Q: Car won't start

It appears that you may have a couple of different issues going on with your Toyota. Addressing the coolant leak first is very important, as if it is left untreated, the engine can overheat and serious damage can occur. Coolant...

It sounds like you may have two separate issues at play here. If the catalytic converter (https://www.yourmechanic.com/services/catalytic-converter-replacement) is cherry red this means it is very hot which is usually a result of a very rich running condition and is most...

Hello. Though this can be caused by a transmission failure, most of the time it is either caused by a cracked flywheel or a failing timing chain (https://www.yourmechanic.com/services/timing-chain-replacement). I usually try to narrow down the location of the noise as...

If your car has not had a major service that has involved replacing spark plugs and all the filters that might be all that you need. Mercedes recommends replacing the plugs at 100 k but I prefer to do it...

Hi There, This may be related to a faulty throttle position sensor or potentially a dirty or failing mass air flow sensor. The mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) monitors air intake as it is mixed with fuel prior to being...

Hello - sounds like the problem is getting worse! Current-day radiators (https://www.yourmechanic.com/article/how-long-does-a-radiator-last) utilize plastic end tanks, assembled on aluminum cores(the shiny fins running across the front of the engine compartment). This assembly inevitably starts to leak over time. I recommend...

Hi there. Typically when you make an aftermarket intake improvement, the next evolution is to find a way to increase fuel flow or ignition timing to allow fuel to burn more efficiently within the combustion chamber. This can be completed...

It sounds like the idle air control valve or the mass air flow sensor may not be properly reading the air intake volume, resulting in the stalling as you describe. This may also suggest there may be a bit of...

Hi Brandon. Thanks for sending in the question today. Typically, when you replace a transmission, throttle body or other electronically operated and controlled system, resetting the TCM or ECU to link correctly with the system is a part of the...