I had similar hissing air leak that also caused the air alarm to sound and no increase in air on the secondary air guage. The air conditioning stopped blowing cold air as well.
The problem was the ABS brake valve on the passenger side of engine near the inside of the frame.
Whistling / squealing noise 9400i
Discussion in 'International Forum' started by DHF, Jun 3, 2011.
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I second HeavyD. Usually broken exhaust manifold bolt/gasket. #5/#6 are popular for this problem. Good luck and check all of the above carefully.
Heavyd Thanks this. -
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When I stop my brakes makes a little squealing noise when I stop when traffic on the highway. Is it my oil or my brakes are wearing out? I mean they still work perfectly but the squealing I don't think a lot of people like it on the road. I check it again when I stop at Love's truck stop today. Should be there probably at 3:56 PM or early or late depends on traffic.
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How long can you drive like that?
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