Truck Alternator Repair Service in Tennessee & Mississippi

For professional truck Alternator Repair Services from expert diesel mechanics in Tennessee & Mississippi, call Specialized Truck Repair today.

Overview of Heavy-Duty Truck Alternators

The starting system and the charging system make up the bulk of the electrical system. Important components are batteries, the starter, the alternator, interconnecting wiring, and electrical relays. If your alternator isn't functioning properly, it can actually effect your truck's overall efficiency and be fairly costly over long hauls, leading to increased fuel costs and possible downtime.

Do I need to replace my alternator?

Is it a dead battery or a failing alternator? Here's a quick checklist to diagnose which it might be:

Dying battery

If your alternator's not running properly, your truck will drain your battery reserves and stop powering lights, starting, or other issues. If you're going to replace a battery, check the alternator first to make sure it's delivering adequate current.

Lights are dim

Dim and/or flickering lights are one of the most commons signs of a failing alternator. It might be a sudden burst of light coming from your headlights or simply a dim or flickering dashboard. Either way, this is a telltale sign that your alternator needs service.

Electrical problems

Is your radio turning off out of nowhere? Or maybe your phone isn't charging? Or maybe your power seats feel like they're taking forever to adjust. This shows a lack of electrical power and could likely be the result of your alternator or batteries not functioning properly.

Stalling engine

If you're calling for emergency roadside service with this one, your in the right place. Your alternator might be the issue if your engine suddenly cuts power while hauling. It's likely the result of the vehicle no longer providing enough power to the ECM, which will shut down around 9.6v.

Service engine light

Don't be the guy who ignores the "Check Engine" or "ALT" light. An ounce of prevention is worth a pound of cure when it comes to your truck. Note that your dashboard might show a battery icon even when the alternator is the issue.

Squealing, Growling or Grinding Sounds

The serpentine belt is going to stretch over time. As it stretches, it stops spinning the alternator pulley properly and it results in a lack of charge. You'll notice this when a squealing, growling, or grinding sound is coming from the engine.

Book Online

Contact The Shop

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Specialized Truck Repair logo

A Truck Repair Shop You Can Trust.

We take responsibility for the quality of work we do. As mechanics, we know that every job needs to be done to 100% the best of our abilities. From quick turnaround times to efficient EOM and aftermarket parts sourcing to education and recommendations. Each and every Specialized Truck Repair shop believes in and operates by these standards.

Learn More
Low Downtime & Fast Turnaround
35+ years of experience
Open 24/7 for Roadside Service
No hidden fees or charges
Guaranteed Quality Parts
Highly-rated customer reviews
1-year warranty on labour and parts

Customer Reviews

We pride ourselves in putting our customers first. Our mechanics know the importance of treating every vehicle like their own.

Customer Reviews

We pride ourselves in putting our customers first. You can rest assured that our mechanics know the importance of treating every vehicle like their own.

K T

K T
Kingston Springs, TN

These guys are absolutely AMAZING!!!! I had an issue with my trailer and they went above and beyond anything I could've asked for to ensure that I was back on the road!!!! I have never had customer service this awesome from anywhere else!!!

Anthony N Tabitha Nowicki

Anthony N Tabitha Nowicki

Great service, got my emissions cleaned.. definitely recommend!!

J.A.H Freight LLC Hernandez

J.A.H Freight LLC Hernandez
Kingston Springs, TN

Called the shop spoke to John. Explained to him how my driver was at Love's Truck stop near by. He couldn't move because the diesel pump was cracked Love's kept trying to send me to Freightliner. Glad i came across Specialized truck repair in Google. John got my truck towed to his shop for a reasonable prices. They got the part for me from freightliner and got it in the truck in half a day. Price was very reasonable and since they own the tow truck I got a good price on that. I highly recommend this shop If you are a OTR driver and are looking for a shop that won't take advantage of you.

J. Bayne

J. Bayne
Nashville, TN

We sufferend an EGR Cooler failure on the side of I-65.  It actually grenaded on us.  After being towed to Specialized, we were repaired same day.  Thank you, thank you, thank you!

K Thay

K Thay

They are wonderful. We were visiting from out of state and our engine light came on. They were the only ones that said they would take the time to look at it that same day even though they were very busy. They came right out when we got there and let us know it was not an urgent problem (a glow plug was bad) and we should be fine waiting until we got home

Cherish P.

Cherish P.
Nashville, TN

We had our truck towed from the dealership.  We saved moneycoming here, even including the tow bill.  We also didn't have to wait 2 weeks like the dealership said it would take.

JC Jackson

JC Jackson

I was sent because I thought something was wrong with my trailer, but it turned out that my fuse popped out in my truck. The receptionist is a blast we laughed the entire time. Thank again for the help on my trailer and the laughs with the receptionist 🤗😂🤣.

Jacob Lancrain

Jacob Lancrain
Kingston Springs, TN

Great customer service, very nice facility, mechanics were knowledgeable and friendly, definitely recommended.

James Jones

James Jones

Excellent service, in and out quickly!

Randall Orr

Randall Orr
Memphis, TN

Had me back on the road in no time. Great business here!

24/7 Roadside Assistance

Our fleet of 6 fully-equipped trucks provide around-the-clock response to your mechanical, tire and brakes, air leaks, fluid leaks, emissions, or diagnostics problems.

615-878-9744