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Pontiac Firebird Problems

Intake manifold or PCV valve hose may develop engine vacuum leak on Pontiac Firebird

Problem Description and Possible Solution

The intake manifold or PCV valve hose may develop an engine vacuum leak causing a rougher than normal idle am may result in illumination of the check engine (SES) light.
(3 people reported this problem)

Pontiac Firebird Vehicles With This Problem

RepairPal Verified
Average mileage: (–)
Engine affected: 3.1L V6
3 model years affected: 1990, 1991, 1992
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