Air whistle noise
28 Ft Forest River Class C had a low speed whistle noise that was buggin' me. So, I replaced the entry door weather stripping on the coach. Hmm, no help. Then I cleaned & sprayed the weather-stripping on the front doors. Hmm no help. Turned up the radio volume. DW complained. Hmm, no help at all. Just began staring at the coach out of despair, nothing found. Next day I washed the coach & noticed the adjusting holes in the support arms attached to the outside awning. Hmm, what the hell, I covered the holes with electrical tape.
OMG, whistle gone.
Who woulda' thunk it? Damn I felt smart! Oh well, next issue!