If your car’s AC suddenly stops blowing cold air, your first thought might be:
“I need a new compressor.”
But hold on — that’s usually the most expensive fix, and often not the actual problem.
Before you spend hundreds (or even thousands), here are the most common causes of AC failure — and how you can fix them for a fraction of the cost.
Check the Blower Motor First (No Airflow at All)
If your AC isn’t blowing air at any speed, the issue is often not the compressor.
Common culprits:
- Blower motor
- Blower motor resistor
- HVAC control module
These parts control the airflow, not the cooling.
Good news:
They’re usually:
- inexpensive
- easy to replace
- available used in great condition
AC Blows Warm Air? Don’t Assume the AC Compressor
If air is blowing but not cold:
It could be:
low refrigerant
AC pressure sensor
blend door actuator
control module
A failed compressor is possible, but it’s not always the cause.
Why OE (Original Equipment) Parts Beat Aftermarket
When it comes to AC systems, using OE (Original Equipment) parts makes a big difference.
Aftermarket parts can:
fit poorly
fail early
cause electrical issues
not match factory specs
OE parts are built specifically for your vehicle:
correct fit
factory performance
better long-term reliability
Save Hundreds with Quality Used Parts
At Highway Auto Parts, we specialize in:
- OE-quality used parts
- fully inspected components
- parts pulled from running vehicles
Instead of paying:
- $300–$800 for a new compressor
You can often fix the issue with:
- a $40–$150 component
Access to Thousands of Parts — Fast
We’re not just one yard.
We’re connected to a large salvage network, which means:
access to thousands of vehicles
faster part availability
better chances of finding exactly what you need
Backed by our Warranty for Peace of Mind
