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Fleet & Truck Repair, Inspections, Diagnostics & More in Calgary

Are you looking for reliable and experienced mechanics for carrying out fleet and truck repairs, inspections, diagnostics, and more? At Amun Mechanical Inc., we believe in only offering the best services to our clients in Calgary. We are a complete mechanical services provider that works around the clock, offering an  emergency service, to make sure that our customers never have to go through major blockages in their daily business activities due to a transport or vehicle malfunction. We provide repairs and services for your fleet, trucks, trailers, and more, and also provide a regular maintenance service to keep your vehicles well-maintained and efficiently working.

A/C Repair and Service

It’s not very easy to get your truck serviced anywhere. The medium and heavy-duty trucks you use for work have special requirements that not every repair shop can understand or deal with. Don’t let your hard-working staff catch the heat due to this. Just give us a call at Amun Mechanical Inc., where we will get your A/C back up and running in no time so you can get back on the road quickly.

What Could Be Wrong With Your A/C?

Air conditioning systems are complex and require the smooth running of a lot of different parts and variables to be able to consistently keep you cool and comfortable while you’re on the road. If you’re facing troubles with your air conditioner, it could be due to two types of problems:


  • Mechanical problems: These include issues with the filter or dryer in your system, the condenser, compressor, evaporator, freon, hoses, orifice tube, and more.

  • Electrical problems: These include problems with your clutch, fuses, switches, condenser fans, relays, blower motor, etc.


At Amun Mechanical Inc., we are one of the most trusted brake service providers in Calgary. The brakes on your vehicles are probably the most crucial part of its make-up and driving control. One simply can’t afford to have malfunctioning brakes when on the road, especially with heavy-duty vehicles such as trucks, trailers, etc. Especially when you’re carrying freight in your vehicle, it becomes extremely important to keep your staff, your freight, and other people on the road safe by ensuring the smooth working of your vehicle’s brakes.

We’re here to help you ensure this safety by providing quick and reliable servicing and repairs for your vehicle’s brakes anytime and anywhere in Calgary, Airdrie, and surrounding areas. Whether you own a trailer, a truck, a fleet of different vehicles, or even recreational vehicles like RVs and motorhomes for your own use, we’re happy to help you keep the show on the road and not in garages.

How We Can Help

Amun Mechanical Inc. provides a range of services to ensure the smooth functioning of your brakes and vehicles. These include:


  • Diagnosing and repairing air and hydraulic brake systems

  • Carrying out brake adjustments

  • Checking air chambers for leaks and issues

  • Checking drums, rotors, and linings for wear

  • Checking wheel seals for leaks

  • Checking hub oil

  • Inspecting S-cams and the condition of the springs

Contact us today to get your brakes looked at and avoid misfortunes on the road.

Computer Diagnostics

Computer diagnostics might seem straightforward from a distance, but they are far from this when you actually get into diagnosing what’s wrong with your vehicle. This is especially the case for medium and heavy-duty vehicles like trucks, trailers, and similar vehicles. Computer diagnostics help you in figuring out where the problems lie in your vehicle, but the accuracy of this depends entirely on the person performing the diagnostics. This is why it’s so important to go to a shop that knows what they’re doing and can help you quickly and effectively figure out the problem by carrying out these diagnostics.

What Does the Light Mean?

Vehicles have on-board diagnostics (OBD) that inform drivers when something might be wrong with their vehicle. However, you might not be able to tell there is a problem, or even where the problem lies, without hooking up a computer for diagnosis. Still, here is what the lights on your OBD system might mean:


  • If the light turns on: The light tells you what part of the vehicle you should be paying attention to. It could light up for “check engine” or tell you to “service engine soon”. It can’t tell you exactly what’s wrong with your engine, but just that you should get it checked by a professional soon or it may cause problems.

  • If the light blinks: If your “check engine” light is blinking, this means that you should head to the repair shop immediately so that the issue can be diagnosed and fixed. Drive carefully and shed all heavy equipment while moving to the shop as soon as possible.

  • If the light goes off: Sometimes, the problem lies in your light and not your vehicle itself. If the light goes off while you’re driving to the shop, you should be in the clear from any danger or issues. Just make sure it doesn’t turn on again or start blinking.

If you need a reliable team of professionals for running computer diagnostics on your vehicle, contact Amun Mechanical Inc. today.

CVIP and Safety Inspections

The Commercial Vehicle Inspection Program (CVIP) is a mandatory inspection for Calgary and other parts of Canada to ensure the safety and security of all commercial vehicles on the Canadian highways. These inspections set the standard for your vehicle’s maintenance, and you are given a certificate and a windshield decal upon successfully passing an inspection. At Amun Mechanical Inc., we are happy to offer our services as certified CVIP inspectors to help you safely drive on Canadian roads and avoid fines and penalties. We also offer CVIP reports and insurance inspection reports.

Do You Need to Get CVIP Inspection Done?

If you own a commercial vehicle, such as a truck, trailer, bus, or any other type, you must have a current certificate and decal on your vehicle after inspection to avoid having to pay fines and penalties. You might need to get this inspection done annually or semi-annually, depending on the type of vehicle you own. Usually, smaller vehicles carrying less load are inspected every year, while bigger vehicles such as buses get them done twice a year.

What Does the Inspection Include?

When we inspect your vehicle, some of the things we check include:


  • Checking the condition of your brakes, glass, steering, suspension, etc.

  • Checking your wheels for wear

  • Checking electricals and lighting

  • Checking exhaust and muffler systems

  • Checking the vehicle for broken boards, corrosion on the frame, etc.

Contact Amun Mechanical Inc. to get your vehicle inspected today.


Are you having trouble with your vehicle’s differentials? You’re not alone. It’s common in medium and heavy-duty trucks to have issues with the rear differentials of their truck, the gear which lets your wheels rotate at different speeds. This gear is especially important when driving a large vehicle and going through a turn, as it requires being able to move the wheels at different speeds and carefully control your position on the road. Amun Mechanical Inc. can help you identify the problems and fix your differentials so that you can get back on the road quickly.

How to Know It’s the Differentials

If you’re wondering whether it’s your differentials causing you trouble or some other part, here are some things you can look out for:

  • Howling If you hear a howling noise, this might be due to a lot of wear on your differentials. This howling might occur when you’re travelling at high speeds or even all the time.

  • Rumbling A rumbling or whirring sound might occur due to wear on your carrier or wheel bearings and might be a sign that you need to get them replaced.

  • Banging If you’re hearing a clicking or banging sound, it might be due to broken gears, wear in clutches, or even lack or too little lubrication. Depending on how often you hear these clucking sounds, the problem can be identified.

  • Vibrations A vehicle that is vibrating more than the norm or steadily increasing in relation to the speed can be a sign that you need to get your vehicle checked for wear and other issues such as an out-of-balance driveshaft.

If you’ve heard strange sounds from your differentials, bring your vehicle to us at Amun Mechanical Inc., and we’ll have it sorted out in no time.

DPF Deletes

A lot of owners of diesel-based vehicles delete their diesel particulate filters (DPFs) to improve performance, decrease the usage of fuel, and save money, among other reasons, such as giving their unit more power. DPFs can be very costly and high-maintenance, which is why many people choose to delete them and the after-treatment systems they’re included in. Once they are deleted, the ECU is reprogrammed to account for the sensors that are now missing. While doing this is legal in Calgary and Alberta, it might lead to voiding the manufacturer’s warranty for your vehicle, if applicable.

Benefits of DPF Deletes

Though results may vary depending on the vehicle, a DPF delete usually leads to:


  • A decrease in maintenance costs

  • Lesser downtime

  • A decrease in maintenance and servicing hassles

  • Increase in engine life

  • Better fuel mileage

A DPF delete typically costs between $3,000 to $10,000. Contact Amun Mechanical Inc. today if you’re considering a DPF delete for your vehicle.

Engine Service

Engine repair and service are at the heart of vehicle repair. Being the one part of your vehicle that keeps it all running, engines are probably the part that suffers the most wear and abuse throughout their lives. Especially when driving heavy-duty commercial vehicles in the harsh Canadian winters, your engines are one of the most important parts that keep your vehicle functioning properly. That’s why, at Amun Mechanical Inc., we provide the services of some of the best mechanics in Calgary to help you ensure smooth functioning and driving.

Our Services

From general repairs to maintenance programs, we provide everything you need to get back on the road. Our engine services include:


  • Computer diagnostics

  • Total teardown and rebuilding

  • Engine preventative maintenance programs

  • Vale set-ups and tune-ups

  • Repairs for fuel systems

  • Long and short block installs

Fuel Flush

It’s not just external dirt that you need to be worried about when it comes to your vehicle; internal dirt, especially when it comes to diesel-based vehicles, is an even bigger worry. It’s important to ensure that your engine and other parts of your vehicle are clean internally so that there is no corrosion, clogs, and more happening due to dirt. Diesel, while refined for use in vehicles, is still not clean enough to be completely rid of impurities and can cause tanks to get contaminated and dirty.

Not just tanks, but even other parts of your vehicle can suffer from dirt and corrosion, such as coolers, induction systems, etc. At Amun Mechanical Inc., we can help you deal with all the internal dirt and ensure that your engine is working smoothly, safely, and is cleaner than ever with our fuel flushing services.

Heavy Truck Clutches

The more frequently you use your clutch while driving, the more wear and stress it causes to the different parts of your vehicle’s machinery. This can lead to clutch failures and the need for more frequent servicing than required due to the unnecessary strain put on your vehicle and the friction damage caused by the usage of your clutch. If you’re having trouble with your clutch, Amun Mechanical Inc. can help correct the issues and put maintenance programs in place to ensure your vehicle is good-to-go for a long time.

Watching Out for Clutch Troubles

While maintenance and servicing at the shop are always there, here are some things to watch out for and keep in mind to ensure the longevity of your clutch:


  • Don’t rest your foot on the clutch while driving, as it causes unnecessary wear on the clutch and can cause slippage.

  • See if you’re using the gear shift and the clutch correctly, especially if you’re new to driving a manual transmission or heavy-duty fleet vehicles.

  • Check if there are any strange clucking noises when you use your clutch or jerking when you move between gears. This could mean a problem you should get checked out before it becomes big enough to require replacement.

Power Train

The powertrain is an important part of your vehicle, be it commercial or otherwise, that provides a force to your wheels to help the vehicle move forward or backward. Without this component in working condition, your vehicle can’t move. It’s especially important for commercial vehicles to have a powertrain in good working condition, as that is what ensures that you are able to transport freight and travel for hours upon time without issues. There are a lot of reasons why your powertrain might not be working, from accidents to general wear and tear to poor maintenance. If you’re facing issues with your powertrain, schedule a service with Amun Mechanical Inc. to get back on the road again.

Preventative Maintenance

It’s not enough to get your vehicle repaired when facing troubles or send it into servicing once in a while when you think it’s required. Especially for commercial vehicles that must always be in a reliable working condition, it’s important that you regularly get your vehicle checked for anything that could lead to malfunction or an emergency when you’re on the road. Our preventative maintenance program at Amun Mechanical Inc. can help you spot problems before they become big, saving you unnecessary costs on repairs and replacements that were actually avoidable.

How Does Preventative Maintenance Work?

At Amun Mechanical Inc., we can help you make a scheduled maintenance plan that works for your schedule and also keeps your vehicles or fleet on the road for longer. When you approach us for this service, we will create a plan that will cover your entire fleet and that all your vehicles in that fleet are accounted for with an individual maintenance schedule according to its make, life, and requirements. We also account for any special cases or vehicles your fleet might include that require their own separate maintenance plan.

Preventative Maintenance Inspection (PM Report)

Properly maintained vehicles reduce unscheduled repair and downtime. The purpose of preventive maintenance is to extend the life of a vehicle or equipment by predicting and preventing failures. The implementation of the process leads to reliable and efficient vehicle performance and cuts down on unscheduled repair and breakdown. This process includes inspection, computer scanning, and oil analysis.

Amun Mechanical Inc.’s mechanics can perform a complete inspection of these components:


  • Engine

  • Transmission

  • Powertrain

  • Driveline

  • Brakes

  • Suspension

  • Steering

  • Steering component

  • Wiring and electrical

  • Safety equipment

  • 5th wheels and attachments

  • Scan fault codes and collect history

  • Visual inspection

  • Diagnose leaks and source of the leak

  • Inspect all hydraulic component functions

  • Inspect hoses, fittings, electrical harnesses

  • Inspect for tire wear/damage and tire pressure

Preventative Maintenance Report

Oil Analysis Report

Oil sample testing for major components such as engines, transmissions differentials, final drives, and hydraulic systems enables us to foresee parts failure within these systems such as pumps, bearings, seals, gears, etc. This preventative maintenance tool is a preferred method to monitor the system at regular intervals with the purpose of determining not only the number of particles present in the oil but also the rate of increase, which is used to prepare for component failure before it happens. 

A routine oil analysis consists of the following tests:


  • Metals analysis

  • Viscosity test

  • Solid sediment and water

Certain specific cases also call for acid number and/or base number. Oil analysis is recommended every three months.

Trailer Repair

At Amun Mechanical Inc., we like to ensure that our customers get only the best services possible to keep them on the road without pesky failures or interruptions. Still, sometimes these are unavoidable, and our team works hard to ensure that we get you back on the move as quickly as possible with our premium trailer repair services. Whether it’s your engine, the brakes, the air line, or exterior components such as the roof, we can provide you with the complete repair services you need to get your trailer back in shape and ready to go.

Full-Service Trailer Repairs

We provide a full range of trailer services in Calgary, including:


  • DOT inspections

  • Preventative maintenance

  • Brakes and air line repairs

  • Lift gates and landing gears

  • Overhead, swing doors, and roof repairs

  • Lights and wiring

  • Suspension and springs


The transmission differentials on your vehicle, especially if you own a commercial vehicle or a fleet, is an important part of ensuring a safe drive and smooth functioning while you’re on the road. That’s why it’s crucial that you get any problem you might be encountering with transmissions as quickly as possible, with a professional and reliable repair shop, so that you don’t have to face unfortunate incidents and malfunctions on the road.

How Can We Help?

We provide the following services to ensure you have a safe and smooth driving experience:


  • Transmission and differential servicing

  • Transmission exchanges for standard and automatic transmissions

  • Transmission rebuilds for standard transmissions

  • Driveline repairs and replacements

  • Clutch and PTO repairs and replacements

Welding and Fabrication

Are you looking for a reliable and professional team for your custom welding and fabrication project on your fleet or vehicle? You’ve come to the right place. At Amun Mechanical Inc., we are dedicated to ensuring our clients’ visions while ensuring you get exactly what you need from your project. We’ve been in the business for years, so we can reliably say that a custom welding and fabrication job went wrong can lead to high costs on repairs and replacements for you. That’s why you should always go to trustworthy, reliable, and experienced professionals for your needs.

How We Help

Though this is not an extensive list, we provide our welding and fabrication services for the following cases:


  • Performing simple repairs or a quick custom job to get you back on the road

  • Adding a hitch, lights, and other safety features for your trailer

  • Fixing and reinforcing fenders

  • Fixing and reinforcing fenders Providing repairs for snowplows

  • Covering up lost paint and fixing damage from rust

Wiring and Electrical

The wiring and electricals of your commercial vehicles, trucks, and fleet are extremely important in ensuring smooth performance and lesser downtime. Your trucks require electricity and proper wiring to operate, such as parts like your headlights, air conditioners, dashboards, etc. However, these are also easily affected parts of your vehicle, as anything from rodents to simple dislodging can cause a malfunction in your systems. At Amun Mechanical Inc., we can help you keep your wiring and electrical systems functioning at their best and in harmony with your vehicle. No matter what the problem may be, our experienced mechanics are equipped with the skills and the tools to track down the issue and fix it in no time.

Truck Downtime?

We provide a full range of services, from DPF deletes to repairs and maintenance, to help you keep your commercial vehicles on the road for a long time.

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