10/15/2026
Cold hands don’t fix trucks.
On cold Omaha commutes and job sites, diesel trucks can take longer to reach operating temperature. A weak heater, lukewarm air, slow defroster, or foggy windshield isn’t just uncomfortable. It can become a visibility and safety issue.
The cause may be low coolant, poor coolant flow, air in the cooling system, a stuck-open thermostat, a restricted or leaking heater core, failed blend-door actuator, clogged cabin air filter, blower motor or resistor fault, HVAC control issue, refrigerant loss, compressor or condenser problem, or a leak.
Proper HVAC service means testing the whole system, not just topping off refrigerant.
HMS Auto and Fleet handles heating and A/C troubleshooting, defrost and ventilation performance, coolant and thermostat service, heater-core repairs, blower and blend-door repairs, A/C recharge and leak diagnosis, scheduled maintenance, complete gas and diesel repair, and fleet service.
With ASE Master certified technicians, professional diagnostic equipment, up-to-date software and programming capability, and a 19,000+ sq. ft. Omaha facility, we’re equipped to solve the tough issues other shops can’t.
Don’t wait for the first hard freeze. Call HMS Auto and Fleet or visit https://hmsautoandfleet.com/ to schedule heating and A/C service.