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Hi there. Poor electrical grounds can create unusual electrical problems. The corrosion at the negative battery terminal is most likely, the result of a leaking battery and should be replaced. Not all code readers are German car friendly. I recommend...

Unfortunately, it sounds like you have an internal transmission problem that will require the transmission be rebuilt or replaced. A transmission that won't go into any forward gear almost always indicates an internal mechanical problem as opposed to an electrical...

Hi, thanks for the question. This is a serious problem and you should shut the car off immediately to risk damaging your transmission further as it may already be to late. The loss of fluid and your car not moving...

Hello. There are several things that can cause this. It can be caused by a bad ground connection or an issue with the circuit breaker that supplies power to this circuit. You would need to used a voltage meter to...

The battery may not be able to hold a charge because if the battery is dead. In order to check the charging system you will first have to have the battery charged and tested to see if battery needs replaced...

Hi there: A vehicle vibration while the stopped can be caused by multiple issues, ranging from improperly running engine due to a vacuum leak, ignition system or fuel system issues, or faulty or loose motor mounts. In regards to how...

Hi there. The code P0420 means that the catalytic converter is below threshold and cannot burn off any emissions in the exhaust stream. The O2 sensors have pickup this fault and put the engine into limp mode. As for the...

The transmission in your Kia Soul is a 6 speed automatic and is not a continuously variable transmission (CVT). The harsh downshifting is not normal and complaints are in the NHTSA database from at least two other consumers regarding this...

If you are interested in a transmission overhaul, or installation of a new (dealer supplied) or professionally rebuilt transmission, YourMechanic professionals in certain locales can assist with that. Please simply inquire based on your locale. As far as the cost,...

The coolant could be low, the thermostat could be plugged up or sticking, the radiator could be plugged up restricting the coolant flow, the water pump could have failed, or the head gasket could have burned causing the engine to...

Hi...Diagnostic Trouble Code P0016 has many causes other than a failed camshaft position sensor. Other possible causes for Code P0016(https://www.yourmechanic.com/article/p0016-obd-ii-trouble-code-camshaft-position-a-camshaft-position-correlation-bank-1-by-jay-safford) to set include: the camshaft timing is wrong because the timing chain jumped teeth; the camshaft phaser is out of...

Hi There, The master warning light in the hybrids generally refers to the hybrid battery control module. This module monitors the charging of the high voltage battery (main hybrid battery) in these vehicles. When this control module is not working...

Hello, and thank you for writing in. When multiple sensors and warning lights appear to fail, the culprit is typically electrical. You may want to start with a basic charging system test, which would include testing the battery and the...

Hi, there are 4 oxygen sensors on this engine. For each cylinder bank, there is one O2 sensor just in front of the catalytic converter, and one O2 sensor just after the catalytic converter - at the front of the...

The symptoms you describe suggests that the linkage between the shifter and the "gear position indicator" (PRNDL) is no longer correctly connected, and possibly the neutral safety switch/transmission range selection sensor (don't know which since you did not indicate the...

If you believe that your VCT solenoids or cam phasers are inoperative, I would recommend having them tested and replaced as necessary by a qualified professional in order to resolve this issue. If these parts have truely failed, it is...

Hello, thank you for writing in. Is this something that has been an issues since you obtained the vehicle? Did this happen suddenly, or possibly gradually over time? If the tires are brand new and properly inflated, the ride should...

The navigation system in your vehicle is a common failure. If this occurred right after a battery change then a code needs to be put in to get it going again. If the system is not turning on at all...

Hello. P2107 is the code for an issue with the vehicle's throttle control module processor. Basically, the computer has detected an issue with the vehicle's electronic throttle body and has put the vehicle in safe mode. The throttle body...

As for the Oil Pressure Light, the oil pressure is measured by a sensor that is called the oil pressure sending unit. This sensor threads into the engine block and is exposed to oil on the side that is threaded...

If the illumination of the check engine light is truly "related" to the fuel quantity, the issue might be a fault in the EVAP system. One way to find out for sure is to download the trouble code(s) that are...

Hello, thank you for writing in. There are several issues that would cause issues while reversing and in drive. Start by having the vehicle scanned for diagnostic codes. This can be done at most automotive parts stores, or it can...

Hi there. Sounds like the heater core has a leak and needs replaced. I recommend removing the heater core hoses to the heater core on the firewall in the engine compartment and routing the hoses together until you replace the...