Whining noise
02-25-2014, 07:36 AM
#1
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Location: Indiana
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Year: 1996
Model: Cherokee
Engine: 4.0 HO
Whining noise
Xj engine is making a whining noise . upon revving it almost sounds like a big air leak. and when getting on it , if i reach about 4k rpm then it will not accelerate it almost decellerates.
02-25-2014, 07:41 AM
#2
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Year: 1998 Sport
Model: Cherokee
Engine: 4.0
Have you checked for vacuum leaks? Check all of the vac lines also check the intake manifold to make sure that it's tight especially to the rear of the engine.
hmmmm........RR
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04-09-2014, 08:30 AM
#9
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Year: 1991
Model: Cherokee
Engine: 4.0 I-6
I have an OEM K&N air filer on my '91 and it doesn't do that. Maybe just something in the manufacturing of that particular filter.
04-09-2014, 09:19 AM
#11
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Year: 1988
Model: Cherokee
Engine: 4.0
01-18-2018, 07:26 AM
#12
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Year: 2001
Model: Cherokee
Engine: 4.0L
This also happened to my xj when I swiched to a Airaid cold air filter (cone). Only happens when I drive over 30 mph, not when reving in neutral. Very strange.The tone changes the faster I go.Any ideas??
01-18-2018, 08:38 AM
#13
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Year: '92
Model: Cherokee (XJ)
Engine: 4.0
Maybe the wind is whistling through the grill where the air box used to be??? Just a thought.
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