Popular questions

Hi, thanks for your question. I'd be happy to help. The diesel battery may be heavy duty compared to the petrol engine. The two batteries should be compared for size and height to be the same and the terminals should...

Thanks for asking. With all of the work that has been done to the vehicle, I would recommend having a mechanic, such as one of our YourMechanic experts, inspect your starting issue. Your symptoms sound like an air/fuel metering concern...

Sounds like you may have a problem with corrosion in the transmission control module, shift module, or in some of the engine sensors. Reading the engine codes would lead to a more specific diagnosis, but checking for corrosion on any...

What you are describing sounds like a faulty starter solenoid. A faulty starter solenoid will generally produce a clicking sound when turning the key. The starter solenoid is located on the starter and has internal electrical contacts that transmit electricity...

Hi. If the code is still present after both sensors have been replaced, and the engine is stalling, further diagnostics is needed. First of all, a new sensor doesn’t always mean a good sensor, especially aftermarket ones. Check the sensor...

The cost to replace the engine may exceed the value of the vehicle. It will cost less to replace the engine with a used one versus overhauling the existing engine.

You may have ignition coils that are giving out a weak spark and or failing intermittently causing the misfire. Also a system that is running lean may cause random misfires. have the coils checked for spark output after engine is...

There are several different possibilities for a hard-to-turn steering wheel with a knocking noise. These noises could indicate the shocks are worn; suspension bushings, ball joints, or tie rods have failed. I would have a certified mechanic diagnose and fix...

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.

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. 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...

Ideally, you should have aligned the marks before you removed the timing belt. It sounds as though everything is completely disassembled already. This makes things a bit more difficult. I would only recommend assembling it the same way as you...

The problem can come from a few areas depending on the vehicle. It can be a loose ground to the instrument cluster, or a circuit board failure inside the cluster itself. Some vehicles also use an amplifier in the cluster...

You will need to check the engine intake for vacuum leaks and if not then replace the sticking idle control valve and then relearn the idle by disconnecting the battery and then reconnect after 10 minutes. Start and hold at...

In your initial question, I did not know that valve damage occurred as a consequence of a failed timing belt replacement. The 4 valves that the shop "claims" were damaged might merely represent what they "think" was the extent of...

Claimed by David Gaines Wooten

It is recommended t replace pads with the new rotors. The old rotors would of put grooves in the pads and caused them to not be flat anymore. If you decide to use the existing pads then you should sand...

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...

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...

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...