Popular questions

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My car is jerking for an unknown reason
Hey there. This may be a sign of a failing transmission control module or low transmission fluid. The transmission control module (TCM) helps regulate fuel efficiency and power while storing information about the transmission system in its memory. A faulty...
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Car shakes and hesitates upon acceleration.
A weak battery will cause all of the electronics to fail. If this was the case, you would have hard steering and radio malfunctions as well. There are quite a few components that could cause poor acceleration. You will want...
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What Causes Cracks and Leaks on the Exhaust Manifold?
The exhaust manifold is designed to route exhaust gases away from the engine and into the rest of the exhaust system. A cracked exhaust manifold not only results in noise, but can also cause engine performance problems. This is because...
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The only way I can deactivate the alarm at this moment is by turning on the car.
Hello, thanks for writing in to YourMechanic. Most cars support a "reset" mode for the alarm that works as follows: close all doors and lock the car with the key in the drivers door. After 2-3 minutes, unlock the driver...
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Vehicle is difficult to start sometimes; Sounds like it's about to stall when at idle
In order to isolate the hard engine start the first test will need to be a fuel pressure and leak down test to see if the pressure is within specifications when the key is turned on and the pressure stays...
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Alternator or Battery?
Greetings! This definitely sounds like you may have an alternator beginning to fail. As you know, the alternator is responsible for charging the battery. The rate at which this happens is correlated to the engine RPM's as the alternator turns...
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overheated manifold
Hi there. This seems unusual for a vehicle with 22,000 miles, assuming, the engine is not overheating. Assuming, the Check Engine Light is not on, leads me to believe the vehicle computer (ECM-engine control module) is not recognizing the fault....
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hello Brandon my name is Marie,I have a 2005 pontiac bonniville gxp Im having crankshaft issues and oxygen sensors
Hi Marie: With regard to the code P1372 that was downloaded, there are many potential malfunctions that will cause P1372 to set in addition to the crankshaft position sensor itself being faulty. And, if the sensor itself is suspected as...
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Steering wheel won't turn
It would seem that you have just thrown off the power steering belt. The belt may have come off due to tensioner, or idler pulley failure. You should have all the pulleys and tensioner checked to see if one, or...
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Car stopped randomly and didn't drive afterwards
Hello, thanks for writing in. The computer will go into a failure mode and may not allow the electronic throttle to open if it detects a major computer or sensor fault. There can be many possible failures that will cause...
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Have a couple of solenoid codes and a PO1870 code. is it worth fixing?
Hello, Code P1870 relates to the transmission slipping as you describe. This code can be set off for a few reasons such as towing a trailer as this puts additional stress on the lockup function of the transmission. This may...
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Check Engine light repeatedly lights up no matter what
There is an original equipment manufacturer (OEM) campaign 14515b that is calling for the chassis control module. The module has a problem that it has corrosion internally causing random check engine lights and possible engine stall or fail to start....
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power steering is leaking / I have the pump/ pressure hose / belt
Any rubber component on a vehicle system is typically leak prone after about a 6 year lifetime particularly, for example, if you break the seal that a rubber hose in a power steering system makes to a nipple (on pump...
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Burning oil
Hi there. The engine has valve guide oil seals that prevents oil puddling up onto the valve and allowing the valve to suck in the oil. The valve guide seals are leaking too much and causing excessive oil to enter...
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Hesitation when the 1999 Honda Civic Sedan goes downhill
Going downhill? That's interesting for this. Normally, they get problems when you are going uphill. If it's hesitating going downhill and it's not doing it when it goes uphill, unfortunately on that, if you have automatic transmission, it can be...
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Brake fluid leak
It sounds like you may have a bad wheel cylinder. Unfortunately, wheel cylinders on drum brakes have rubber seals that will deteriorate over time and will not seal and will leak. I would recommend having a technician come out and...
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Is it safe to Rev a car engine
Hello. It is perfectly fine to rev the engine in your car as long as you are not over doing it or holding it at a high rpm for long periods of time. If the engine is functioning normally and...
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My car keeps shutting off
Hi there. From the description you have given, the charging system needs to be inspected. First, the battery needs to be charged and load-tested. Assuming the battery tests good. The battery terminals are clean and tight. From what you described,...
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Battery light on dashboard?
The noise and burning smell is most likely from the alternator. Have the battery checked to make sure it is okay. Once that is done, check and replace the alternator if necessary. If you need some help with these checks,...
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Low tire pressure light is on all the time, even after adding air to the tires
The tire pressure monitor requires a good signal from each wheel air pressure sensor. These sensors communicate with the tire pressure monitor and will send the tires' air pressure. The tire pressure sensors are part of the valve stem on...
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My Mazda infotainment system's button is pushed in how can I repair this at home?
Remove the dashboard cover around the infotainment system so you can get to the front screen. Then you will have to remove the system from the dash to take it apart. Be careful, if you vehicle is under warranty and...
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Car feels sluggish
Hi there: Once your vehicle starts, the job of the battery is pretty much complete. The alternator is what powers vehicle systems while the engine is running; which is possibly what's causing the battery to drain, and the engine to...
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Camshaft Position Sensor Bank 1
Hi Taylor. Thanks for contacting us today. Without knowing the symptoms your car is displaying, it's hard for us to give you an accurate suggestion here. I've always believed that if one sensor has failed or is faulty, others will...
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A/C stopped working
I would suggest checking the flap vents inside your vehicle's air conditioning ducts. These vents open and close the direction of air flow. If the rear vents are working correctly, then it is likely not the A/C compressor or blower...