In the automotive repair industry, MAF stands for mass airflow sensor and it's one of the key things that the computer looks at to determine how much fuel goes into the engine

We were talking about diagnosing wheel bearing noises.

What in the world is a Wheel Lock Key?

Welcome to Mercie J, where compassion and craftsmanship come together, I'm Rick Smith. So first of all let's start by talking about what holds your wheels on. Most vehicles use nuts on the wheels, it's just a standard hex shaped item that a socket goes over. Some use a bolt which is basically the same thing, it has a hex. On some cars we have what's called splines and so instead of a socket, it's a series of spines and we have a special socket that slides over. Once again, that's a universal thing.

How do I know if my catalytic converter is failing? Welcome to Mercie J, where compassion and craftsmanship come together, I'm Rick Smith.

So a catalytic converter can fail catastrophically and if it melts down, it can plug the exhaust and then your engine will either not run or have very little power.

Can an independent repair mechanic get factory certification? Welcome to Mercie J Auto Care, where compassion and craftsmanship come together, I'm Rick Smith.

First of all let me help you understand a couple of things about our industry. We are not like the other trades, we don't have like a register of contractors, so the certifications for us are voluntary.