Truck Coolant System Repair Services in Fontana, CA

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

Is your heavy-duty diesel truck experiencing engine overheating? Although there can be several issues causing this, all roads generally lead to one: coolant system damage. At EIP Diesel Repair, we’re adamant about maintaining your coolant system at 100% to help you avoid unnecessary repairs.

Diesel mechanic performing coolant system repairs on semi truck in Fontana, CA

Common Truck Coolant System Damages

Common damages and problems with coolant systems for commercial and heavy-duty diesel trucks include leaks, clogs, corrosion, coolant contamination, fan clutch failure, thermostat failure, and water pump failure. At EIP Diesel Repair in Fontana, California, we offer comprehensive coolant system repairs for fleets of all kinds and sizes.

Broken Fan Clutch

The fan clutch is responsible for activating and deactivating the cooling fan. If it fails, your engine is at a high risk of overheating. At EIP Diesel Repair, we can repair or replace your fan clutch to keep your engine running at a safe temperature.

Failing Water Pump

The water pump circulates coolant through your engine block and radiator. If it fails due to a leak or a mechanical issue, your coolant will not disperse enough heat, causing your engine to overheat. Our experienced technicians can diagnose, repair or replace your water pump.

Plugged Radiator

A plugged radiator can restrict coolant flow and fail to disperse enough heat to keep your engine running at an adequate temperature. If you haven’t had your coolant flushed in a while, the old fluid can break down and leave debris behind, causing plugs. At EIP Diesel Repair, we can diagnose and repair or replace your radiator to keep your engine running cool.

Other Damages

Other symptoms to watch for include a failing thermostat, burnt coolant, and a loose or broken fan belt. Our team of certified technicians has the expertise to diagnose and repair any issue with your diesel truck's coolant system.

Contact Us

Don't let coolant system damages cause your engine to overheat. Contact EIP Diesel Repair in Fontana, California, for all of your coolant system repair needs. We offer competitive pricing and quick turnaround times to keep your fleet in check.


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


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Contact us today to schedule service or with any questions.

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