Having problems with your 1997 Pontiac Grand Prix ?

Intake noise it is not a valve sound, it seems to come from intake maifold. when turning off motor and after is stops it will sound like a pressure release from intake

Posted / edited by AnonymousUser on : 19-02-2018

Answers :

Has it always done it? do you have an aftermarket cold air intake on it? if it has always done it...i think u r talking bout the vacuum relief of the intake manifold. no big deal
Repair Help & Product Troubleshooting for 1997 Pontiac Grand Prix

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