Whining noise

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Oct 24, 2006 | 06:08 AM

DueCat

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Whining noise

I have a 1997 Expedition E/B {5.4} 4x4 and I noticed a whining noise coming from the engine. Sounds like it's right around the fan blade or very close, when I turn off the engine it sounds like it's winding down to a stop, but I can't see any thing moving. Any ideas would be greatly appreciated. I know how to check fluids, that's about the extent of my knowledge.
Thanks

Oct 24, 2006 | 09:08 AM

89LX306

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From: Houston

If it sounds like it is near the fan, you could spin the fan by hand (with the engine off) and see if you hear anything rubbing. A quick visual inspection of that area should make rubbing very obvious.

Does the "winding down" stop when the pulleys stop spinning? Could give you a direction to look.

Oct 24, 2006 | 09:24 AM

DueCat

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The noise continues after I shut off the engine, under the cover that sayes Triton 5.4 L for a few min., then it stops. I checked the fan it's fine. As you can tell, I know very little about engines. It's the fan cluch going bad.

Last edited by DueCat; Oct 24, 2006 at 10:18 AM. Reason: New Info

Oct 24, 2006 | 07:09 PM

FTE Herman

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Welcom DueCat, you don't perhaps have a Load Leveling Suspension (LLS) do you? It could be the compressor your hear running.

Oct 24, 2006 | 07:18 PM

DueCat

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I took it to the shop today and they said, what I was hearing was normal, but the fan clutch may be going out. What would be a good price to have that repaired? Any guesses?

Oct 24, 2006 | 07:19 PM

DueCat

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How would I tell if I had a {LLS}?

Oct 25, 2006 | 10:16 PM

FTE Herman

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^Air bags in the rear springs. A suspension switch in the passenger kick panel. A buzzing sound from time to time.

If they told you it was normal did they tell you what was making the noise? Perhaps the A/C system equalizing pressure? The fan doesn't spin for more than a second after you turn the motor off.