Diesel Truck Mechanic Shops in Calgary, AB

Find trusted diesel truck mechanic services in Calgary. Compare prices, read reviews, and book online.

✓ Verified Shops ✓ Online Booking ✓ Real Reviews
Beyond Auto
Verified
Calgary • ≈ 2 km
BE
285127 Frontier Rd #12, Calgary
★ 4.9
415 Google reviews
Response ≈ 24 min • $ • Quotes free
Diesel Truck Mechanic Auto Accessories & UpgradesEuropean & Speciality Cars
📞 5878871161 • Free quote • Verified
Affordable auto repair
Verified
Calgary • ≈ 2 km
AF
3705 29th street NE, Calgary
Response ≈ 23 min • $$ • Quotes free
Diesel Truck Mechanic Auto MechanicOil Change & Lube
📞 4034524052 • Free quote • Verified
Deep Mobile Truck Mechanic
Calgary • ≈ 8 km
DE
8111 Hunterview Drive NW, Calgary, AB T3K1B2, Canada, Calgary
★ 5.0
292 Google reviews
Response ≈ 37 min • $$ • Quotes free
Diesel Truck Mechanic Truck Mechanic
📞 (587) 805-4120 • Free quote • Verified
Elite Diesel Performance Inc
Calgary • ≈ 3 km
EL
6148 46 St SE, Calgary, AB T2C 4X4, Canada, Calgary
★ 5.0
1 Google reviews
Response ≈ 58 min • $$ • Quotes free
Diesel Truck Mechanic
📞 (555) 000-0000 • Free quote • Verified
FINETUNE CALGARY DIESEL INC
Calgary • ≈ 6 km
FI
7750 40 St NE, Calgary, AB T1X 0L4, Canada, Calgary
★ 5.0
53 Google reviews
Response ≈ 31 min • $$$ • Quotes free
Diesel Truck Mechanic
📞 (403) 463-3646 • Free quote • Verified
Punjabi King Mobile Truck Repair
Calgary • ≈ 3 km
PU
8111 Hunterview Dr NW, Calgary, AB T3K 1B2, Canada, Calgary
★ 5.0
498 Google reviews
Response ≈ 46 min • $$ • Quotes free
Diesel Truck Mechanic Truck MechanicTruck & Heavy Duty
📞 (647) 640-4448 • Free quote • Verified
Heavy Wrenching Diesel Ltd
Calgary • ≈ 6 km
HE
3303 57 Ave SE B, Calgary, AB T2C 0B2, Canada, Calgary
★ 4.9
191 Google reviews
Response ≈ 23 min • $ • Quotes free
Diesel Truck Mechanic
📞 (403) 724-1917 • Free quote • Verified
Lucky Truck Mechanic
Calgary • ≈ 2 km
LU
53 Martindale Ct NE, Calgary, AB T3J 2V8, Canada, Calgary
★ 4.9
218 Google reviews
Response ≈ 37 min • $$ • Quotes free
Diesel Truck Mechanic Truck Mechanic
📞 (587) 575-5855 • Free quote • Verified
Schultz Diesel Sports
Calgary • ≈ 5 km
SC
3303 57 Ave SE, Calgary, AB T2C 0B2, Canada, Calgary
★ 4.8
177 Google reviews
Response ≈ 20 min • $$ • Quotes free
Diesel Truck Mechanic
📞 (403) 523-9003 • Free quote • Verified
Calgary Diesel Service Inc
Calgary • ≈ 9 km
CA
4013 15a St SE, Calgary, AB T2G 3N9, Canada, Calgary
★ 4.6
13 Google reviews
Response ≈ 21 min • $$$ • Quotes free
Diesel Truck Mechanic
📞 (403) 262-5750 • Free quote • Verified
Mk Diesel Works Inc.
Calgary • ≈ 5 km
MK
8616 44 St SE BAY E, Calgary, AB T2C 2P6, Canada, Calgary
★ 4.6
21 Google reviews
Response ≈ 38 min • $$ • Quotes free
Diesel Truck Mechanic
📞 (587) 899-5301 • Free quote • Verified
DDiesel Truck & Trailer Repair Inc.
Calgary • ≈ 9 km
DD
314 Exploration Ave SE #26, Calgary, AB T3S 0C1, Canada, Calgary
★ 4.5
22 Google reviews
Response ≈ 30 min • $ • Quotes free
Diesel Truck Mechanic
📞 (403) 683-0060 • Free quote • Verified
Showing 13 mechanics • Load more
Online booking workflow

Calgary bookings,
zero phone tag.

STEP 01
Search

Filter Calgary shops by service, rating, distance, open now.

13 results • verified
STEP 02
Request Booking

Send vehicle + service details. Get a firm quote or pick a slot.

Avg reply 42m
STEP 03
Shop Approves

Owner confirms time, price, and bay availability. One tap.

Calendar & SMS sync
STEP 04
Appointment Confirmed

You get confirm + reminders + live status tracking.

Stripe receipts
Calgary customer reviews

Real bookings, real reviews

Verified Reviews for Diesel Truck Mechanic
★ ★ ★ ★ ★

“I have been getting repairs done from Gurmail for about 4 years now for my Volvo trucks. There’s a few things I love about his shop. 1. He always lets you know exactly what’s wrong with your vehicle, how long it will take to fix it, and the price upfront. He also keeps you in the loop during the repairs. 2. Everything is done in a timely manner. The repairs never go to the next day. 3. If I need his help on the road, I can count on him to give me honest information and help me get to his shop. 4. All the guys that work there know what they’re doing.”

Iqbal Jatana • Diesel Truck Mechanic at FINETUNE CALGARY DIESEL INC, Calgary
★ ★ ★ ★ ★

“Excellent service friendly mechanic my coolent pipe is blown out call them and mechanic shows up within 20 minutes fair price did a good job. I recommend they saved me a load.”

Harpreet Saran • Diesel Truck Mechanic at Punjabi King Mobile Truck Repair, Calgary
★ ★ ★ ★ ★

“One of the best shops I've been to, the owner is friendly and helpful. 100% recommend to anyone who needs work done to their car”

Giulio De Corti • Diesel Truck Mechanic at Beyond Auto, Calgary
★ ★ ★ ★ ★

“I had a major TCM issue with my Volvo VNL, and I honestly couldn’t have asked for better help than I received from MK Diesel Calgary.<br><br>They went above and beyond to diagnose the problem, find the correct TCM part when it wasn’t easy to locate, get everything repaired and calibrated properly, and make sure the truck was ready to get back on the road. They didn’t just do the repair and send me on my way—they actually took the time to help me through the whole situation and get me back to work.<br><br>A special thank you to the owner, Jasmeet, for personally going above and beyond to help me through the entire process. His dedication, communication, and willingness to help made a stressful situation much easier.<br><br>When you’re a truck driver and your truck is down, every day matters, and MK Diesel understood that.<br><br>Highly recommend MK Diesel Calgary to any truck driver or owner-operator looking for a shop that actually cares about getting the job done right. Thank you, Jasmeet and the entire MK Diesel team, for everything! 🙏🚛⭐⭐⭐⭐⭐”

Zia Sarwar • Diesel Truck Mechanic at Mk Diesel Works Inc., Calgary
For shop owners

Get More Customers
Through Boommar

Calgary drivers searched “auto mechanic” 8,400 times last month. Claim your listing, turn searches into bookings.

• Online Booking
• Lead Tracking
• Review Management
• Listing Analytics
Calgary Pro – last 30 days
+41
booking requests
4.8★
avg rating
31m
median reply
92%
show-up rate
Calendar sync • Stripe • SMS reminders • Review automation

Find a Best Diesel Truck Mechanic in Calgary, AB

Calgary serves as the service hub for diesel trucks operating throughout southern Alberta's oil patch, agricultural sector, and construction industry — trucks that accumulate high hours under heavy load, operate in extreme cold, and face specific emission system challenges from the sustained idling and low-speed operation common in oilfield and construction environments.

Common Diesel Truck Issues

Contaminated diesel fuel or clogged fuel filters restricting flow
Failing fuel injectors or high-pressure fuel pumps (HPFP) losing rail pressure
Clogged EGR valves and cracked EGR coolers causing overheating and coolant loss
Turbocharger bearing failure, sticking variable-geometry vanes, or boost leaks
Glow plug or intake heater malfunctions preventing cold-weather starting
Diesel Particulate Filter (DPF) clogging from excessive idling or short trips

When to Book a Diesel Mechanic

Hard starting or extended cranking, especially in cold weather
Excessive black smoke (rich running), white smoke (coolant leak), or blue smoke (oil burning) from the exhaust
Distinct metallic "knocking" or "clatter" sound indicating injector or bearing failure
Check Engine light, Water in Fuel warning, or emission system derate mode
Significantly reduced towing power, turbo lag, or sluggish acceleration
Frequent forced DPF regeneration cycles or "Exhaust Filter Full" warnings on the dash

Diesel Truck Mechanic Services Available

Diesel Fuel System Repair

Injector replacement, high-pressure fuel pump rebuilds, and rail pressure testing

Turbocharger Diagnostics & Replacement

Boost leak testing, VGT actuator repair, and full turbo replacement

EGR/DPF/DEF Emission System Service

EGR cooler replacement, DPF cleaning/baking, and DEF injector diagnostics

Glow Plug & Cold Start Service

Testing, extraction of seized glow plugs, and intake heater repair

Diesel Engine Diagnostics

Factory-level scanning for Cummins, Duramax, Power Stroke, and Detroit engines

Diesel Performance Tuning

ECM calibration, exhaust upgrades, and intake system optimization

Diesel Truck Mechanic Tips

Always purchase diesel fuel from high-volume, reputable stations to minimize contamination risk
Drain the water separator at every oil change and immediately if the Water in Fuel light illuminates
Use a high-quality winter anti-gel additive when temperatures consistently drop below -15°C
Avoid excessive idling—it prevents the DPF from reaching regeneration temperature and causes clogging
Let the turbo cool down by idling for 30-60 seconds before shutting off the engine after heavy towing
Follow the severe-duty oil change interval if you tow, haul, or drive in extreme temperatures regularly

Frequently Asked Questions

Are diesel truck repairs more expensive than gas engine repairs in Calgary? +
Generally, yes. Diesel engines operate at much higher pressures and tolerances than gasoline engines. Components like fuel injectors ($300-$600 each), high-pressure fuel pumps ($1,500-$3,000), and turbochargers ($1,500-$3,500) are significantly more expensive. Diesel-specific diagnostic tools and specialized labor also contribute to higher repair costs.
How much does a diesel fuel injector replacement cost in Calgary? +
A single diesel injector replacement costs $500-$1,000 including parts and labor. Replacing all injectors on a common 6-cylinder diesel (Cummins 6.7L, Duramax 6.6L, or Power Stroke 6.7L) typically runs $3,000-$6,000+. It's often recommended to replace all injectors at once to avoid repeat labor costs.
What does it mean when my diesel truck goes into derate or limp mode? +
Derate mode is the engine's ECM intentionally reducing power to protect itself from further damage, usually triggered by emission system faults (DPF, DEF, EGR), overheating, or low oil pressure. You should drive only to the nearest safe repair facility at reduced speed. Ignoring derate can lead to a complete engine shutdown.
How often should I service my diesel truck's DPF system? +
Most diesel DPF systems require a professional cleaning (ash removal) every 150,000-300,000 km, depending on driving conditions. Trucks driven primarily in city stop-and-go traffic or at idle may need it sooner. A DPF cleaning costs $300-$600 and is far cheaper than a replacement filter ($2,000-$5,000+).