Sucking noise sort of whistle through intake
Thread Starter
Newbie
Joined: Jan 2018
Posts: 7
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From: Southern Idaho
Year: 1989
Model: Cherokee(XJ)
Engine: 4.0 6cyl
Sucking noise sort of whistle through intake
I have a a 1989 jeep cherokee with the inline 6 and it has a noise coming from the cold air intake almost a whistle or sucking noise what could cause this? It is fairley loud you hear it over the engine or along with it i should say
CF Veteran
Joined: Jan 2014
Posts: 1,546
Likes: 353
From: District of Columbia
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
Do you get this at idle or very light throttle only? How about half to full throttle? My guess is it's just the sound of air getting sucked through a mostly closed throttle. Going to a cold air intake makes it more obvious since you get less muffling than the factory airbox.
Thread Starter
Newbie
Joined: Jan 2018
Posts: 7
Likes: 0
From: Southern Idaho
Year: 1989
Model: Cherokee(XJ)
Engine: 4.0 6cyl
This is obvious at idle when on start up and every once in a while i get a spudder or misfire under heavy loads like into high winds or if i gas it all the way it may or may not realated no clue to be honest.
Senior Member
Joined: Dec 2017
Posts: 622
Likes: 9
From: Calgary, AB
Year: 1998
Model: Grand Cherokee (ZJ)
Engine: 5.2
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