Home Repair and performance
Diesel repair and performance.
From routine repairs to performance upgrades on Cummins, Duramax and Power Stroke trucks. Diagnosed properly and quoted in writing.
Services
What trucks come in for.
Pick a category to see the work we do every day on Cummins, Duramax and Power Stroke trucks.
Diagnostics and electrical
Modern diesels are full of sensors, modules and emissions systems. We find the actual cause with proper diagnostic equipment and experience, then quote the repair before any work starts.
- Check engine lights and fault codes
- Regen, DPF and DEF system faults
- Limp mode and low power
- No start and hard start problems
- Charging, wiring and module issues
- Intermittent problems other shops could not find
Engine repair and replacement
From head studs to a complete long block, we repair and replace Cummins, Duramax and Power Stroke engines and inspect the supporting parts while we are in there.
- Head gaskets and head studs
- Oil cooler and EGR cooler repair
- Front covers, timing and seals
- Factory replacement long blocks
- Built engines for power and towing
- Engine swaps
Fuel systems and injection
Fuel system problems cause most diesel drivability complaints. We diagnose and repair injection systems and supply the parts that keep them healthy.
- Injector testing and replacement
- CP3 and CP4 injection pumps
- Lift pumps and filtration
- Fuel leaks and contamination
- Fuel tanks, including medium duty trucks
- Fuel system upgrades
Turbochargers and air
Turbo replacements, upgrades and the boost, intake and exhaust work that goes with them, including custom heat wraps made in our fab shop.
- Turbo replacement and upgrades
- Boost leaks and intercooler piping
- VGT actuators and sticking vanes
- Intake and exhaust upgrades
- Turbo heat wraps and blankets
- Compound turbo setups
Transmissions and clutches
Automatic and manual transmission repair, rebuilds and replacements for heavy duty diesel trucks, plus the coolers and lines that keep them alive.
- 68RFE, Aisin, Allison and TorqShift
- Torque converters
- Transmission coolers and lines
- Clutches and flywheels
- Transfer cases
- G56 manual conversions
Axles, suspension and steering
Differentials, axles, shocks and steering for trucks that tow, haul and work hard, plus leveling and lift installs.
- Differential service and covers
- Axle and gear work
- Shocks and coilovers
- Leveling and lift kits
- Steering components and stabilizers
- Wheel and tire setups
Maintenance, brakes and cooling
The routine work that keeps a diesel running for hundreds of thousands of miles, done by technicians who know what to look for on every generation.
- Oil and filter changes
- Fuel filters and fluids
- Brakes, rotors and calipers
- Radiators, hoses and cooling systems
- Belts, batteries and charging
- Inspections while it is on the lift
Lighting and work truck upfits
Warning lights, auxiliary lighting and switch panels for contractors, plow trucks and work fleets, wired cleanly and built to hold up.
- Strobe and warning lights
- Light bars and auxiliary lighting
- Switch panels and clean wiring
- Work truck accessories
- Installs for single trucks or fleets
Welding and fabrication
Our in house fab shop builds the parts you cannot buy: TIG welded piping, exhaust, brackets, mounts and structural work.
- TIG welded intercooler and turbo piping
- Custom exhaust systems
- Brackets and mounts
- Chassis and structural work
- Turbo heat wraps
Trucks we work on
Cummins, Duramax and Power Stroke.
Every generation, from early 12 valve Cummins to the latest L5P and 6.7 trucks.
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Cummins
5.9L 12 valve, 5.9L 24 valve, 6.7L
Ram trucks from 1989 to today. Injectors, turbos, head studs, 68RFE and Aisin transmissions, and manual swaps.
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Duramax
LB7, LLY, LBZ, LMM, LML, L5P
Chevy and GMC trucks from 2001 to today. Injectors, CP4 failures, Allison transmissions, cooling and engine replacement.
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Power Stroke
7.3L, 6.0L, 6.4L, 6.7L
Ford trucks from 1994 to today. Head studs, oil coolers, injectors, turbos and TorqShift transmissions.
How it works
From your first call to keys in hand.
No guesswork and no surprises. You know what is wrong and what it costs before we touch your truck.
- 1
Call or send the details
Tell us the year, engine, mileage and what is going on, by phone or with the online form.
- 2
We diagnose the truck
Our technicians find the real cause instead of guessing with parts.
- 3
You approve a written estimate
You get a clear plan and price before any work begins.
- 4
We fix it and keep you updated
Updates and photos while your truck is here, and a walkthrough when you pick it up.
Reviews
Customers trust us with their trucks.
Rated 4.9 stars on Google by diesel owners across the area.
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Had some transmission, and grid heater upgrades done, 100% satisfied! … I feel like I made some new friends as well! Thank you!
Martin K.Google review
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Took my truck to FSD to get some work done to it. I was very pleased with the quality of work … I will only be taking my truck to them going forward.
Cole C.Google review
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By far the best diesel repair shop for light trucks. Very few people are dedicated to their work like Kevin and his team. Couldn’t be happier.
Frank W.Google review
Ready to get your truck in?
Call the shop and talk to someone who knows diesels, or send us the details online and we will get back to you.
- Address
- 300 Industrial Dr
Nazareth, PA 18064
Get directions - Hours
- Monday to Friday
8:00 am to 4:00 pm - Phone
- (908) 674-1350