Popular questions

Hey there. This sounds like the starter or starter solenoid has failed. Given that jumping the battery does not work, it is more likely the starter solenoid. Have a professional mechanic, like one from YourMechanic, diagnose the starting problem in...

The speedometer receives a signal from the vehicle's speed sensor. A malfunctioning speedometer is often connected to some malfunction with this sensor, or the vehicle computer. Have a mechanic, like the experts housed here at YourMechanic, inspect these systems for...

Hi there. There could be a few things that could be going on. Either the battery was low on a charge or low on water and froze up causing the vehicle not to start up, or when the oil change...

Hello. Most of the time this is caused by a bad idle control valve. When it fails it binds internally and causes the computer to have trouble controlling the idle. I have also had a lot of issues with the...

Hi there - yes, the "D" unit is an updated steering rack ("F" updated models are already available, so the updates continue). However, remember that this is electrically power-assisted, and there is a software component to the equation. If you...

Hi there. Check the locking pin to the steering column shaft and make sure that it is locking to the input shaft to the rack and pinion gear set. If the lock is engaged and the shaft is coming off...

Hello. From what you describe it would appear that your vehicle is running rich, which can be caused by a wide variety of issues. A few common causes are a faulty fuel pressure regulator, leaky fuel injectors, a bad fuel...

If you have a valve cover leaking oil onto the spark plugs then it can cause a misfire. This does not mean the leaks are the cause but a possible cause. I would recommend having a mechanic like one from...

The excessive fuel condition is from the exhaust regeneration system malfunctioning and should be diagnosed following updated diagnostic procedures for the check engine codes received. Follow technical service bulletin 09-10-02 for an updated procedures directive.

The brake booster is supplied vacuum from the engine and if it is leaking vacuum when you push the brakes, then the booster may need replacement. I recommend having a mechanic diagnose the vacuum booster for the brakes and also...

This may be difficult to diagnose without knowing which fuses were moved around. There are a number of fuses that could cause the car to not start if removed or switched. There is a battery power fuse (30 Amp), an...

You can activate and deactivate the Auto Lock and Auto Unlock features separately from one another on your car. You can also use a number of different methods to do it. Here’s what you should know about using the keyless...

The first step in dealing with bad gas is removing it from the fuel system as quickly as possible. This will help prevent further damage to any of the fuel system components. To do this, it will require that the...

Hi there, thanks for writing in. I'd be happy to try to help. I'm curious to know if other symptoms are present before isolating what's going on. The truck shutting off can happen for a variety of reasons. When this...

Check the Steering Lock Module for faults. This component is tied into the vehicle security system (including your ignition key), and appears to have either failed or is not sync'ing correctly with the key and security system. A professional mechanic,...

You will need to have the computer tested to find out what codes are stored in memory and then have those codes tested to find out why the check engine light and EPC light is on. A mechanic like one...

The Check Engine Light coming on was an indication that there is a problem. Did you notice high temperature or if the engine was overheating? If there were no indications other than the Check Engine Light, then the system would...

Hi there. Assuming you correctly gaped the spark plugs as recommended by the manufacturer, and installed the plug wires correctly, it's likely that this is due to an electrical relay that may have been damaged (especially if you did not...

Thanks for writing in about your Mercedes Benz CLK430. This is a common problem as vehicles get older. This type of fault is called a parasitic draw and occurs when one or more component does not shut off when the...

Hi there. Sounds like the fuel pump is not working in your vehicle. Check the fuel pump relay and see if it is clicking on when the key is turned on. If the relay is working, then turn the key...

If you have confirmed correct fuel pressure when you changed the fuel pressure regulator, I would next check the engine coolant temperature sensor for the fuel injection system. That sensor, if failing, is generating a false "cold" reading, causing the...