A/C Service & Repair
Light- & Medium-Duty
Northern Colorado summers turn a cab into an oven fast. Our factory-trained techs diagnose and fix A/C systems on light- and medium-duty trucks — refrigerant leaks, compressor failure, clogged cabin filters — so your drivers stay focused, not sweating.
Quick Answer
Weak or warm airflow usually traces to a clogged cabin air filter, a refrigerant leak, or a failing compressor/condenser. Truck City Service diagnoses the actual cause — not just a recharge — and repairs light- and medium-duty A/C systems with OEM parts in Greeley, CO.
Why A/C Problems Cost More the Longer You Wait

A/C trouble rarely stays small. A slow refrigerant leak today is a seized compressor next month — and a compressor failure can send metal debris through the whole system.
A recharge without a diagnosis is a 30-day fix, not a repair.
“More trucks come in with a system that’s been ‘recharged’ twice already than come in fresh. If nobody found the leak, it’s back in a month — and now the compressor’s worn from running low.”
— From our service bay, Truck City Service
Common A/C Problems We Diagnose

Clogged Cabin Air Filter
Dust, pollen, and mold spores build up over time and choke output. Usually a quick, inexpensive fix.
Refrigerant Leak
Refrigerant absorbs and sheds heat as it cycles. A leak means less refrigerant and a cabin that won’t cool. We trace the source, repair it, and recharge to spec.
Compressor or Condenser Trouble
The compressor moves refrigerant; the condenser sheds heat from it. A clogged condenser can often be cleaned — a damaged compressor typically needs replacement.
Signs Your A/C Needs Attention
- Warm air even at max setting
- Weak airflow from the vents
- Musty odor when the A/C runs
- Clicking or grinding when the compressor engages
- Visible refrigerant residue near hoses or fittings
- A/C cycling on and off rapidly
Real 5-Star Reviews
“Great experience from start to finish! The team did an excellent job on our truck, communicated clearly, and got us back on the road. Highly recommend!”
“I’ve been coming here for 25 years for all types of mechanical work, and the service has always been great. Very few issues in that time, and they were always taken care of immediately.”
“Matthew was great each and every time we spoke over the phone. He was friendly and the estimates were accurate and reasonable.”
Frequently Asked Questions
Why is my truck’s A/C blowing warm air?
How much refrigerant does my vehicle need?
Can a cabin air filter really affect A/C performance?
Do you service A/C on medium-duty trucks?
How long does an A/C diagnostic take?
What happens if I just get a recharge without a diagnosis?
Do you use OEM parts for A/C repairs?
How do I schedule A/C service?
Visit Truck City Service in Greeley, CO
Truck City Service
1415 1st Ave, Greeley, CO 80631
(970) 352-7200
Hours
Monday–Friday: 7:00 AM–6:00 PM
Saturday & Sunday: Closed
Serving
Keep The Fleet Running
Schedule A/C service today and stay ahead of Northern Colorado’s heat.

