Q: Rad fluid under my car

The keyless ignition system allows you to turn on your vehicle without a key, simply by using the remote keyless entry (RKE) transmitter. If the transmitter battery is dying, however, the keyless ignition system will not operate normally. When this...

The ignition module on the fender should be looked at to see if it has ever been replaced. These modules on the fender go bad all the time. Try to disconnect and reconnect the connection to the module. Test for...

Hi there, thanks for writing in. In short, yes, a crank position sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-crankshaft-position-sensor) that is damaged or out of alignment can cause the symptoms you are describing above. The crank positioning sensor monitors the position and rotational speed of...

Hello. This may be related to a faulty idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement). As you may know this is a unit that monitors the air intake into your car's engine as it is mixed with fuel. When this is not...

Hey there. This may be some kind of fuel supply issue. When you turn the key on, the fuel pump should come on for a brief second pressurizing the system. When you turn the key, it should then maintain this...

Hello - the first thing to check is for problem codes, whether the Check Engine light is on or not. Checking for spark during one of these "warm, won't start (https://www.yourmechanic.com/question/car-won-t-start-on-a-hot-day-by-wenceslao-n)" conditions in the next step. Your symptoms are likely...

Hi there. Check the transmission fluid level and color. The fluid should be full when the engine is running at either cold or hot conditions. Plus the fluid should be red in color. If the fluid is dark red in...

Hi there. Is the check engine light on? If so, retrieving the codes is the first step to properly diagnosing the condition. It does sound the there may be an oil control valve concern that could be causing the shaking...

Hello, There are a few things that can cause the car to jerk like this. One of these is a dirty or faulty 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...