Q: Car wouldn't start

I work on diesels. I used to work on them quite a bit. I work on them less now, but I used to work on them quite a bit. The problem with diesels (https://www.yourmechanic.com/article/5-essential-things-to-know-about-owning-a-diesel-car) are that they have less maintenance,...

Hey there. You should probably have another look at your plugs (https://www.yourmechanic.com/services/spark-plugs-replacement) and wires (https://www.yourmechanic.com/services/ignition-cable-spark-plug-wires-replacement) to see if the work was done correctly. Something may not be well connected causing an intermittent misfire. The Check Engine Light comes on steady...

Hello. Thanks for writing in. The warning light is telling you that the automatic transmission is having an issue. It may be a simple sensor issue which occurred during the latest work done. It may be something completely different. The...

Your vehicle will start and run well on both regular and premium fuel unleaded. Premium fuel is stated as "required" by Mercedes Benz simply because premium will maximize the performance, fuel economy, and possibly service life of the engine. But,...

Hi There, Your check engine light may come on as a result of the battery light coming on indicating that you have a problem with your charging system. This generally means that you have a weak battery or possibly a...

The short answer would be yes, the connecting rod does have a direct affect on the compression ratio. For example, if you were to use a shorter connecting rod in a given engine when doing a rebuild, a piston manufacturer...

Hi there. What you are describing is commonly associated with damaged or faulty wheel bearings (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-wheel-bearings). One warning sign of a wearing out wheel bearing is a loud grinding or roaring sound that comes from the tire area of your...

The brake light switch is located on the bracket to the brake pedal. There are two screws that secure the switch to the bracket and a harness plug. All you need to do is remove and replace the switch and...

Hi there. When the engine is stalling and sputtering, this is an indication that the fuel system has lost pressure. Check the fuel pump relay and see if it is hot and if its clicking on when the key is...