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Diesel Engine Repair in Apex

Diesel Services at GMP Automotive Inc.

At GMP Automotive Inc., we proudly cater to diesel trucks and jeeps from manufacturers such as GM, Chevy, Dodge, Ford, and more. Our specialization extends to the maintenance of diesel engines, with a focus on Duramax, Power Stroke, and Cummins.


Cooling and Lubrication Systems
To prevent costly diesel engine repairs in the future, it's essential to maintain your diesel engine's cooling system effectively. Ensuring efficient cooling and lubrication in high-performance Duramax, Power Stroke, and Cummins diesel engines is the key to extending the lifespan of vital components such as glow plugs, injectors, and turbos.

Glow Plug Replacement
In all weather conditions and road scenarios, your truck or jeep relies on its glow plug to generate the necessary heat and electrical resistance for engine ignition. We offer the ideal glow plug options for Duramax, Power Stroke, and Cummins diesel engines, including DieselRX, NGK, and more!

Injectors and Turbos
Since 2013, GMP Automotive Inc. has been recognized as Apex's premier diesel repair facility. We specialize in rejuvenating worn-out, high-performance injectors and turbos within GM, Chevy, Dodge, and Ford trucks. These components are prone to generating unwanted noise or expelling excessive exhaust. A failing injector can lead to poor fuel economy, glow plug complications, and reduced performance, impacting your truck or jeep both on and off the road.

Jeep and Truck Diesel Exhaust Repair
For any diesel truck or jeep, the exhaust system plays a crucial role in directing exhaust gasses away from the internal combustion engine and dispersing them into the atmosphere. This system can be customized to enhance engine performance, modify muffler sound, or reduce emissions. Regular maintenance is crucial to optimizing your diesel GM, Chevy, Dodge, or Ford truck or Jeep's exhaust system.


Popular Brands We Repair and Service

  • Dodge Diesel
  • Ford Engines
  • DuraMax
  • Mercedes
  • Isuzu
  • Cummins
  • Power Stroke
  • GM Diesel Light Duty
  • Chevy


Why Choose GMP Automotive Inc. for Your Diesel Maintenance?

Explore our reviews to understand why we're celebrated for delivering first-class, convenient diesel maintenance at competitive prices. Visit our repair shop and experience the exceptional handiwork of our professional diesel mechanics. Our consistent 5-star ratings show off our status as one of the top recommended diesel repair services in Apex.

Diesel Maintenance FAQs


What maintenance is required for a diesel engine?

Diesel engines operate at higher temperatures than gasoline engines, requiring frequent oil changes and quality checks to maintain performance. Adding a liquid additive during the colder months and into the spring can also greatly benefit their operation.

How often should diesel injectors be serviced?

The recommended service interval for diesel fuel injectors is around 95,000 miles, but this can vary based on your vehicle's model, make, and your driving habits. Watch for signs such as rough idling or a drop in fuel efficiency as cues to perhaps service the injectors sooner than the mileage guideline suggests.

How long does a diesel engine last?

With proper maintenance, diesel engines can achieve 1 million to 1.5 million miles of service or about 30 years of reliable performance, significantly outpacing the lifespan of gasoline engines. Their durability is enhanced by their strong build and efficient combustion process.

To learn more about our diesel engine repair services, call us at 919-805-9455 or request a quote by clicking below:


Request Quote


reviewiconMy new go-to shop
Diesel Engine Repair, near Cary, NC
09/22/2025

Awesome service and highly skilled technicians! My 18 year old Ford diesel was experiencing issues and I sought out GMP to help me diagnose the power loss. Online forums had more than 12 things that could have been the cause, which worried me about a possible rabbit hole this could be on such an old truck. Dave B at GMP listened carefully to the concern, came up with a plan and dug in the resolve it. A little scary for me, because the entire cab of the truck had to come off to access the turbo, where the problem resided - but Dave set me at ease and showed professionalism and calm. Ultimately the work Dave did resolved the issue and hope to get another 5 or more years out of the truck! Dave also recommended a few other items, while the cab was off, that made great sense to get done at the same time. Thank you Dave and the entire GMP Automotive group for such great work! You have earned a long term customer that will be reaching out for my general and difficult maintenance in the future!



Discover More About Diesel Engine Repair At GMP Automotive Inc. in Apex

Miscellaneous Auto Services
Engine Repair Services

Contact Us Today!

Got questions? We've got answers! Drop us a line, give us a call, or even stop by. Our team is eager to help you with any auto repair needs you have. Let's get you back on the road safely and swiftly!

What Our Customers Are Saying

This garage is great! I snapped a hard brake line trying to get it off of my car, so needed to have a new one made. GMP took my old one, duplicated it, had it back to me the next day. With only a few tweaks it fit like a glove. Will be going here for work in the future!

, 11/24/2025

Huge shoutout to Travis who answered my call, arranged an appointment for my Corvette C8 rear brake pads change, and accommodated my time changes for 3 times. I had to reschedule because I was swamped for the last week. He sent me an estimate and it looked good and reasonable. Dropped it off today after lunch and it was done by the end of the day. Highly recommend, would definitely come back.

Brakes, near Apex, NC

, 11/05/2025

Awesome service and highly skilled technicians! My 18 year old Ford diesel was experiencing issues and I sought out GMP to help me diagnose the power loss. Online forums had more than 12 things that could have been the cause, which worried me about a possible rabbit hole this could be on such an old truck. Dave B at GMP listened carefully to the concern, came up with a plan and dug in the resolve it. A little scary for me, because the entire cab of the truck had to come off to access the turbo, where the problem resided - but Dave set me at ease and showed professionalism and calm. Ultimately the work Dave did resolved the issue and hope to get another 5 or more years out of the truck! Dave also recommended a few other items, while the cab was off, that made great sense to get done at the same time. Thank you Dave and the entire GMP Automotive group for such great work! You have earned a long term customer that will be reaching out for my general and difficult maintenance in the future!

Diesel Engine Repair, near Cary, NC

, 09/22/2025

Solid place, honest and detailed.

Car & Truck Care, near Holly Springs, NC

, 07/26/2025

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Partners

  • ACDelco
  • ASE (Automotive Service Excellence)
  • OEM Parts
  • duramax


  • Ford Motorcraft