Kia Forte engine shutdown issue when AC is activated, suspected compressor failure on Kia Forte

Submitted by TH75 · Jun 23, 2025
Published by RepairPal

Problem overview

Some Kia Forte owners report experiencing engine shutdown issues when activating the AC, which may be linked to a faulty AC compressor. These owners note that compressor failure can cause the engine to shut down upon turning on the AC. Additionally, unusual noises such as a "thunk" or "clunk" after activating the AC may indicate compressor problems. Many owners find that a bad compressor typically requires replacement rather than repair. It is crucial for owners to have the AC compressor professionally inspected to diagnose any issues causing the engine shutdown. In some cases, the problem may also be related to the clutch that activates the compressor, affecting the overall functionality of the AC system. To ensure proper AC operation and prevent further engine shutdowns, it is advisable for owners to have the compressor checked and potentially replaced.

13 people reported this problem
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Kia Forte vehicles with this problem

Average mileage: 64,400 miles
(42,000 - 109,000)

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