Q: Check engine light keeps coning on and going off at random, only problem shown is random misfire

The vehicle identification number, or VIN, for your car gives a lot of information about the vehicle. You’ll also need it for titling purposes, for insurance and in many other situations. The information contained in the VIN includes where it...

Hi there. Some coolant leaks can be hard to find and may only appear when the system is under pressure. If you are getting a hissing noise it is possible that you have a leaking hose, but most of the...

The rear view mirror provides added visibility out of the rear window. However, when driving at night, the headlights from other vehicles can reflect off of your mirror with large amounts of glare, which can decrease your visibility. The rear...

The first thing you'd want to do is change the PCV valve (https://www.yourmechanic.com/parts/pcv-valve) - the positive crankcase ventilation valve. They don't cost that much. Pray that it's that. If it is, then that means that it is sticking open, and...

The blower motor relay (https://www.yourmechanic.com/services/blower-motor-relay-replacement) should be labeled C1011 in the battery distribution box under the hood. The simplest way to test it is to see if any adjacent relays are similar and temporarily swap them. If the fuse and...

The first task is to find out what problem code is causing the Check Engine light to come on. Most auto parts stores will plug in a code reader for free (on a time-available basis) and tell you what code(s)...

The code P0685 (https://www.yourmechanic.com/article/p0685-obd-ii-trouble-code-ecm-pcm-power-relay-circuit-malfunction-by-valerie-johnston) refers to the main ECM (computer) relay has lost power. Check the main relay (https://www.yourmechanic.com/services/main-relay-computer-fuel-system-replacement) and see if its getting hot. A hot relay will disconnect to cool off and reconnect. If the relay is getting...

Hi there. In some cases, when you have acceleration problems after changing a transmission hose, the issue is related to either an obstruction in the transmission fluid lines or the torque converter not receiving or having enough transmission fluid (slipping)....

In the majority of vehicles, engine idle speed is controlled by an idle control valve (ICV). The ICV valve can fail or a faulty or blown fuse in other electronically controlled systems can cause the IAC motor to malfunction, leading...