⚠️ Call Now – Speak to a Certified Mechanic in 60 Seconds: (631) 753-2211
TLC Auto & Truck Repair Center

230 NY-109, Farmingdale, NY 11735

(631) 753-2211

Call Us Now!

Monday - Friday : 7:30 AM - 5:00 PM
Sat/Sun: Closed
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Relevant Truck Repair Services

Common Diesel Engine Problems and Warning Signs

When your diesel truck starts losing power, producing smoke, or idling rough, it’s time for a professional inspection. Ignoring early warning signs can lead to costly breakdowns and extended downtime.
Watch for these common diesel repair issues:
  • Hard starting or long crank times
  • Loss of power or poor acceleration
  • Excessive exhaust smoke (black, white, or blue)
  • Engine misfires or rough idle
  • Fuel leaks or clogged injectors
  • Check engine light or low fuel pressure warning
If you notice any of these signs, schedule a diesel repair service as soon as possible. Our diesel mechanics use OEM-level diagnostics to pinpoint the cause and restore peak performance fast.
(631) 753-2211
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What Our Customers Are Saying

Truck Diesel Repair 3

JM Ryan

Everyone was professional and super friendly. I went in for an inspection for my class b rv. They were quick! And had good choice of keurig coffee pods while I waited. I will definitely go back to them for other services when needed! Thanks!
Truck Diesel Repair 4

Chris Sweeney

I have been taking my cars to TLC for years and couldn’t say enough good things about the team there. They always communicate all issues clearly, are extremely fair priced and always a pleasure to deal with. If you ever have an issue with your vehicle, whether it is a big or small issue, these are the guys you can trust to get it done right. 5 stars for sure.
Truck Diesel Repair 5

Royce Clark II

As a new owner operator, I am very skeptical about prices and procedures. The staff at TLC understood that and comforted me the whole way. Naturally, a lot of explaining had to be done. A staff member named Tyreek helped me and guided me through the whole process. (Two weeks later, and I still remember his name) At the end, I needed a service Done that was not on the invoice. A staff member completed the job and denied my $10 tip. This staff is the greatest!
Truck Diesel Repair 6

Brianna Jacobs

I had a great experience at TLC Auto. After getting a flat tire I brought in my car. Unfortunately the tire couldn’t be saved, but Dom got my new tire on and balanced in no time. I highly recommend them.
Truck Diesel Repair 7

Wayne Foley

I was in need of diesel state inspection for my 2022 silverado 2500 hd and a set of tires . TLC took care of it and kept me rolling down the road .just want to say thanks to all for nice job
Truck Diesel Repair 8

Michele Patterson Gray

TLC provided excellent service for my GMC Denali, including a front lift, new tires, and an oil change. Jack communicated all the details beforehand and kindly offered a loaner car during the service. I highly recommend them for their attentive care of your truck.

Why Choose Us

When your truck needs diesel repair, you want expert mechanics who understand heavy-duty engines inside and out. Our certified diesel specialists deliver accurate diagnostics, fast turnaround times, and reliable repairs that keep your truck on the road.

Advanced Diesel Diagnostics

We use dealer-level scan tools to pinpoint issues with fuel injectors, turbo systems, or sensors. Accurate testing saves you time, prevents unnecessary repairs, and gets your truck running smoothly again.

Up to 5-Year / 60K-Mile Warranty

Every approved diesel repair is covered by one of the strongest warranties in Farmingdale. You get long-term confidence knowing both parts and labor are fully protected.

Certified Diesel Mechanics

Our ASE-certified technicians have years of experience working on light-duty, heavy-duty, and European diesel trucks, including Freightliner, Volvo, Ford, and Mercedes-Benz.

Fleet Diesel Repair and Maintenance

We design custom maintenance schedules for fleets of any size. You’ll get regular reports, consistent service intervals, and repairs that help prevent costly downtime.

Free Pick-Up & Drop-Off*

Available within 20 miles. We handle the logistics, pick up your truck, perform the repair, and deliver it back ready for the road.

Family Owned Since 1991

For over three decades, we’ve built a reputation for honest service, clear communication, and expert diesel repair that keeps customers coming back.

Diesel Repair & Service Options

Our Diesel Repair Services Include:

Diesel engines are powerful, reliable, and built to last but only when they’re maintained correctly. Our certified diesel mechanics provide full-service diagnostics, maintenance, and repairs for all diesel truck makes and models, including Freightliner, Volvo, Ford, and Mercedes-Benz.

This Service Includes:
  • Diesel engine diagnostics and performance testing
  • Fuel system repair and injector cleaning
  • Turbocharger inspection and replacement
  • EGR and DPF cleaning or replacement
  • Oil and filter changes with high-grade diesel lubricants
  • Cooling system and radiator repair
  • Glow plug and ignition system service
  • Exhaust and emission system repair
Our diesel repair specialists use advanced diagnostic tools and manufacturer-approved parts to ensure every repair meets OEM standards. Whether it’s a light-duty pickup or a heavy-duty commercial truck, we deliver fast, reliable results backed by an up to 5-year / 60K-mile warranty.
(631) 753-2211
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TLC Auto & Truck Repair Center

OUR GALLERY

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How it Works

1. Book Your Appointment

Call or book online at a time that fits your schedule. Free pick-up and drop-off are available within 20 miles.

Book Service

2. Inspection & Diagnosis

Our certified diesel mechanics perform a complete diagnostic check, test fuel pressure, inspect injectors, and identify the root cause of performance issues.

3. Professional Repair or Service

We handle everything from minor maintenance to full engine repairs using advanced tools and OEM-quality parts. Every diesel repair service is completed to factory standards.

4. Quality Check & Return

Each repair is road-tested and verified for performance and emissions. Your truck is returned running strong and backed by our up to 5-year / 60K-mile warranty.

Fleet Diesel Services

Reliable Fleet Maintenance and Diesel Repair Solutions

Keep your fleet on the road with consistent maintenance and expert diesel repairs. Our certified technicians handle everything from oil changes to complex engine diagnostics, helping you avoid breakdowns and downtime.

Fleet services include:

  • Scheduled diesel maintenance and inspection programs
  • Fleet diagnostics for power loss, emissions, and fuel systems
  • Priority booking and flexible scheduling
  • Unit-by-unit service records and maintenance tracking
  • DOT and NYS inspection coordination
  • Free pick-up and drop-off within 20 miles
Our fleet diesel repair service keeps your vehicles compliant, efficient, and dependable. Whether you manage two trucks or twenty, we create a maintenance plan that fits your schedule and keeps your operations running smoothly.
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Backed by Leading Brands

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Repair Shop: TLC Auto & Truck Repair Center

Address: 230 NY-109, Farmingdale, NY 11735

Phone: (631) 776-4436

Email: [email protected]

Operating Hours

Mon-Fri: 7:30AM – 5:00PM
Sat/Sun: Closed

(631) 776 4436
Get Directions
Old Westbury Gardens
  • From Old Westbury Rd and Jericho Tpke, enter Northern State Pkwy (west).
  • Take Wantagh State Pkwy (south).
  • Merge onto Southern State Pkwy (east).
  • Take Exit 32N for NY-110 N/Broadway toward Amityville.
  • Continue on NY-110 N/Broadway.
  • Exit to NY-109 E/Farmingdale Rd toward Babylon.
  • Turn right; TLC Auto & Truck Repair Service Center is on the right at 230 NY-109, Farmingdale, NY 11735.
22 min. 15.6 miles
Jones Beach State Park, Wantagh
  • Take Wantagh State Pkwy north from Ocean Pkwy
  • Merge onto Southern State Pkwy east toward Suffolk
  • Take Exit 32N for NY-110 N / Broadway toward Amityville
  • Continue on NY-110 N, then take the ramp for NY-109 E / Farmingdale Rd toward Babylon
  • Turn right; TLC Auto & Truck Repair Service Center is on the right at 230 NY-109, Farmingdale, NY 11735.
18 min. 13.8 miles
Cradle of Aviation Museum
  • Take Charles Lindbergh Blvd east to Meadowbrook State Pkwy S
  • Merge onto Southern State Pkwy E toward Suffolk
  • Take Exit 32N for NY-110 N / Broadway toward Amityville
  • Continue on NY-110 N/Broadway.
  • Take the ramp for NY-109 E / Farmingdale Rd toward Babylon
  • Turn right; TLC Auto & Truck Repair Service Center is on the right at 230 NY-109, Farmingdale, NY 11735.
20 min. 11 miles
Bethpage State Park
  • Exit the park onto Quaker Meeting House Rd, then turn right onto Round Swamp Rd heading south
  • Continue on Round Swamp Rd to NY-109/Farmingdale Rd
  • Turn left onto NY-109 E toward Babylon
  • Continue on NY-110 N, then take the ramp for NY-109 E / Farmingdale Rd toward Babylon
  • TLC Auto & Truck Repair Service Center is on the right at 230 NY-109, Farmingdale, NY 11735.
7 min. 3.2 miles

Long Island’s Trusted Diesel Repair Shop

Family owned and operated for more than 30 years, our repair shop has earned the trust of drivers and fleet operators across Farmingdale and Long Island. We take pride in providing honest recommendations, transparent pricing, and dependable diesel repairs that keep your truck performing at its best.

Why Drivers Choose TLC Auto & Truck Repair

  • Official NYS Inspection Station
  • Up to 5-Year / 60K-Mile Warranty on Parts & Repairs
  • Certified Diesel Mechanics with Advanced Diagnostic Tools
  • Free Pick Up & Drop Off Within 20 Miles
  • Early and Late Drop-Off Options
  • Fleet-Friendly Scheduling and Maintenance Plans
Whether you drive a single work truck or manage a commercial fleet, our goal is simple: to keep your diesel engines running strong, safe, and efficient on every job.
Book Appointment
TLC Auto & Truck Repair Service Center Team

Frequently Asked Questions

How often should I service my diesel truck?

Most diesel trucks need servicing every 5,000 to 7,500 miles, depending on driving conditions and load. Regular oil and filter changes keep your engine running efficiently. Staying on schedule prevents fuel system buildup and costly repairs.

What are the most common diesel engine problems?

Common issues include clogged fuel injectors, turbocharger failures, and exhaust after-treatment problems. These often lead to loss of power, poor fuel economy, or excessive smoke. Our diesel repair specialists can diagnose and fix these problems quickly.

How do I know if my diesel injectors need cleaning or replacement?

Hard starts, rough idling, or white smoke are signs of dirty or failing injectors. Poor fuel quality or lack of maintenance often causes buildup in the fuel system. Schedule a diesel repair service if you notice these symptoms to prevent performance loss.

What causes a diesel truck to lose power?

Fuel delivery problems, turbo issues, or restricted airflow are the most common causes. Modern diesel engines rely on clean filters and proper fuel pressure. Our technicians use advanced diagnostics to pinpoint and repair power loss efficiently.

Do you service Mercedes and other European diesel trucks?

Yes, our team provides full Mercedes diesel repair and maintenance for other European diesel models including Sprinter vans and Volvo trucks. We use OEM-level diagnostic tools for precise results. All work is backed by our up to 5-year / 60K-mile warranty.

Is diesel maintenance more expensive than gas?

Diesel trucks can cost slightly more to maintain, but they last longer and deliver better fuel efficiency. Preventive maintenance helps you avoid expensive repairs over time. Regular service keeps your diesel truck repair costs predictable.

Can I drive with a diesel engine warning light on?

It’s best not to. The warning light can indicate problems with emissions, injectors, or sensors. Continuing to drive could cause further damage, so call (631) 407-2798 to schedule a diagnostic inspection as soon as possible.

Do You Offer Emergency or Same-Day Diesel Truck Repairs?

Yes, we provide same-day diagnostics and repair for urgent diesel issues whenever possible. Breakdowns, warning lights, loss of power, or heavy smoke often require immediate attention. Call us to check availability, and our technicians will work to get your truck back on the road quickly.

What Our Customers Are Saying

Truck Diesel Repair 9

Andrew Minikes

I didn’t think TLC would take my unusual request to fix bearings off of a wheelbarrow wheel. The guys were so nice and professional. They fixed the wheel in no time, and I was very appreciative for their quick work!
Truck Diesel Repair 7

Wayne Foley

I was in need of diesel state inspection for my 2022 silverado 2500 hd and a set of tires . TLC took care of it and kept me rolling down the road just want to say thanks to all for nice job .

Truck Diesel Repair 11

Samuel Tsang

Always a pleasure to deal with Matthew Scott , who does his best to accommodate our requests in a timely manner when working on my company’s fleet vans. Thanks for the continued support TLC!
Truck Diesel Repair 12

Schedule Your Diesel Repair Today

Restore your truck’s performance with expert diesel repair service from our ASE-certified mechanics in Farmingdale, NY. From diagnostics to full engine rebuilds, we deliver fast, reliable results you can trust.

Call today or book online for same-day scheduling and free pick-up within 20 miles. All repairs are backed by our up to 5-year / 60K-mile warranty.

(631) 753-2211
Same-day slots available today.
Call Us Now!