Car acts like it wants to stall after ac is turned on?

If your car feels like it’s about to stall when you turn the AC on, it usually means the engine is struggling to handle the extra load.

Common reasons:

Dirty throttle body or idle air control valve

Weak AC compressor putting too much strain on the engine

Vacuum leak

Low engine idle speed

Someone I know thought their car was “just old” because it shook every time the AC came on. A quick check at Bergman’s Auto Repair showed the throttle body was clogged. A simple cleaning fixed the issue—no big repairs, no drama.