Mechanics

WHY IS MY VAN WHISTLING AFTER LONG COMMUTES?

2005 Dodge Caravan • 150,000 miles

The whistling starts after long commutes, 1.5 hours or so. It gets louder the longer you drive. It sounds like it is coming from the rear of the van. No alerts on Service Engine Soon and no codes.
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Ajhg4011
August 26, 2011.



Van have rear AC? And is it in operation?

Docfixit
Aug 26, 2011.