Popular questions

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Loud Noise when braking at high speed
Hi there. If the humming noise is a high pitched hum, or more of a consistent squeaking sound, it's possible that it is caused by a build-up of brake dust on the brake rotors. In most cases, this is not...
Question
The car turns off suddenly, no check engine light
Hi there. If the vehicle is just randomly turning off like this, it is almost always caused by a bad crank position sensor on this engine. This is very common and it will not turn on the Check Engine Light...
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I had p2096 and 2196 codes. I replaced the upstream o2 sensor. The p2196 went off for a while but the 2096 remained.
The two codes indicate that the air fuel ratio in the engine is off. In your circumstance, the short and long term fuel trim values should be read and evaluated using a real time scan tool as that will help...
Question
Check Engine code p0016
Hi There, As you know, code P0016 relates to the camshaft position sensor. It sounds like the sensor may not have been replaced or is still producing the same problems that one typically will produce when it is not working...
Question
Replaced brake pads/rotors on 2013 ford fusion. Error messages when tried to take out of service mode.Now won't start/dark display
Hi Dan. Thanks for reaching out today. Brake fluid can indeed cause communication errors with ABS sensors, so that might be (one) cause of this issue. However, it's also possible that the battery has gone dead (by coincidence as you...
Question
Car won't start key turns and lights dim when it cranks. I just don't hear a buzzing sound from the fuel pump when turn key to on
Code U1100 signifies a communications error which is either a module fault or a deficiency in the wiring harness between communicating modules. There's a possibility that a dying battery is a cause of such a code (and a cause of...
Question
Wheel studs breaking off when changing tire
Hey there: Thanks for writing in to YourMechanic.com. Breaking a wheel stud is commonly not caused by the way you're removing them, or the tool you are using. Lug nuts are supposed to go onto a stud smoothly, and come...
Question
Oil leaking into spark plugs galley, car won't start
If you found oil has entered the spark plug tube galley then the oil may have shorted out all the coils and plug wires causing the engine no start. The oil is getting in the galley from a leaking valve...
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My car won’t start. There is a red flashing light, car with key symbol. No noise is made when I turn key. Just had it checked
You should not have two programmed keys on the same keychain. If that does not work then you have a problem with the anti-theft system or the key programming. The system can only be programmed using the factory level scanner....
Question
Car won't start after overheating - 2013 Chevrolet Cruze
Hi there. The main issue that occurs when an engine overheats is that excessive coolant sprays on critical electrical components and reduces the vehicle's ability to start after it overheats. However, in some instances, if the engine was damaged due...
Question
2009 Dodge Journey check engine light blinking
Your engine is misfiring. When the check engine light starts blinking, that means the misfire is severe enough to damage the catalytic converter. As for the ABS light coming on when you hit a bump, that's probably due to loose...
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Car wont move even in neutral.
Pull up on the parking brake to see if the brake feels loose like the cable has stuck on. Your brakes may have moisture in the brake fluid and it may have froze inside the brakes locking them on. You...
Question
Will a 2001 dodge diesel motor change out with a 2005 computer and all the components?
Changing the engine will determine what type of engine you have. If you have a CPP 24 valve Cummins engine, then the engine will swap just fine as they fit the 1998 to 2005 models. However, if your vehicle requires...
Question
Rain water getting into the car
The water leaking into your front floor is most likely coming from the sun roof. The sun roof has two water drains. Each drain runs next to the windshield, inside of the left and right side pillars, called the A...
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Do I risk a car fire? I have a small oil leak in my car.
There is a very small chance that a slight oil leak would cause a complete engine fire. The oil that is leaked onto the engine will burn, and cause smoke as the result, but this is not the same as...
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When I'm driving and come to a stop, the rpm gauge goes up while I'm braking causing the car to jerk sometimes.
Hello. This is a common sign of a failing throttle position sensor. The throttle position sensor (TPS) is a sensor used to monitor the throttle position of a vehicle. The sensor is usually located on the butterfly spindle/shaft so that...
Question
where is the on/off switch for the passenger airbag in a 2014 lexus is 250
Hello, thank you for writing in. The passenger seat airbag is activated similarly to the seat belt light, by weight when someone sits in the seat. The sensor is located inside of the seat frame and will only turn on...
Question
Why does my truck start then overheat on shut off after 10 minutes of driving
Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat, a clogged radiator or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant...
Question
fan runs at high speed when car it turned on.
Hello there, you have a few different faults with your 2000 Mercedes. Your car's fans have two speeds, low and high. The High speed setting should only be on during heavy load and high temperatures. The fans should shut off...
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When I speed up my service engine light flashes.
Hi there. If you engine is having a P0300 code for a random misfire, check the camshaft position sensor for any moisture and if the harness has any broken wires. If the sensor looks to be good, then remove the...
Question
Check charge system. I have a new battery new alternator and starter. It's still saying this and dying after Be drove
Hi there. What you are describing is similar to a parasitic battery drain. This happens when an electrical component or accessory is continually drawing electrical power while the vehicle is turned off. These issues can be very difficult to diagnose,...
Question
Why do I keep getting a P0101 code in my 2011 Nissan Sentra
Hello. If you are continuing to get the same code then the engine needs to be checked first for any vacuum leaks. The slightest leak in the intake tubes or any of the vacuum hoses or gaskets will cause this....
Question
My car won't go into reverse it's like another nuetral gear. I don't know what to do
Hi and thanks for contacting YourMechanic. Check your brakes to ensure that they are in top shape and adjusted correctly. Check the parking brake to ensure that it is completely disengaging. If you have a column shifter, place the shifter...
Question
Trouble code P0607 Engine Control Module & P0138 Oxygen Sensor Circuit
Replacing an engine control module should never be a first step. There are a number of other problems that can give a PO607 trouble code. First the battery voltage should be checked, and if the engine is running, the charging...
Question
How many oxygen sensors are there on a vehicle?
Your vehicle and engine will have four O2 sensors. There is one O2 sensor in each exhaust manifold and one after each catalyst. This is a diagram of your exhaust system to see O2 sensor locations.