Truck HVAC System Repair Services in Fontana, CA

Proudly Serving the Counties of San Bernardino, Riverside & Los Angeles Since 2004

If you're a trucker, you know how much it means to have a working HVAC system. Not only does it keep you comfortable on the job, but it also ensures your windshield stays clear and your engine gets the air it needs. At EIP Diesel Repair in Fontana, California, we’re pros at fixing up HVAC systems.

Diesel mechanic performing A/C repairs on semi truck in California

Common Issues with HVAC Systems

Although HVAC systems are robust, they still suffer from numerous issues, including:

  • Clogged Evaporator Coils: dirt and debris can accumulate in the evaporator coils, reducing airflow and the system's ability to cool the cabin.
  • Leaking Refrigerant: a refrigerant leak can cause warm air to blow out of the vents, hissing noises, and visible leaks.
  • Broken Blend Door Linkage: a broken blend door linkage can cause uncomfortable temperatures in the cabin by getting stuck in either the hot or cold position.
  • Clogged Cabin Air Filters: over time, cabin air filters can become clogged, reducing airflow and causing foul odors.
  • Malfunctioning Evaporator Core: a malfunctioning evaporator core can lead to reduced airflow, visible leaks, and warm air blowing out of the vents.

How To Tell If Your HVAC System Needs Repairs

If you notice any of the following signs, it's time to bring your truck in for HVAC system repairs:

  • Warm air blowing from the vents
  • Hissing noises or visible leaks
  • Uncomfortable temperatures in the cabin
  • Reduced airflow
  • Foul odors

Why You Need Functioning A/C and Heating Systems

As a medium- or heavy-duty commercial driver, you'll be driving in all types of weather and climates. Your HVAC system should be able to handle anything nature throws at it, from sweltering summers to freezing winters. At EIP Diesel Repair, we understand the importance of having functioning A/C and heating systems for your comfort and safety on the road. 

Contact Us

Whatever the problem, EIP Diesel Repair has got you covered. Contact us today for a comprehensive inspection of your HVAC system.


We Offer Top-Rated Heavy-Duty Diesel Mechanic Services

EIP Diesel offers a wide-range of diesel mechanic services. Our full-service heavy-duty repair shop provides repair and maintenance for all types of diesel vehicles, from semi truck trailers & buses, to RV's & heavy equipment. We have all the tools & tech needed to perform top-rated repairs on all makes & models. We are centrally located in Fontana, CA, and are proud to keep the surrounding areas of San Bernardino, Riverside, Anaheim, Rancho Cucamonga, & more moving safely!

Customers Reviews

Really good Heavy duty diesel mechanics, its my go to place to service my truck. Honest and reliable.
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A+ Mechanics. I've been in the trucking industry for 30 years. The entire team at EIP Diesel repair have proved to be honest, knowledgeable and on schedule.  They have overhauled 3 different trucks for me, and the performance is on point.
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Juan Roberto Avilo Nuno

Great place anything from a oil change to a overhaul they can do it all 100% recommended.
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Ismael Becerra


Contact Us

Contact us today to schedule service or with any questions.

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Find Us
16144 Boyle Ave, Fontana, CA 92337
Truck mechanics at EIP Diesel Repair