Lack of Boost or Over Boost Condition Due to APC Solenoid Failure on Saab 900

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

Problem overview

The APC Solenoid, also known as the boost pressure control solenoid, can fail creating an over-boost condition or a lack of boost from the turbocharger. This may be felt in an abrupt loss of acceleration under heavy load (climbing a hill, or quick acceleration).

6 people reported this problem
1 comment
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Saab 900 vehicles with this problem

Average mileage: 165,000 miles
(165,000 - 165,000)

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