If you are searching for “Diesel Engine Repair Service“, “Diesel Repair Shop” or “Diesel Mechanic Near Me“, Automotive Diagnostic Specialties can help! Our Diesel Engine Mechanics perform repairs on Cummins, Duramax and Power Stroke diesel engines for an affordable price. Diesel trucks are many times the backbone of commercial businesses and we understand that they need to be out in the field instead of in the shop.  Let one of our Master ASE Certified Diesel Repair Mechanics help you properly maintain and/or repair your diesel powered vehicle. Give us a call today at (480) 961-8704 for Diesel Engine Repair Service estimates or with any questions.

Diesel Engine Mechanics For Fleet, Light, Medium Duty Trucks & Diesel Powered Cars 

ADS Auto Repair is a Bosch Certified diesel repair shop located at 6835 W Chandler Blvd, Chandler, AZ 85226, right off the I-10 on the south-side of W Chandler Blvd. Our shop hours are Mon-Fri, 7:30AM to 5:30PM.

At ADS Auto Repair our AAA Approved and ASE Certified Mechanics stay current on latest training, technology, and equipment to diagnose and repair your Diesel powered vehicle in a timely manner with only top quality parts.  We only sell and install OEM parts that we would install on our own vehicles.


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Read More Testimonialsdiesel truck repair chandler az The only place I will take my diesel truck to get any type of work done. Thank you for the great service I have received over the past 5 years. Thank you!Eric T.

Diesel Engine Repair Services

At ADS Auto Repair we specialize in Dodge Cummins diesel repair, Mercedes Benz, Deutz, Ford Power Stroke, MTU, Detroit Diesel, International, and GMC/Chevrolet Duramax diesel repair services.  We service several fleet’s and understand how important it is to have your vehicles in top notch shape and out on the road earning you money, not sitting in the shop.  Everyone at ADS Auto Repair takes “Customer Service” seriously and we would love the opportunity for earn your business.  Give us a call today to get your diesel motor in tip top shape and running reliably in the field.

ADS Auto Repair is a full-service diesel truck repair and diesel maintenance shop located in Chandler. We service and repair large and small diesel engines and vehicles, as well as all makes of diesel engines, including Cummins, Duramax, and Power Stroke, and many more.

While we offer the complete range of services, here are a few of the repairs that our customers often need:

Common Rail Injection Repairs:

Common Rail Injection systems have helped to transform the diesel engine from the slow, smokey, powerful train-like diesel engine of the past into sporty, fuel-efficient, and clean running engines. Its unique division of injections allows the Common Rail Injection system to precisely deliver the correct amount of fuel from its separated pressurizing system. At Automotive Diagnostic Specialties we have the diagnostic tools and the expertise to provide customers with Common Rail Injection system repair and diagnostics.

Diesel Injector Replacement and Injection Repair:

One of the key differences between a diesel engine and a gasoline one is the injection system. While most gasoline systems inject fuel outside of the cylinder, diesel injectors actually inject fuel directly into the cylinder. This poses a different set of challenges when it comes to diesel injector replacements and injection system repairs as they must be able to withstand the heat and pressure inside of the cylinder while still dispersing the diesel fuel in a fine, even mist.

Diesel Truck Injection Pump Repair:

Traditionally the diesel injection pump is run from the crankshaft by gears or a belt and delivers fuel based on the RPMs of the engine. Newer systems, including the Common Rail Injection system, utilize external pumps which are regulated by Electronic Diesel Control modules. Regardless of the specific set up of your injection system, we can help you with diesel injection pump repairs here at ADS Auto Repair.

Diesel Engine Replacement & Overhaul:

From time to time the unfortunate reality is that your diesel engine can be beyond repairing. When that is the case, ADS Auto Repair can help with finding the correct diesel engine replacement for your vehicle, replacing your old engine with a new or re-manufactured engine getting you back on the road quickly. Furthermore, we can also overhaul your diesel engine where we clean it, service it, repair it and re-assemble it to prolong the overall life of your current diesel engine without replacing it with a brand new one.

Diesel Electrical Repair and Diagnostics:

Diesel engines, like all engines, involve complex and technical electrical systems. Our service bays are equipped with electrical diagnostic tools to track down any hard-to-find electrical problems with your diesel vehicle and get your engine running smooth and efficiently.

Diesel Transmission and Clutch:

We offer diesel transmission replacements and services. It’s recommended that you have your transmission serviced regularly to prevent more costly repairs such as transmission rebuilds and clutch replacements in the future. At ADS Auto Repair we offer transmission repairs, replacements, and servicing.

Diesel Drivability and Performance:

Do you have concerns about the drive-ability or performance of your vehicle? We offer complete diesel drive-ability diagnostics and diesel performance upgrades. Automotive Diagnostic Specialties is a AAA approved auto repair facility and recipient of AAA‘s “Top Shop” award.

We are so confident in the diesel repairs that we perform that we offer a 3 year/36,000 mile parts and labor warranty on most repairs.  We back up our repairs to offer you peace of mind in knowing you’ve got a reliable workhorse ready for any and every project!

About Our Bosch Diesel Certification

Bosch Diesel Centers, like Automotive Diagnostic Specialties, specialize in automotive diagnosis and repair of diesel in-line pumps, rebuilding of common rail injectors and general diesel repair services.

Our Bosch Auto Service Center in Chandler is highly knowledgeable in the newest diesel technology. We are authorized by Bosch to offer aftermarket service and warranty of spare parts, injectors and diesel pumps.

Our Bosch Diesel Shop offers, at a minimum, the following diesel services:

On-Vehicle Repair Services

  • Failure & Diagnostic solutions for all kinds of diesel injection systems
  • Diesel vehicle maintenance & service according to the original manufacturer’s specs

Component Repair Services

  • Diagnosis, Service and Repair of:
    • In-line diesel pumps (P3, A, P8500 M, MW, P7100, VA and VE style pumps)
    • Traditional Injectors (Non-Common Rail & Non-Unit Injector)
    • Governors (RSV, RS, RQV, RQ,RE)
  • Testing, rebuilding & warranty analysis of Bosch common rail injectors
  • Technical Warranty Assistance on Bosch products
  • Injector & Pump exchange program
    • New
    • Injectors & Pumps remanufactured by Bosch
    • Bosch authorized rebuilt injectors and pumps

Common Diesel Warning Signs That Require Repair

Just like any car or truck that has problems, diesel vehicles have problems too. If you are noticing any of the following warning signs, it’s probably time for repair. Warning signs of diesel engine problems that require repair include:

  • Poor engine performance
  • Engine oil found inside cooling system
  • Engine overheats
  • White, black or blue smoke coming from exhaust system
  • Engine runs poor when cold
  • Engine oil
  • Engine oil is 15°F higher than coolant temperatures
  • Leaking coolant or excessive coolant loss
  • Engine hard starts
  • Los of performance
  • Using more fuel than usual
  • Long cranking times
  • Check engine light is on

Learn more about diesel problems that require repair 

Most Common Diesel Repairs

Most of the warning signs above can be repaired. The most common diesel repair services performed by diesel mechanics are:

  • Diesel Air intake system repair and replacing parts
  • Diesel Charging system repair
  • Diesel Glow plug repair and replacement
  • Diesel Turbo repair, rebuilding, replacement
  • Diesel High pressure pump repair, rebuilding, replacement
  • Diesel Hydro boost system repair, replacement
  • Diesel EGR system repair

Reviews & Testimonials

ADS Google Plus Reviews
ADS 5 Star Yelp Reviews
ADS Auto Repair Facebook Reviews
ADS Auto Repair Angies List Reviews

Excellent service, honest staff, and technicians were able to quickly figure out my truck’s issues. Highly recommended for complex repairs. The hourly rate is $124, a bit high compared to some shops, but it will save you money in the long run finding and fixing the actual issue. The service writer Tim did not try to sell me anything I didn’t need, and he was knowledgeable about the repair when I asked what needed to get done.
Jonathan ETruck Repair Chandler, Arizona

Schedule Diesel Repair or Diesel Engine Repair In The Phoenix Valley

Contact us today at (480) 961-8704 for Diesel Engine Repair Service estimates or with any questions, including about our Vehicle Repair Warranty. For Diesel Truck Repair, we are within a close proximity to the following Chandler zip codes: 85224, 85225, 85226, 85244, 85246, 85248, 85249, 85286. Our diesel engine repair service area includes: Phoenix, Gilbert, Chandler, Tempe, Mesa, Glendale, Peoria, Surprise, Arizona and more.

Diesel Engine Repair
User Rating
5 based on 2 votes
Service Type
Diesel Engine Repair
Provider Name
6835 W. Chandler Blvd.,Chandler,Arizona-85226,
Telephone No.480-961-8704
Phoenix, Chandler, Mesa, Tempe
If you are searching for “Diesel Repair” or “Diesel Engine Repair Service” Automotive Diagnositic Specialties can help! We offer diesel Let one of our Master ASE Certified Diesel Repair Technicians help you properly maintain and/or repair your diesel powered vehicle.