Engine Whistle
Thread Starter
Joined: Jan 2008
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Engine Whistle
I have over 117,000 miles on my 02 1500. I maintain it religiously and never had any major repairs. It runs almost like day one, but now I am noticing a bit of a hissing or whistling noise. We looked at it last night and it doesn't seem to be the belt.It's pretty faint or non-existent when idling, but you hear it follow the early acceleration and there is a bit of a remaining slight hissing or whistling noisewhen you turn the ignition off. It almost seems like the fan or even the alternator.
Since I have not had many problems with the truck in the past, has anyone had something similar. I do believe it could be the beginning of the alternator taking a crap, but any other suggestions or insight?
Since I have not had many problems with the truck in the past, has anyone had something similar. I do believe it could be the beginning of the alternator taking a crap, but any other suggestions or insight?
Champion
Joined: Aug 2007
Posts: 4,702
Likes: 2
From: N. Florida
RE: Engine Whistle
ORIGINAL: tjames2978
I have over 117,000 miles on my 02 1500. I maintain it religiously and never had any major repairs. It runs almost like day one, but now I am noticing a bit of a hissing or whistling noise. We looked at it last night and it doesn't seem to be the belt.It's pretty faint or non-existent when idling, but you hear it follow the early acceleration and there is a bit of a remaining slight hissing or whistling noisewhen you turn the ignition off. It almost seems like the fan or even the alternator.
Since I have not had many problems with the truck in the past, has anyone had something similar. I do believe it could be the beginning of the alternator taking a crap, but any other suggestions or insight?
I have over 117,000 miles on my 02 1500. I maintain it religiously and never had any major repairs. It runs almost like day one, but now I am noticing a bit of a hissing or whistling noise. We looked at it last night and it doesn't seem to be the belt.It's pretty faint or non-existent when idling, but you hear it follow the early acceleration and there is a bit of a remaining slight hissing or whistling noisewhen you turn the ignition off. It almost seems like the fan or even the alternator.
Since I have not had many problems with the truck in the past, has anyone had something similar. I do believe it could be the beginning of the alternator taking a crap, but any other suggestions or insight?
Amateur
Joined: Aug 2006
Posts: 37
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From:
RE: Engine Whistle
Could be anything but since you hear it when you shut the truck off, try stepping on your brake pedal about 1 minute after the engine is off. If it is a hard pedal on the first push, check the booster for a leak or the vacuum line to it. Sometimes the rubber grommet develops cracks that allow it to leak. An unsafe way but quick way is to let the truck idle and spray WD-40 along your vacuum lines on the top of the engine and such. There should be a change in idle if you come acrossa cracked vacuum line. I use starting fluid to check but that is really risky and I'm stupid sometimes.