Showing articles & questions for topic
Idling

This is usually caused by a bad connection from a main power source. On your Dakota, this would be a fusible link or fuse coming directly from the battery. The fuses will be in the power distribution center under the...

If I was diagnosing your Hummer, I would want to know if there were any diagnostic trouble codes (DTCs) stored in any of the computer modules. I would see if the Check Engine light was on and use my scan...

The very first thing to do when you experience power loss or surging issues (https://www.yourmechanic.com/services/engine-idle-speed-is-high-inspection), or interesting gauge readings, is have your vehicle scanned for diagnostic troubleshooting codes (https://www.yourmechanic.com/article/how-to-read-and-understand-check-engine-light-codes-by-jason-unrau). Your car can set these codes and not always illuminate the...

It sounds like your throttle body is dirty (https://www.yourmechanic.com/services/clean-throttle-body). You may want to check it and make sure it is not sticking. Check for loose connections within the system also. Your car may also be idling rough (https://www.yourmechanic.com/services/car-idle-is-rough-inspection) due to...

Hello there, The TPS can be a serious issue if the car dies like it did. I would not recommend driving the vehicle until repairs have been performed. There is no recall for this fault though there is a technical...

This may be related to a dirty or failing idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement). The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...

Hello there, thank you for asking about your 1986 BMW 635CSi. It sounds like you've checked all of the low hanging fruit. The previous owner may be right - some vehicles (only German ones come to mind) can develop a...

Hi there. This is a problem that comes up often on this engine. It is typically caused by a failing idle control valve or a dirty throttle body. If the throttle body is dirty then that will typically cause the...

Hello. Your car should be safe enough to drive home. The one risk of this may be that it could potentially leave you stranded momentarily, but most of the time even when this valve is not working properly, it will...

There are numerous potential causes for the problem you are having. One thing that comes to mind is a failed engine coolant temperature sensor (https://www.yourmechanic.com/services/coolant-temperature-switch-sensor-replacement) (ETC). The ECT does exactly what it sounds like - it monitors engine temperature. The...

Check the inlet air tube between the mass airflow sensor and the throttle body for cracks or loose connections. When you put the vehicle in drive it pulls the hose longer and when it's put in reverse it pushes the...

This is most likely caused by a faulty Idle Air Control valve (IAC valve). This valve regulates the speed of the engine's idle by creating a controlled vacuum leak in the intake manifold. It is also possible that there may...

Hello. This could be caused by a variety of things. It could be that your spark plugs or coil packs are misfiring. This means that the coil pack is not sending the proper electricity to the spark plug. It could...

Hello there, thank you for asking about your 1997 BMW 760Li. Your problem has many potential causes. It could be anything from a failed mass airflow sensor to a worn fuel pump. The first step is to retrieve the diagnostic...

Hello! I believe the problem is likely to do with the mass air flow sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-mass-airflow-sensor). When this sensor is at fault it will be sending a regular error inlet reading which will cause computer to incorrectly apply air fuel...

After some testing done to verify the EGR valve flow to see if the valve is intermittently sticking open causing the stall. This can be done using a scanner with the capability to open and close the EGR valve and...

It could be the spark plug (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-spark-plugs), ignition coil (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-ignition-coil), or coil boot causing the misfire. You may also have dirty fuel injectors (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-injector) that need to be cleaned. Have the ECM scanned to see if the misfire code is...

Although it is unlikely to be the cause, I would recommend checking your engine oil level. If your oil level is low, the engine will not be lubricated sufficiently enough to function properly and will therefore make knocking sounds as...

One of the main things that can prevent a vehicle from starting in the cold is the battery. Batteries for automobiles are rated by cold cranking amps. This measurement is the amount of amperage the battery can produce at zero...

Hello! I will be happy to assist you. On your particular vehicle, random misfires are commonly caused by things such as low fuel pressure, a faulty oxygen sensor, bad vacuum lines, or faulty air flow sensors; a broken or loose...