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I have a 2004 Ford Ranger XLT 4.0L 6Cyl Auto.

Tiny
SOUTHPAW3612
  • MEMBER
  • 2004 FORD RANGER
  • 54,000 MILES
Truck makes a howling noise (sounds like its coming from the engine compartment) when I floor the accelerator. If it accelerate slowly it is nonexistent.
Monday, January 30th, 2012 AT 12:39 AM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
Are you sure the noise isn't coming from the clutch fan?
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Monday, January 30th, 2012 AT 12:41 AM
Tiny
SOUTHPAW3612
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  • 11 POSTS
Im not quite sure. Im nothing of a mechanic. So im unsure of where that is located. Reading forums, ive read that it could be the serpentine belt or belt tensioner possibly.
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Monday, January 30th, 2012 AT 12:50 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
They are all close to the fan clutch. The clutch will sound like a jet noise or very loud fan.
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Monday, January 30th, 2012 AT 12:55 AM
Tiny
SOUTHPAW3612
  • MEMBER
  • 11 POSTS
Nah, it sounds more like a squealing, maybe I described it wrong
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Monday, January 30th, 2012 AT 12:58 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
Try this. Start the engine and open the hood. Take a small cup of water and pour it on the belt while the engine is running. Does the sound change?

Let me know. Also, wear old clothes and protect your eyes because the water will most likely spray out at you.
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Monday, January 30th, 2012 AT 1:11 AM
Tiny
SOUTHPAW3612
  • MEMBER
  • 11 POSTS
It doesnt do it at an idle or regular driving. Shall I still try this?
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Monday, January 30th, 2012 AT 3:11 AM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
IF YOU IDLE 'ER ON UP, DOES IT DO IT?

HAVE YOUR PAL POUR THE WATER

NO SENSE IN GETTING WET, NOW THAT YOU KNOW YOU WILL!

IF YOU TAKE A PIECE OF GARDEN HOSE, OR HEATER HOSE ABOUT 4 FEET LONG, STICK ONE END IN YOUR EAR, USE THE OTHER END LIKE A STETHOSCOPE. YOU MAY BE ABLE TO ISOLATE THE AREA, WHILE YOU PAL GIVES IT ENOUGH PEDAL TO MAKE IT SQUEAL

COULD BE BEARINGS IN AN ACCESSORY DRIVEN BY THE ENGINE, IF IT GETS DOWN TO IT, REMOVE THE DRIVE BELT AND SEE IF IT STOPS.

PLEASE DO WATCH OUT FOR THOSE PESKY MOVING PARTS UNDER THERE, THEY WILL PUT A HURTIN' ON YOU!

OK---RETURN WITH SOME REAL POSITIVE RESULTS

THE MEDIC
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Monday, January 30th, 2012 AT 5:34 AM

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