TLG Automotive

Cummins Power Unleashed 🔥💨
From the old turbo setup to this clean performance upgrade — this Ram got a whole new attitude. Better sound, better look, and the kind of build that makes you want to hit the throttle leaving the shop 😅🛞🔥

We truly appreciate the trust our customers invest in us. Projects like this are the reason we love what we do. This truck has some serious power upgrades under the hood, and we’ve had the opportunity to help maintain and improve it over the last few years — leaving the shop better every single time.
This turbocharger upgrade was an awesome build to be part of, and for the real diesel truck enthusiasts out there… you already know the details matter. 🔧🔥
In TLG We don’t just repair trucks — we help bring projects to life. From diesel diagnostics and performance upgrades to medium-duty fleet work and custom truck builds. Our team has the knowledge, equipment, and experience to get the job done right.
✔ Performance upgrades
✔ Diesel & turbo specialists
✔ Medium-duty & fleet experts
✔ Built for truck enthusiasts & hardworking vehicles alike

🚨 Keeping Fleet Trucks Road-Ready 🚨 At TLG Automotive, every repairs starts with a thorough Digital Vehicle Inspection (DVI) Gio is inspecting a tow truck to help catch potential issues before they turn into costly downtime.
From suspension and steering components to leaks, brakes, and overall safety checks, our goal is to keep hardworking trucks reliable and on the road.
✔ Diesel & medium-duty specialists
✔ Fleet maintenance & inspections
✔ Commercial truck diagnostics
✔ Digital inspection with clear communication.
📍TLG Automotive

🚛🔍 Smoke diagnosis in progress at TLG Automotive.
When an Isuzu comes in with excessive smoke, guessing is not an option — proper diagnostics matter. In this case, Pablo, our lead technician, performed a full inspection and diagnostic process to trace the issue back to internal cylinder damage.
At TLG Automotive, we focus on finding the root cause, not just temporary fixes. Early diagnosis can help fleet owners and truck operators avoid bigger downtime and more expensive repairs later on.
✔ Medium-duty truck specialists
✔ Diesel diagnostics & repair
✔ Fleet maintenance support
✔ Real diagnostic process — not guesswork
📍TLG Automotive — Keeping medium-duty trucks and fleets moving.

Morning routine ☕
Before the first truck hits the bay, we plan the day — priorities, diagnostics, and timelines.
Because reducing downtime and keeping your fleet on the road starts with a solid plan. ✔ Diesel & medium-duty specialists
✔ Fleet-focused workflow
✔ Vehicle pickup & drop-off available
📍 TLG Automotive — Seattle, WA. ’s

Diagnostics in progress ​🔍
At TLG Automotive, we don’t guess — we diagnose it right the first time.
Busy schedule? We’ve got you covered.
✔ Vehicle pickup & drop-off available
✔ Diesel & medium-duty specialists
✔ Fleet priority service
📍 Keeping your business moving

Jeep Wrangler JK with fresh suspension components — installed to spec for better durability, handling, and real-world performance.
At TLG Automotive, we primarily support medium-duty trucks and fleet vehicles, but we bring the same level of precision and quality to every job that comes through our shop. No shortcuts.
This project was a special request from one of our local fleet customers.
Built to ride stronger and ready for any road — on or off 💪

🚨 Common mistake that can get expensive fast 🚨
Today we worked on a 2025 GMC Sierra that needed a fuel tank replacement. What happened? The customer accidentally added DEF (Diesel Exhaust Fluid) into the diesel fuel tank.
The good news? 🙌 The customer caught it early!
This is more common than you might think, since both fill ports are usually located close to each other and can be easily confused.
⚠️ Important:
DEF is NOT fuel. When it gets into the diesel system, it can cause serious damage to:
• Fuel injectors
• Fuel pump
• Entire fuel system
💸 If not caught in time, repairs can become extremely expensive.
✅ Tip: Official GM procedure (Boilerplate & steps):https://static.nhtsa.gov/odi/tsbs/2024/MC-11000493-0001.pdf
Always double-check before adding any fluid to your vehicle. A small mistake can turn into a big repair.
If you’re unsure or think something might be wrong with your vehicle, we’re here to help. 🔧

Success isn’t built by one person, it’s built by a team.
Thankful for every late day, every challenge handled, every laugh in between.
The shop runs because of this crew.
And the memories make it even better. 🏁❤️
Blessed to grow together.

Keeping fleets reliable and businesses moving.
Our technicians are performing essential maintenance like oil changes, fuel filters and battery replacements to help prevent breakdowns and costly downtime.
📍 Serving fleets in Seattle area
📞 Call TLG Automotive today to schedule your fleet service.