Our Services
Cooling, Radiator & A/C Repair
Overheating or no A/C? Heavy-duty cooling, radiator, and A/C repair across the I-80/I-55 corridor. Certified techs, mobile or in-shop, honest pricing.
Heat is an engine’s enemy, and a cooling problem rarely stays small. A weeping hose or a slow radiator leak turns into an overheat, and an overheat turns into a blown head gasket or a cracked block — the kind of repair that costs ten times what the original fix would have. J&A Fleet repairs heavy-duty cooling systems and truck A/C, finds why it’s running hot, and stops the small problem before it becomes the expensive one.
WHAT WE REPAIR
- Radiators — leaks, clogs, and replacement
- Water pumps and thermostats
- Hoses, clamps, and coolant leaks
- Fans, fan clutches, and shrouds
- Overheating diagnosis under load
- Coolant flushes and system service
- Truck A/C — compressors, condensers, recharge, and no-cool diagnosis
- Cab heat and defrost issues
OVERHEATING — FIND THE WHY, NOT JUST THE SYMPTOM
Topping off coolant and sending you down the road isn’t a repair — it’s a delay. We pressure-test the system, find where it’s losing coolant or where it’s not moving heat, and fix that. Overheating under load especially needs real diagnosis: it can be a fan clutch, a partially blocked radiator, a weak pump, or a thermostat, and they don’t all feel the same. We find which one it is so you’re not back on the shoulder next week.
A/C THAT ACTUALLY WORKS
A hot cab on a long haul is more than uncomfortable — it wears the driver down. We diagnose and repair truck A/C the right way: find the leak or the failed component, fix it, and recharge to spec, instead of just blowing in refrigerant that leaks right back out.
DONE RIGHT THE FIRST TIME
Quality parts, proper pressure-testing, and verification the system holds and cools before the truck leaves. No guesswork, no comebacks.
PRICING YOU CAN SEE COMING
You’ll hear our hourly rate, our minimum, and any surcharges up front. Mobile road service is billed port to port, and the price only changes if the job changes.
MOBILE OR IN THE SHOP
A lot of cooling and A/C work is done on site — we’ll come to you. For radiator replacements and bigger jobs, we don’t run recovery vehicles, but we work with a network of recovery partners and get the best rates to bring your truck in.
WHERE WE WORK
Cooling, radiator, and A/C repair across Morris, Aurora, Joliet, New Lenox, Rockdale, Gardner, and the surrounding I-80 / I-55 corridor.
WHY Choose J&A Fleet
Honest diagnosis, certified techs, fair upfront pricing, and a family-owned local crew. We’d rather fix the small leak today than sell you the big repair it would’ve become — that’s the whole point of how John built this shop.
A FEW QUICK ANSWERS
My truck runs hot only under load — what is that?
Usually a fan clutch, a flow restriction, or a weak pump. We diagnose under load to find which.
Can you recharge my A/C on site?
Often yes — but if it’s low, there’s a leak, and we’ll find it so it doesn’t just quit again.
Running hot or losing your A/C?
Call J&A Fleet at (815) 518-5252 before a small leak becomes a big repair.
What Customers Say
“Excellent service and very honest people. I came in with a driveshaft/carrier bearing issue causing vibration on my truck, and they stayed after hours to help me. Small family-owned shop with great courtesy, professionalism, and customer service. They explained the issue, showed me the work, and made sure everything was done properly. I’m very satisfied with the repair and thankful for their help. Highly recommend this shop for driveline and truck repairs.”
— ermias kassahun “These guys were awesome, needed a quick hose fix, I was in and out in 10 min and they were super nice people. Would highly recommend to anyone!”
— Braden Munoz “John with J&A Fleet was awakened in the middle of the night. I waited less than 15 minutes for his arrival. He had me up and running within seconds. Showed me some unique tricks for future issues. You cannot go wrong with folks like John. Thank you so very much for making a difficult time seem so easy. Will not forget.”
— John Carroll
Ready For Fleet Service?
Call now to schedule mobile service or build a maintenance program that works for your fleet.