Q: Fuel mileage down

Thank you for your inquiry. The valve cover seal is a common failure item and generally and easy fix. In your case, the upper intake plenum/manifold wraps over the top of the engine and must be removed to complete the...

Your stalling problem (https://www.yourmechanic.com/article/how-to-fix-a-stalling-car) may be due to a vacuum leak (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-a-vacuum-leak) in the engine, but one that only when it is warmed up. This would lead me to believe there is a possible problem with the EGR valve and...

That thing has an electronic throttle. It's called "drive-by-wire." Basically, you are actually stepping on a computer mouse and the computer mouse sends electricity to the computer. The computer then sends the electricity to the throttle stepper motor and the...

Hello. Ford or Motorcraft brand would be the OEM fluid brand that your vehicle came equipped with from the factory. However, any brand of oil and transmission fluid will work fine as long as it meets the API certification rating,...

The cylinder heads are one part of the complete engine package. As such, when they are rebuilt, other critical components such as connecting rods, bearings, pistons and cylinder sleeves are not replaced. If your head gasket broke, causing water to...

Hi and thank you for contacting YourMechanic. There is no reason that the only way to replace the serpentine belt is to replace the compressor also - don't buy that! Now, if by chance the mechanic who is no longer...

Brake noise is not normal and is due to the failure to use OEM (dealer supplied) brake pads, apply shims to the pads as required in the OEM set-up, use appropriate anti-squeal compounds, and also failure to properly re-surface the...

There can be several codes pertaining to the camshaft sensor and you did not supply the code you are getting. You may be having a problem with the camshaft timing phaser not being in the correct position when engine is...

Some learned engine operating parameters values, stored in the PCM (engine computer), can be lost when the battery is replaced. However, after 25 miles or so, the engine should operate normally as it did before. If it doesn't, then there...