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Old 10-04-2020, 06:16 PM   #1
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Brand: Thor Motor Coach
State: Oregon
Posts: 54
THOR #20539
Whistle from Speakers

'Harmsy' here...a month into the ownership of our 2018 Citation Sprinter 24SJ, my grandson said that the whistle I am hearing is not the turbo but a noise thru the front cab speakers...only really heard at low engine and low road speed and it increases with engine rpm...which also now begs the question of "how do you turn the radio off?"...
...going off on our inaugural trip tomorrow to Central Oregon and again two weeks from now into Central Washington...then back for some more 60 day warranty work on the 20th October...
Any guidance you guys can offer would be great but I'll do as much reading myself while I am away, thanks in advance...Ian

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Old 10-04-2020, 09:24 PM   #2
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Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,883
THOR #6826
Quote:
Originally Posted by Harmsy View Post
'Harmsy' here...a month into the ownership of our 2018 Citation Sprinter 24SJ, my grandson said that the whistle I am hearing is not the turbo but a noise thru the front cab speakers...only really heard at low engine and low road speed and it increases with engine rpm...which also now begs the question of "how do you turn the radio off?"...

...going off on our inaugural trip tomorrow to Central Oregon and again two weeks from now into Central Washington...then back for some more 60 day warranty work on the 20th October...

Any guidance you guys can offer would be great but I'll do as much reading myself while I am away, thanks in advance...Ian


The outside speakers on my Winnebago did that. I believe it comes from the alternator and might be a stray grounding issue. Never got around to diagnosing or fixing it but it shouldn’t be too hard. Just google it.
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