Forum Discussion
garyemunson
Aug 04, 2020Explorer II
Probably the air admittance valve. Just replace with cheap Home Depot one. The extreme heat and cold in an RV during storage ruins them, cheap or expensive. Tear your old one apart and you will see why. In a house they live an easier life.
About Fifth Wheel Group
19,031 PostsLatest Activity: Dec 16, 2025