Popular questions

Question
Lights flickering when the throttle is pressed and the turn signal is on.
The issue seems to be with the multi-function switch for the turn signals. The switch is shorting out inside it on the high beam selector which is effecting all of the lights. I recommend replacing the multi-function switch. If you...
Question
Battery blew cap off while driving. In a few miles was running rough. Replaced it. Now it will turn over but not start
You need to have the vehicle checked to see why the battery blew the top off. It could be from an overcharge condition that may have blown fuses or burned out a computer or module. The battery acid that may...
Question
My car inadvertently got coolant into the engine through a broken seal and . 1.5 gallons. What is the worst i can expect to happen
Hello, and thank you for writing in. With such dramatic failures and so many opinions, it is easy to become confused and worried. Checking the oil at this point will not tell you much. Any metal shavings that have come...
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Car shaking during start up while it is cold outside
You will need to make sure you are using the correct oil viscosity for the temperature outside. If you use the incorrect oil it may cause the VVT system to not work correctly and cause erratic running if one or...
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AC light on dash
GM has a TSB out for this issue. If the system is full, then the negative battery terminal needs to be disconnected to reset the climate control computer. If the system does not work after this, then gauges will need...
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Clutch problem in i20 Magna-Opt Diesel
Hi there, thanks for writing in. Actually, you should only be shifting gears with the clutch pedal fully to the floor. However, there may still be some air in the clutch hydraulic line, and the clutch needs additional bleeding. It...
Question
Faulty transfer case
Hello. I have some across this quite a few times on this truck. Most of the time, it is either a failing u-joint or it can be a transfer case slip joint that is binding. The drive shaft needs to...
Question
Air conditioning compressor
There may be an internal problem with the AC compressor. Look at the belt that drives the compressor and if it looks abnormally worn, the compressor may be putting extra resistance on the belts which can be a sign of...
Question
The car is misfiring and not picking speed
Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft...
Question
Engine damage after oil change
Your question poses two general issues, the first relating to auto mechanics and vehicle reliability and the second to your legal rights. Let me first deal with the first issue inasmuch as a resolution of that may make the second...
Question
My Car Isn't Getting Spark. I've Changed The Fuel Pump, Spark Plugs, Wires, Cap And Rotor
Hi there. I've encountered this situation multiple times. A no spark condition on this vehicle can be caused by a few different things, including the crank position sensor, the cam position sensor, the ECM, the coil, a fuse, and a...
Question
I feel a bit of hesitation when slowly rolling forward, but not when accelerating quickly.
Hello, thank you for writing in. The vehicle could be hesitating for several different reasons. The first thing to check would be the air intake system. This would include the air filter and air intake sensors. The sensors are best...
Question
I have a 2006 Dodge Charger Daytona. I was told I need new ball joints. Along with that the mechanic said it requires new control
The ball joints for the lower arm on your model are vended separately so you do not have to buy the lower control arm with the joint already installed. The reason they want you to change the entire arm is...
Question
2003 Honda CRV: Do I really need a new serpentine belt and aftermarket AC compressor?
Hi and thank you for contacting YourMechanic. There is no reason that the only way to replace the serpentine belt is to replace the compressor also - don't buy that! Now, if by chance the mechanic who is no longer...
Question
Car continually won't start
A .3 to .5A draw on the low voltage system is extremely high. The low voltage system draw should not exceed 80 mA with the vehicle in sleep mode. This should be fixed first before looking at the high voltage...
Question
2006 RR 4.4l got a P0628 fuel pump low voltage, both relays are good both fuses are good no voltage to signal relay to close and r
If the relay is not being powered, trace the circuit backward to the power source using the factory wiring diagram. You will find the interruption, or the faulty control module, if applicable, using that strategy. A similar procedure has to...
Question
Truck has occasional putter but not a misfire when giving it gas at an idle. 3 years without driving. Bad fuel mix or spark plugs?
Depending on storage conditions, ethanol content, and so forth, fuel will expire in 2 to 6 months. If fuel has sat in a tank for 6 months, and the car has not been used during that period, there is no...
Question
Bad u-joint making noise.
Hello. As a Jeep ages, many of the front end parts can wear out and become loose. From the description of the noise it sounds like you either have a worn out front shock or you may have a bad...
Question
MAP sensor.
No. The MAP sensor is more than a sensor inside the case, as it contains circuitry that may alter the output voltage as specified by manufacturer needs. If you need help getting the correct part, YourMechanic can source and replace...
Question
Misfire on my engine and I am getting an injector code 27. (OBD1)
Hi there. The injector output driver is not responding properly to the control signal. Check the wiring from the computer to the injector driver. If the noid light is flashing erratically, then the controller (computer) is not functioning correctly. You...
Question
I purchased a flood damaged car and replaced the engine and on the computer it's saying system running lean. What does that mean?
Hi there. When the computer says that the bank 1 or bank 2 is lean, it is referring that the cylinders do not have enough fuel to burn. Check the injectors and see if they are plugged up. Look for...
Question
noise
Hello, thank you for writing in. Do you hear the noises when you are in park but pressing on the gas? Or do you only hear the noise when the vehicle is actually moving? If the vehicle has to be...
Question
I disconnected the battery to clean the recepticles, then reconnected and went to start the truck.. now it won't start.
Hello. Thank you for writing in. There are several issues that may be contributing to your symptoms. The battery may be failing. If the battery is on its way out, it may be able to supply the needed energy for...
Question
My antifreeze in the resovoir looks milky and I open the radiator cap and the antifreeze began to rise a little and wasn’t as much
Your vehicle may be overheating. The best thing to do is seek an overheating diagnostic which will pinpoint the cause and then the necessary repairs can be implemented.
Question
How do I fill the cooling system in my 1994 C220 Mercedes
To properly fill your cooling system, you need to start with the engine cold. With the engine off, fill the radiator slowly until the level is about 1"below the neck. Leave the cap off and with the car in park...