Popular questions

The cause behind diagnostic trouble code P0171 is easiest to find by looking at the secondary firing patterns on the Bank one cylinders. That will confirm if the too lean condition, that has caused the code to set, affects all...

Hi there. The Check Engine Light should stay illuminated until the vehicle is running. So, your light being on while cranking is normal. However, if the light was on before when the engine was running, diagnostic trouble codes may be...

Hello. It sounds like you may have some problems with the seat on you car. Sometimes the motor that actuates the seat can burn out. I would recommend having a technician from YourMechanic come out and inspect the seat, and...

Hi there. The fuel pump could have failed due to crystallization of the fuel if there is too much water in the fuel). I recommend putting a treatment of water separator in the fuel tank and let it sit for...

If the AC is only blowing hot air then most of the time it is because the AC compressor is not turning on. The compressor will not turn on for a number of reasons, but the most common is low...

This may be likely related to a fuel pump issue or lack of fuel pressure. Low fuel pressure is something that can cause your car to struggle to idle or even stall when driving. This will also cause the Check...

Hello. Most of the time when this car suddenly stops like this it is because the timing belt broke. If it has never been replaced then this is very likely. It can also occur if the ASD relay failed or...

When you say "not working well", it sounds to me as though the actuator could be getting weak, since this door gets locked, and unlocked the most. I recommend having the lock actuator replaced, after it is checked. I recommend...

There are a few variables to account for when a clutch goes out. The clutch itself needs to be checked to see if it's the only problem as well as the transmission. I recommend having the clutch system checked throughly...

Hi there. Check the Internal Control Pressure Sensor (ICP) and see if its not working properly. If the ICP is working fine, then it is possible that the inner lining in the fuel tank may have come apart and has...

It is possible that you may have a leak somewhere in the AC system. However it is normal that every few years your air conditioning refrigerant will need to be serviced, as the refrigerant is a gas and does slowly...

Hello, thank you for writing in. When you are in this type of position the best thing to do is get a third opinion. If you do not have that option for one reason or another, you will want to...

Hi. The vehicle's suspension system will have to thoroughly inspected and repaired, a vehicle alignment will also have to be performed after repairs. You may want to enlist the help of a mechanic to inspect the suspension and access the...

Hi there. An inspection of the radiator for white residue will be necessary. Radiator leaks generally occur where the plastic side tanks are mated to the sides of the aluminum radiator core. If this is the case, the radiator will...

From what you've described, you may have a bad crankshaft sensor. You'll know if this is the case once you run a scan test to get sensor data. The sensor may not be sending a crankshaft signal to the computer....

Hi. If the engine will turn over and try to start, then it may be a problem with fuel pressure or one of the engine sensors. It is common for the fuel pump to fail as well as the crank...

Hi there: Typically a dashboard warning light is an indication that the ECU has detected a fault of some type of an electrical or mechanical component. If the electric power steering light is illuminated, it's likely that one of the...

From what you've described you'll need to remove the spark plugs and have a compression test done. It sounds like you may have bent the valves in the motor when the timing belt broke. I'd suggest having this looked...

Claimed by Jeff Engstrom

Your description suggests you may have a bad grounding problem, a short somewhere, or potentially a failing voltage regulator. The voltage regulator regulates the power charged to the battery by the alternator to ensure that the battery is not over...

Hello Sarfaz. Firstly, a few things I would check is your radiator cap, double check it for leaks. If it looks okay, then the problem may be more serious. A bad radiator cap can cause coolant to slowly leak out...

The vehicle may need to have it's computer reprogrammed to improve the shifting performance of your transmission. The manufacturer has a technical bulletin available to reprogram the system correctly for your particular vehicle. It all depends on what exactly is...

An engine failure is definitely not good news. Engine failures can be caused by numerous things (e.g. low oil pressure, contaminants in the intake, etc.). Thankfully the 2007 Optima is covered by Kia’s 10 year, 100,000 mile power train warranty....