What is this cap? - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #1 of 2 (permalink) Old 03-17-2019, 12:09 PM Thread Starter
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Posts: 497
What is this cap?

This white/yellow cap behind the manifold is connected to a tube which goes behind the firewall. The cap/tube is loose and came off the clip.

What is this cap/tube?
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post #2 of 2 (permalink) Old 03-17-2019, 12:11 PM
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Transmission vent/overflow tube.

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