Diesel Repair

Diesel Diagnostic, Service & Repair

Today’s diesel engines are much more intricate than they used to be, and thus require expert knowledge, special diagnostic equipment, and state-of-the-art facilities to handle maintenance and repair service properly. Automotive Diagnostic Specialties (ADS Auto Repair) has all three of these, and can provide you the service you need to get you back on the road quickly and safely. 

We specialize in diesel repair services for Dodge Cummins, Mercedes Benz, Deutz, Ford Power Stroke, MTU, Detroit Diesel, International, and GMC/Chevrolet Duramax diesel.  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. 

ADS Auto Repair is a full-service diesel truck repair and diesel maintenance shop located in Chandler, AZ and can service and repair large and small diesel engines and vehicles, as well as all makes of diesel engines.

While we offer a 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 ADS 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. ADS is able to repair or replace your faulty diesel injector.

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 setup of your injection system, ADS Auto Repair can help you with diesel injection pump repairs.

Diesel engine replacement and overhaul – In the unfortunate instance when your diesel engine may be beyond repair, ADS Auto Repair can help with finding the correct diesel engine replacement for your vehicle, replacing your old engine with a new or remanufactured engine to get you back on the road quickly. Furthermore, we can also overhaul your diesel engine, in which 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 smoothly and efficiently.

Diesel transmission repair, replacement, and clutch — We offer diesel transmission repair, transmission replacements, and transmission maintenance services. We recommend that you have your transmission serviced regularly to prevent more costly repairs such as transmission rebuilds and clutch replacements in the future. ADS Auto Repair offers transmission repairs, replacements, and servicing.

Diesel drivability and performance — Do you have concerns about the drivability or performance of your vehicle? We offer complete diesel drivability diagnostics and diesel performance upgrades. ADS is an AAA-approved auto repair facility and seven-time recipient of AAA‘s “Top Shop” award.

Diesel oil change — We are so confident in the diesel repairs that we perform that we offer a three- 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.

Bosch Diesel Certification

ADS Auto Repair is a Bosch Diesel Center, specializing 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, AZ has the latest technology and ASE-certified technicians who are 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 and diagnostic solutions for all kinds of diesel injection systems
  • Diesel vehicle maintenance and service according to the original manufacturer’s specs

Component Repair Services

  • Diagnosis, Service and Repair of:

o In-line diesel pumps (P3, A, P8500 M, MW, P7100, VA and VE style pumps)

o Traditional Injectors (Non-Common Rail & Non-Unit Injector)

o Governors (RSV, RS, RQV, RQ,RE)

  • Testing, rebuilding and warranty analysis of Bosch common rail injectors
  • Technical warranty assistance on Bosch products
  • Injector and pump exchange program

o New injectors and pumps remanufactured by Bosch

o 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
  • Loss of performance
  • Using more fuel than usual
  • Long cranking times
  • Check engine light is on

Learn more about diesel problems that require repair in our blog article.

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

How Much Does Diesel Truck Maintenance Cost?

On average, diesel truck maintenance can cost you anywhere from $70 to $500 depending on the type of maintenance you need:

  • Diesel oil change cost: $70 to $200
  • Diesel fuel filter cost: $100
  • BG diesel injection service cost: $250 to $450
  • Diesel engine replacement cost: $5500 to $11000
  • Rebuilt diesel engine replacement cost: $3000 to $4500
  • BG diesel induction service cost: $500

In addition to offering automotive expertise, customer service is of the utmost importance to us. We would love the opportunity to earn your business. Call us today at (480) 961-8704 to get your diesel motor in tip-top shape and running reliably in the field. We’re happy to provide you with a diesel engine service estimate or answer any questions about our vehicle repair warranty.