Diesel Service and Repair in Pasco, WA
Diesel Service and Repair in Pasco, WA
Your diesel truck works hard, whether it's towing a boat to the Columbia, hauling a trailer through Tri-Cities harvest season, or crossing the Blue Mountains in January. At Speck Buick GMC, our service team keeps diesel engines running strong with expert maintenance, accurate diagnostics, and lasting repairs.
We service GMC Sierra HD and Sierra 1500 diesels, along with Chevrolet Silverado, Ford Power Stroke, and Ram Cummins trucks. Drivers from Pasco, Kennewick, Richland, and West Richland trust us to get them back on the road fast.
Our Diesel Services
From routine maintenance to major engine work, we handle it all under one roof:
- Diesel oil and filter changes with oil rated for your engine
- Fuel filter and water separator service to protect injectors from contamination
- Fuel injector testing, cleaning, and replacement
- Turbocharger diagnosis and repair, including boost leaks and VGT issues
- Diesel particulate filter (DPF) cleaning, forced regeneration, and replacement
- Diesel exhaust fluid (DEF) and SCR system repair, including DEF heaters, pumps, and sensors
- EGR valve and cooler service
- Glow plug and cold-start diagnostics, essential for Eastern Washington winters
- Cooling system service for radiators, water pumps, and coolant flushes
- Transmission service for Allison, 10-speed, and heavy-duty transmissions
- Computer diagnostics for check engine lights and derate or limp mode
- Pre-towing inspections before trailer or fifth-wheel season
Diesel Makes and Engines We Service
| Make | Engines | Common Trucks |
|---|---|---|
| GMC/Chevrolet | 6.6L Duramax, 3.0L Duramax | Sierra 2500HD/3500HD, Sierra 1500, Silverado HD, Yukon, and Tahoe |
| Ford | 6.7L, 6.4L, 6.0L, and 7.3L Power Stroke | F-250, F-350, F-450 Super Duty |
| RAM | 6.7L Cummins | Ram 2500, Ram 3500 |
Signs Your Diesel Needs Service
Don't wait for a breakdown, schedule a visit if you notice:
- Hard starts, especially on cold mornings
- Excessive black, white, or blue exhaust smoke
- Loss of power or a sluggish response when towing
- Lower fuel economy than usual
- A "Reduced Engine Power," DPF, or DEF warning message
- Knocking, ticking, or unusual engine noises
- Frequent active regenerations or a regen that won't finish
Why Tri-Cities Drivers Choose Speck Buick GMC in Pasco
Diesel-trained technicians who know high-pressure fuel systems and modern emissions controls
Factory diagnostic equipment for fast, accurate answers, not guesswork
Genuine OEM parts that protect performance and warranty coverage
Friendly staff with a reputation for delivering excellent customer service
Online scheduling for appointments that fit your work week
Local and family-owned, serving Pasco and the Tri-Cities
Diesel Service Frequently Asked Questions
1. How often should I change the oil in my diesel truck?
It depends on your engine and how you drive. Most modern diesel pickups use an oil life monitor, and heavy towing or dusty conditions may call for shorter intervals. Check your owner's manual, or ask our advisors for a recommendation based on your driving.
2. What is a DPF, and why does it need service?
The diesel particulate filter traps soot from the exhaust. Your truck burns that soot off through a process called regeneration. Lots of short trips can keep a regen from finishing, which leads to clogging, warning lights, and reduced power. We can clean, regenerate, or replace the filter.
3. Why is my truck in limp mode?
Diesels often reduce power to protect the engine when they detect a problem with the DEF system, DPF, turbo, or a sensor. Our diagnostic tools pinpoint the cause so we can fix it right the first time.
4. Do you service diesel trucks that aren't GMC?
Yes. We service Ford Power Stroke and Ram Cummins diesels in addition to GMC and Chevrolet Duramax engines.
5. How often should I replace my fuel filter?
Diesel fuel filters protect expensive injectors and pumps, so don't stretch the interval. Follow your manufacturer's schedule, and drain the water separator whenever your truck alerts you.
6. Can I wait with my truck?
Yes. Many routine services can be done while you wait. Ask about current availability when you book.
| Monday | 8:30AM - 7:00PM |
| Tuesday | 8:30AM - 7:00PM |
| Wednesday | 8:30AM - 7:00PM |
| Thursday | 8:30AM - 7:00PM |
| Friday | 8:30AM - 7:00PM |
| Saturday | 8:30AM - 7:00PM |
| Sunday | 10:00AM - 6:00PM |
| Monday | 7:30AM - 5:30PM |
| Tuesday | 7:30AM - 5:30PM |
| Wednesday | 7:30AM - 5:30PM |
| Thursday | 7:30AM - 5:30PM |
| Friday | 7:30AM - 5:30PM |
| Saturday | 8:00AM - 4:30PM |
| Sunday | Closed |
| Monday | 7:30AM - 5:30PM |
| Tuesday | 7:30AM - 5:30PM |
| Wednesday | 7:30AM - 5:30PM |
| Thursday | 7:30AM - 5:30PM |
| Friday | 7:30AM - 5:30PM |
| Saturday | 8:00AM - 4:30PM |
| Sunday | Closed |
Negotiable $200 dealer documentary service fee is included in the total sale price or capitalized cost. All prices plus applicable sales tax, title, and licensing. One vehicle unless otherwise noted and subject to prior sale without notice. Photo for illustration purposes only. See dealer for details. Price expires today.
Courtesy Transportation Vehicles have more miles than a normal retail unit.
MPG estimates on this website are EPA estimates; your actual mileage may vary. For used vehicles, MPG estimates are EPA estimates for the vehicle when it was new. The EPA periodically modifies its MPG calculation methodology; all MPG estimates are based on the methodology in effect when the vehicles were new (please see the Fuel Economy portion of the EPA's website for details, including a MPG recalculation tool).
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Payload and Towing Disclaimer: Max payload/towing estimate ratings shown. Additional options, equipment, passengers, and cargo weight may affect payload/towing weights. See dealer for details.
The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.