Mastertechjb

Mastertechjb All types of mechanical and electrical diagnostic services and repairs. Brakes, A/C, timing belts, maintenance, factory scheduled services, and more!

Your local BG Service Center. Call JB Griffin at 423-570-1051

08/05/2026

Why is it harder to fix cars than ever? Parts, information, technology lockout, hard to reach bolts, and the list goes on, but I am here to help!

08/05/2026

Most people think auto repair is simple: you type a car into a computer, it spits out a price, and you swap the part. I WISH.Between mid-month production splits, catalogs that get the data completely backward, and the infamous "do you have 300mm or 330mm rotors" riddle... modern auto repair is 50% wrenching and 50% high-stakes detective work.Next time your local shop takes a little extra time to get you a precise, accurate quote, thank them. They are saving you from a logistics nightmare! 🛠️📦

07/30/2026

That little ticking sound under the hood isn’t always harmless.

A cracked exhaust manifold can start as a minor annoyance and turn into a much bigger repair if it’s ignored.

Watch before you assume it’s “just an old truck noise.”

👇 Have you ever had an exhaust manifold crack?

Like & follow

07/30/2026
07/29/2026

It’s over 100° outside, and this Ford Ranger would only blow heat.

The owner thought the A/C had a major problem, but the real culprit was something completely different.

Watch JB walk you through what actually failed—and why adding refrigerant wouldn’t have fixed it.

Has your vehicle ever had an A/C problem that wasn’t what you expected? Let us know in the comments.

07/16/2026

Customer heard a terrible noise coming down the mountain—but the problem wasn’t what you’d normally expect.

When we pulled the rear brakes apart, the brake lining had completely separated from the shoe on both sides.

Watch to see what failed, why it happens, and why ignoring a sudden brake noise can get expensive & dangerous fast.

Have you ever had a new part fail before it wore out? Tell us in the comments

07/09/2026

Don’t let your vacation begin on the side of the interstate.

Before you hit the road, watch this first. One simple check could save you from a blowout, a tow truck, and a ruined vacation.

Have you ever looked at the date on your tires? đź‘€

Follow for honest car advice that could save you thousands.

07/07/2026

“You have a rear main seal leak.”

It’s one of the most expensive diagnoses a vehicle owner can hear.

But here’s the question…

Is it really a rear main seal leak?

Before you approve a costly repair, watch this.

👇 Have you ever been told your vehicle needed a rear main seal? What did it turn out to be?








Address

6420 Back Valley Road
Evensville, TN
37332

Opening Hours

Monday 8am - 6pm
Tuesday 8am - 6pm
Wednesday 8am - 6pm
Thursday 8am - 6pm

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