TLG Automotive

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TLG Automotive TLG Automotive is a family owned company based in South Seattle. We specialize in but are not limited to medium heavy duty fleet maintenance and repair work.

10/01/2026

Gasoline in a diesel truck… 😬⛽
This RAM 2500 Cummins came to TLG Automotive after gasoline was accidentally added to the diesel fuel system.
Putting the wrong fuel in a diesel truck can quickly turn into an expensive problem, so proper diagnosis and fuel-system service are critical before getting the truck back on the road.
Our technicians diagnosed the concern and worked through the fuel system to correct the contamination and make sure this RAM was ready to run on diesel again. 🔧
Mistakes happen — what matters is getting the truck to a shop that understands diesel fuel systems and proper diagnostics.
🔧 Diesel Diagnostics
⛽ Fuel System Service
🛻 RAM / Cummins Diesel Repair
🔍 Diesel & Truck Inspections
📍 TLG Automotive | Seattle, WA
Diesel • Trucks • Medium-Duty • Fleet Repair

09/26/2026

No start? Diagnose first don’t just guess. 🔍🔧
This Ford Mustang came into TLG Automotive with a no-start concern. After performing a proper diagnostic, our technicians confirmed that the battery had failed and was the cause of the no-start condition. 🔋
While the vehicle was in the shop, we also performed a full vehicle inspection and took care of some needed maintenance:
🔋 Battery Replacement
🛢️ Engine Oil & Filter Change
💨 Engine Air Filter Replacement
🔍 Full Vehicle Inspection
New battery, maintenance taken care of, and this Mustang is back on the road. 🐎💨
At TLG Automotive, we believe in diagnosing the problem first and recommending what the vehicle actually needs.
📍 TLG Automotive | Seattle, WA
Auto • Diesel • Truck • Fleet Repair

09/17/2026

Your vehicle works hard.
The shop behind it should too. 🔧
At TLG Automotive, we believe in proper diagnostics, clear communication, and repairs done right not replacing parts until something works.
From preventive maintenance to complex repairs, our goal is simple: keep your vehicle running and reduce downtime.
Around the shop lately:
🔥 Diesel & medium-duty repairs
🔥 Fleet maintenance
🔥 Engine & transmission work
🔥 Diagnostics
🔥 Brakes & suspension
TLG Automotive | Seattle, WA

08/22/2026

A warning light can be only the beginning. 🔍
This Jeep came in after experiencing a shudder/shutdown concern, a flashing glow plug light, and a check engine light. During testing, our technician uncovered a faulty glow plug circuit—and unexpected rodent damage to the engine wiring harness. 🐭⚡
That’s why proper testing matters: diagnose the complete problem before replacing parts.
📍 TLG Automotive | Seattle, WA
Gas • Diesel • Medium-Duty Repair

Address

5200 4th Avenue S
Seattle, WA
98108

Telephone

(425)4637640

Website

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