Having problems with your Saturn SL ?
Noise inside my intake manifold on 1999 sl2 saturn
\015 When car is started and idling there is noise coming from inside the intake manifold\015
If it sounds like a rattle thats your p.c.v. valve did you have a tune up latley probaly changed then . if so thats ok.
Repair Help & Product Troubleshooting for Saturn SL
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