Need diesel repairs but unsure where to start? Whether it’s engine issues, coolant leaks, or brake problems, Whelan Truck Repair provides quick, reliable diesel repairs to get your truck back on the road fast.

Full-Service Diesel Truck Repair In Ottawa, ON
Whelan Truck Repair offers complete general diesel repair services, tackling issues across all major systems to keep your truck running reliably. We partner with both fleet managers and owner-operators to reduce downtime and extend vehicle life. From suspension and brake problems to pre-Ontario DriveOn inspections and preventative maintenance, our team diagnoses and fixes issues efficiently and correctly. Every repair is backed by DriveON compliance and designed to help you pass inspections the first time.
Signs your truck needs diesel repair:
- Pulling to one side while driving or braking
- Excessive bouncing or rough ride over uneven roads
- Dashboard warning lights or system fault codes
- Visible leaks under the vehicle (oil, coolant, or fuel)
- Failing CVIP inspections or warnings of non-compliance
What Makes Whelan Truck Repair Different?
As a proud participant in Ontario’s DriveON Program, we use the province’s official digital platform to inspect and document Ontario DriveOn-related repairs with precision and transparency. Our team is known for building long-term relationships with drivers and fleets who trust us to maintain both performance and compliance. We make it easy for you to keep your trucks running smoothly while meeting all provincial regulations.
- DriveON-certified for inspections and repair logging
- Honest assessments and clear communication at every stage
- In-shop repairs for all systems—from suspension to engine
Contact Us About Diesel Truck Service Now: Call 613-831-7677!
Don’t wait for a small problem to turn into a roadside breakdown. Call 613-831-7677 to book a full-service diesel repair or Ontario DriveOn prep today. At Whelan Truck Repair, we’ll get your truck inspected, serviced, and safely back on the road.
FAQs
What Areas Do You Serve For Diesel Repair?
As well as Ottawa, ON, we proudly serve:
Gatineau, QC; Kanata, ON; Orléans, ON; Carleton Place, ON; Rockland, ON; Arnprior, ON; Smiths Falls, ON
How do I know if my suspension needs repairs?
Watch for excessive bounce, drifting while turning, or uneven tire wear. If your ride feels harsh or unstable, it could be due to worn shocks, leaf springs, or airbags—all of which require attention to avoid further damage.
What happens if I fail a Ontario DriveOn inspection?
A failed Ontario DriveOn means you can’t legally operate the vehicle until repairs are completed and re-inspection is passed. Common issues include brake faults, tire damage, suspension issues, or lighting failures. Prompt repair is essential for compliance.
How Can I Get Diesel Repair?
Interested in professional diesel repair for your truck or fleet? Give us a call today at 613-831-7677 to book an inspection or repair service with Whelan Truck Repair.
Our Services
Whelan Truck Repair’s truck services are built around quality, consistency, and long-term care. We understand the importance of preventive maintenance to the life of your fleet.
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