Heavy Truck Alternator Service

The Best Alternator Service in Tennessee & Mississippi

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.

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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.

Kristin Campbell

Kristin Campbell
5 Star Review
Memphis, TN

We had an emissions problem on our Peterbilt. The tech was professional and courteous. I recommend these guys to anyone needing expertise

Carlos Medina

Carlos Medina
5 Star Review
Fairview, TN

Just to compliment the great service provided by the lady (Groria) who took care of our truck trouble.Very knowledgeable and attentive..we got in and out in no time. Job well done ( From San Antonio tx)

Jacob Lancrain

Jacob Lancrain
5 Star Review
Kingston Springs, TN

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

Charles Card

Charles Card
5 Star Review
Nashville, TN

Great service place! honest mechanics are hard to find! I highly recommend this place to anyone in need of service for their vehicle.


Jeffery Colton

Jeffery Colton
5 Star Review
Olive Branch, MS

Being a Memphis native, we have been to about every diesel shop in the area over the years. Angel's used to own this building, but we heard there were new owners and we wanted to check on it. Turns out, its better than ever

J.A.H Freight LLC Hernandez

J.A.H Freight LLC Hernandez
5 Star Review
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.

David DiNanno

David DiNanno
5 Star Review
Springfield, TN

They did a quality repair job on rusted brake lines on my truck. Brakes work much better now. Fast service. Very reasonable pricing. I plan on going back for anymore service needed for my truck or car.

Felicia Wells

Felicia Wells
5 Star Review
Kingston Springs, TN

Driving an RV from SC through TN on a Sunday. Called the big company near Specialized Trucking to jump our generator. Wouldn’t help us. I called Specialized Trucking helped us while extremely busy got our generator jumped in less than 10 minutes. Rock star service. Thank you SO much!!!

Renee Wages

Renee Wages
5 Star Review
Kingston Springs, TN

This place was a great place to get a repair, they were very nice and fast and professional and it was very cost efficient. Highly recommend giving this shop a try! Stephon really knew what he was doing. Awesome Job!!

Jon Bartrum

Jon Bartrum
5 Star Review
Memphis, TN

The team really works well together. Great communication throughout my engine repair process

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