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TLC Auto & Truck Repair Service Center

230 NY-109, Farmingdale, NY 11735

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Monday - Friday


Diesel Repair

Serving Long Island since 1991. Give us a call, we are happy to assist you.

Diesel Repair

Serving Long Island since 1991. Give us a call we are happy to assist you.

diesel truck mechanic

Diesel ENGINE repair shop in Long Island, New York

Why you need a quality diesel repair shop

If your truck needs diesel repair, you have to find a quality diesel repair shop to do the job correctly. Otherwise, you may end up paying more for ordinary maintenance.


Performing diesel truck repair on schedule gives your vehicle a longer lifespan, saving you money over the long haul, mainly if you use it for work.


Generally, a diesel engine repair shop requires particular expertise and equipment to fix even the most rudimentary issues. The differences between diesel-powered vehicles and gasoline-powered vehicles show why you need a certified diesel mechanic like TLC.

TLCs Reputation

TLC Auto & Truck has been around since 1991, so we’ve had thirty years to build our reputation. Our customers love us because we’re experienced, quality oriented, honest, and reliable. You will too.

Diesel Repair 1


If you’re looking for diesel repair, you’ve come to the right place.

Diesel Repair 2

Diesel Repair

TLC truck

Best diesel Repair Service

Diesel Repair 3

We make it easy

What Our Customers Are Saying

Nick Mak
Nick Mak
Local Guide
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I travel alot for work and always come here for the trucks maintance ( with over 300k miles it needs alot) I even bring my personal pick up ( even though dealer offers cheaper oil changes) not only do they do what they are suppose to but they go above by checking on the rest of the vehicle. A+ service. I never rate 5 stars but they well deserve it. Good job guys
Express Results
Express Results
Local Business
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What can I say.. these guys are the best in the diesel truck repair business that I've found. I own several Ram Diesel Tow Trucks and they have kept us running without fail and for a very fair price. Thanks guys, you'll always be my 'go-to' for my trucks!
Maria Harding
Maria Harding
Local Guide
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Awesome place got my horse trailer inspected and the men there helped me out so much with information definitely will send all my people there for service
Elsbeth P
Elsbeth P
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I was travelling and had a problem with the generator on my RV. Matt and the service techs at TLC got me in the day after I called and got it repaired in two hours, at a very fair cost. I stumbled into TLC after RV service outfits told me it would be a week to ten weeks before they could even look at my problem. I can't say enough about how well they took care of me.
Paul Antonio Ogando
Paul Antonio Ogando
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Have been coming here for a few years now. Have never had a bad experience. Tried setting things up via facebook messenger this last time and everything went great. Was super easy. Really excellent service and great work.


Give us a call, we are happy to assist you.

WHY CHOOSE OUR Diesel Repair Service

fleet repair maintenance


We are well-equipped for fleet repair and maintenance. We currently work with fleet management companies: Element, ARI, LeasePlan, Ge Capital.

Free pick up and drop off


No second vehicle? No worries. we’ve got your back, we’ll pick you up and drop you off for free!

30 years of experience


We’ve been reliably repairing cars, trucks, trailers, and RV’s for almost 30 years.

we repair everything


There are no gimmicks here. We tell you what needs to be fixed and get the job done.

genuine service


Authenticity is our brand. Bringing you complete and genuine service with a smile.

guaranteed repairs


Guaranteed (most) repairs for 24 months or 24K miles, giving you peace of mind.

certified diesel mechanic
diesel truck repair shop

Common mechanical problems with Repairing diesel engines

Diesel motors have different priorities for preventative maintenance, but it’s all too common for truck owners to put off repairs like any vehicle.

As a result, these are the most common mechanical problems with diesel engines:

The last point deserves a particular word of caution before visiting a diesel repair shop. Warning: Never use ordinary motor oil in a diesel engine!


Using the wrong type of oil will ruin the entire engine because diesel oil has a lower viscosity (i.e., higher thickness) and lasts longer. Sometimes, a used and battered diesel engine will require a full rebuild or wholesale replacement of critical parts. Combine that with the higher than average cost per part, and it’s easy to see why you need to stay on the safe side and find a quality diesel repair shop.

How TLC Auto & Truck Repair Shop performs diesel engine repair

If you think your diesel truck needs attention, you can call TLC Auto & Truck Repair Service Center because they know, expertise, and a certified diesel mechanic. At TLC Auto & Truck, providing award-winning customer service is our goal. Find us on Google and read through more than 70 five-star reviews!


If you think you might cause more damage to your diesel by driving it to a diesel repair shop, contact us before you take an unnecessary risk. Diesel inspections and fleet maintenance are two additional repair services you’ll find at TLC Auto & Truck Repair Shop. The needs of diesel truck owners are unique, and you can inspect the quality of the work for yourself.


Check out our Diesel Engine Troubleshooting Guide

diesel repair near me
diesel mechanics

What's the benefit of finding a diesel mechanic?

less shop visits

You’ll need a diesel specialist sooner or later, but the most significant benefit of owning a diesel-powered truck is that you’ll need to take it to the shop less often. The downside is that diesel engine parts cost more overall. You can’t simply swap a piece intended for a gasoline engine and install it in a diesel motor.

diesel mechanics shortage

There is a sharp distinction between compression-based ignition and gasoline-based ignition. You’ll need to know the subtle differences. Also, there is a shortage of certified, trustworthy diesel mechanics across the country. Thus, a diesel specialist commands a higher price tag for their skills and expertise.


A diesel truck mechanic tip: Stick to a tight maintenance schedule because diesel repair costs more per job.

Comparing diesel engines versus gasoline engines

Not everyone knows the difference between diesel repair and gasoline engine repair. For those who don’t know the distinctions, here is a short breakdown of essential characteristics.

Characteristics of diesel motors:

Diesel engines are typically bigger, louder, and emit more pollution than standard gasoline-powered motors. At a glance, you might be asking yourself, “then why would I want a diesel in the first place?” The answer is that they’re less expensive to maintain over time when you do need diesel repair, and they have more power.  A quality diesel repair shop knows that diesel motors require more robust parts and feature better performance when it comes to torque power and fuel efficiency.


The chemical composition of diesel fuel yields more power per gallon, so that’s one reason why diesel-powered trucks make the best work vehicles and need less diesel engine repair.

Characteristics of gasoline motors:

On the other hand, gasoline motors will require a shorter maintenance schedule, meaning that the engine wears down faster, and you’ll need to find a reliable diesel repair shop more often. Gasoline ignition relies on spark plugs to crank the motor; diesel engines use glow plugs for compression ignition.


The result is that gasoline-powered motors produced less toxic emissions than diesel motors. The trade-off is that gasoline gets you less mileage per gallon. Depending on the model of truck you own, the difference in fuel efficiency may be slight but will pay dividends over time when you need less diesel repair.


Ordinary mechanics know their way around any gasoline engine, but a diesel mechanic knows his way around a diesel engine just as well.

mechanic diesel repair


Diesel Repair

certified diesel mechanic

Your repairs come with a 24-month guarantee, or up to 24,000 miles, on diesel repair. A reliable diesel engine repair is tough to come by in the Farmingdale, NY area. Know that our commitment is to treat you like family and provide genuine, honest customer service.


Call TLC Auto & Truck Repair Shop to contact a certified diesel mechanic.


Don’t compromise on safety for yourself or others on the road. Drop by our shop, schedule an online appointment today or give us a call


TLC trusted companies


As a family-owned business, we strive to bring our family values to yours, so you can count on us to get the job done right the first time.
TLC Auto Truck Center

We fix everything, including but not limited to:

Contact us at any time to learn more about what makes TLC a special shop.

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