Engine Vacuum Hose to MAP Sensor May Crack on Pontiac Grand Prix

Submitted by Vehicle Owner · May 29, 2025

Published by RepairPal

Problem overview

The engine vacuum hose to the MAP sensor may crack resulting in a vacuum leak causing the engine to run rough and/or stall.

3 people reported this problem

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Pontiac Grand Prix vehicles with this problem

2 model years affected

1991 Pontiac Grand Prix

1990 Pontiac Grand Prix

1991 Pontiac Grand Prix

1990 Pontiac Grand Prix

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Engine Vacuum Hose to MAP Sensor May Crack on Pontiac Grand Prix

Problem overview

Pontiac Grand Prix vehicles with this problem

Need a diagnosis? Trust our Pontiac experts.

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Ask our experts about your Pontiac.