Get every mile out of your Duramax
Diagnosis, repair, and maintenance for Duramax V8 and 3.0L diesel engines, plus Allison service. Intimate familiarity with late-model Duramax-equipped pickups, from the fuel system to the turbo to the transmission behind it.
A diesel is not
a bigger gas engine
Injection pressures, emissions hardware, turbo systems, and the Allison behind it all interact in ways a general repair shop doesn't see often enough to know well. On these trucks the expensive failures usually start as small ones that somebody misread.
We work on Duramax-equipped pickups constantly, which means we've seen how these specific systems fail and in what order. That's the difference between replacing a part and solving a problem.
Diesel services
Read it properly before replacing anything
Diesel fault codes point in a direction, not at an answer. A code that names a sensor is often reporting a condition somewhere else in the system. We diagnose to the cause so you're not buying parts on a guess.
- Scan tool diagnostics on Duramax V8 and 3.0L applications
- Live data interpretation, not just code retrieval
- Additional diagnostics billed at one hour of labor, agreed before we start
Injection, pumps, and contamination
The fuel system is where a small mistake becomes an enormous invoice. Contamination travels, and on a common-rail diesel it travels into components that are expensive individually and worse together.
- Fuel system diagnosis, repair, and replacement
- Injector and pump concerns
- Contamination cleanup, including DEF-in-fuel situations
- Fuel filter service on the correct interval
If you've put the wrong fluid in the tank, do not start the engine. Call us first. What happens in the next ten minutes decides how big this gets.
Turbocharger and emissions systems
Diagnosis, repair, and replacement of turbocharger and emissions components. These systems are tied together, and a turbo complaint frequently traces back to something on the emissions side that's been reporting a problem for months.
- Turbocharger diagnosis, repair, and replacement
- Emissions system diagnosis, repair, and replacement
- Root-cause work, so the replacement part isn't the next thing to fail
Routine service that actually gets done right
The unglamorous work that decides whether the truck makes it to 300,000 miles. We'd rather do this than the big job, and we mean that.
- Fuel filters on the correct interval
- Thermostats
- Power steering fluid
- Allison transmission service
Modifications with a purpose
Tuning and performance or longevity modifications, aimed at how you actually use the truck. If you tow heavy, the goal is usually keeping temperatures and stress down, not chasing a number.
We'll be straight with you about what a given modification does and doesn't do, including what it means for your warranty and your emissions equipment. Some things that are technically possible aren't things we'll do on a road-going truck, and we'll tell you that up front rather than after you've paid.
Find out where
your truck actually stands
A full look at the systems that decide how many miles are left in a Duramax-equipped pickup. Worth doing before a big tow season, before a long trip, or before you decide whether to keep the truck or trade it.
Fuel system
Condition and pressure, filter status, and any signs of contamination working its way through.
Turbo & emissions
How the turbo and emissions hardware are behaving now, and what's trending the wrong way.
Transmission
Fluid condition and shift behavior on the Allison or the 10-speed sitting behind the engine.
The honest summary
What's fine, what to watch, and what to budget for. In writing, so you can plan around it.
The point of this isn't to generate a repair list. It's so you know what you're driving. Plenty of these come back with nothing urgent on them, and that's a good result.
Engines and units
Late-model Duramax-equipped pickups are the core of what rolls through here, along with the transmissions behind them.
Since we're a transmission shop first, a diesel that comes in with a shifting complaint gets both problems looked at by the same people. On these trucks that matters, because engine performance and transmission behavior are easy to confuse for one another.
Straight answers
I put DEF in the fuel tank. What now?
Don't start the engine, and don't move the truck under its own power. DEF is corrosive to fuel system components, and every minute the system circulates it the damage spreads further into parts that are expensive on their own and much worse together. Call us and we'll talk through getting it here without running it.
How often should I change the fuel filters?
Follow the manufacturer's interval at minimum, and shorten it if you tow heavy, idle a lot, or buy fuel from stations with high turnover you can't verify. Filters are among the cheapest parts on the truck and they protect the most expensive ones. This is not a place to stretch an interval.
Do you service the Allison too?
Yes. Allison service is part of routine maintenance here, and being a transmission shop first means the unit behind your engine gets looked at by people who work on transmissions all day rather than as an afterthought.
My truck runs fine. Is a health check worth it?
It's most worth it exactly then. A health check on a truck that's running well tells you what's trending and what to budget for, which is far more useful than finding out on the side of the road. It's also the right move before a big tow season or before deciding whether to keep the truck.
Will you do performance modifications?
We do tuning and performance or longevity modifications, aimed at how you actually use the truck. We'll also tell you plainly when something you're asking about isn't a good idea for a road-going vehicle, what it means for your warranty, and what it means for your emissions equipment. You'll get that answer before you spend money, not after.
Do I get an estimate before work starts?
Yes. A written, typed invoice is emailed and texted to you before any repair begins, with the complaint, the cause, and the correction spelled out. Nothing happens that you haven't approved.
Bring the truck by
Call and tell us what it's doing. Coming from a distance? Ask about towing and we'll help you get it here.
727-870-0058