Cold on the highway, warm at the light
One of the most useful things you can notice about a struggling A/C system is when it struggles. A system that blows cold at highway speed and goes lukewarm while you sit at a traffic light is telling you something specific.
An air conditioner has to get rid of the heat it pulls out of the cabin. It does that at the condenser, the radiator-like part at the front of the vehicle. At speed, air rushes through it and the job is easy. Stopped, the only air moving through it is whatever the cooling fan pulls.
A system that only fails when the vehicle is stationary is often a system with an airflow problem at the front: a fan that is not running or not running fast enough, or a condenser blocked by debris. A system that is weak at every speed points more toward the refrigerant charge or the compressor.
That one observation, made by the driver for free, narrows the diagnosis before anyone opens the hood.
How to describe it when you book
- Does it cool well on the highway and poorly in town, or poorly everywhere?
- Did it fade gradually over weeks, or stop all at once?
- Does it cool on one side of the cabin and not the other?
- Is there a new noise when the A/C is switched on?
For a van that spends its day making short stops on a delivery route, the stationary case is the one that matters, because it is most of the day.
What the check covers
Pressures, the compressor, the condenser and fan, and leaks. The national A/C service page covers what a recharge does and why a system that keeps needing one has a leak. A temperature gauge that also climbs in traffic is a cooling system question, and routine checks fit into scheduled maintenance, both here.
About this store
The Owensboro store runs sixteen services and is managed by Paul Wilson.
See the national A/C service page for all 33 locations.