these symptoms point to a slipping serpentine belt. It needs to be replaced ASAP. Driving it further will damage your car further. The serpentine belt relies on pulleys and a tensioner to keep it tensioned. If any...
Question
Changed heater core climate control panel not working.
Hi there. For the lack of information on your vehicle, the best thing I can say is check the climate control switches on the dash for the heater operation. Turn the temperature switch from cold to hot and see if...
Question
My brake light has been on for about a week. Today my ABS light and my battery light both came on at the same time.
It sounds like a fuse may have blown for the throttle control. You should check and replace any blown fuses. The ABS light will come on with the battery light if the alternator is failing as the system voltage begins...
Question
2005 Mazda6 hard to start
Hi there. Since the Check Engine Light is on then I would typically need to scan the computer for codes to see what the computer is seeing as a fault. This is the best way to start the diagnostic on...
Question
Sequaling noise on light acceleration when the engine is warm
You should have the serpentine belt and belt tensioner checked and replaced as a set if it is the cause of the squeal. This is the most common cause of squealing. If you would like, a certified technician from YourMechanic...
Question
Can't press the gas and car won't stay crank
Hello. This may be a sign of a failing throttle position sensor. The throttle position sensor is a sensor used to monitor the throttle position of the throttle plate inside the throttle body in relation to your foot position on...
Question
I cannot get the fluid out of the calipers.
Your brake system (which includes ABS) has check valves and accumulator chambers between the master cylinder and the calipers. It will be necessary to use a pressure bleeder to overcome these "restrictions." Gravity flow or a vacuum bleeder at the...
Question
Brake pedal goes soft
I have seen this before. It is usually caused by an internally leaking master cylinder. The master cylinder is where the pressure for the entire brake system is developed. If it leaks internally, your pedal goes down, if you release...
Question
Serpentine Belt broke How do i tell if its the Altenator
A lot depends on *why *the serpentine belt broke. If the belt broke after 120,000 miles simply due to age, that's fine, but if it broke because one of the rotating elements - the tensioner, pulleys, alternator pulley, and so...
Question
Starting problem - 2005 Audi A4
This is a common sign of a failing starter relay. This is a unit that sits near the starter and directs power from the battery to the starter allowing it to engage the flywheel when you turn the key. When...
Question
brake noise at low speeds
Hello. Thank you for writing in. Typically minor noises from the brakes when the vehicle is moving slowly is normal. Brake dust and dirt is one of the most common. Eventually this debris is rubbed off by the brake pads...
Question
4 wheel drive will not engage.
Hello. There appears to be three different locations for the control module depending on the chassis. The 4wd control module will either be found behind a kick panel on the passenger side, inside the dash, accessible by opening the glove...
Question
Car reluctant to accelerate as if not getting power
Hi, thanks for writing in. Let me start by explaining one of the strong possibilities concerning the misfiring. When the EGR valve malfunctions, the engine cylinders can combust prematurely. The computer will then detect the issue and label it as...