Jeep Cherokee Forum

Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Whistle

Thread Tools
 
Search this Thread
 
Old 04-17-2010, 12:52 PM
  #1  
Member
Thread Starter
 
Loganfwx's Avatar
 
Join Date: Feb 2010
Location: Greeley, CO
Posts: 123
Likes: 0
Received 0 Likes on 0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 Straight 6 HO
Default Whistle
So I've got a whistle kinda hum noise that starts at almost exactly 40 MPH. Only when I'm accelerating or applying throttle. Throttle body or something?
Loganfwx is offline  
Reply Like
Old 04-17-2010, 12:56 PM
  #2  
Member
 
Madman's Avatar
 
Join Date: Mar 2010
Location: Oak Hills
Posts: 177
Received 0 Likes on 0 Posts
Year: 1996
Model: Cherokee
Engine: 4.0 I6 K&N, Flowmaster, accel yellow, 703 injectors, SS fuel lines routed through CAI
Default
Vacuum leak?

Check your hoses and their wear
Madman is offline  
Reply Like
Old 04-17-2010, 01:25 PM
  #3  
CF Veteran
 
93gc40's Avatar
 
Join Date: Mar 2009
Location: Visalia, Kalifornia, ussa
Posts: 2,750
Likes: 0
Received 2 Likes on 2 Posts
Year: 1996
Model: Cherokee
Engine: 4.0
Default
Look for leaks along the intake. Is there a throtle spacer? They whistle sometimes
93gc40 is offline  
Reply Like
Old 04-17-2010, 03:17 PM
  #4  
Member
 
Heinz57Fox's Avatar
 
Join Date: Feb 2010
Location: Michigan
Posts: 129
Likes: 0
Received 0 Likes on 0 Posts
Year: 1996
Model: Cherokee
Engine: 4.0
Default
Check your vacuum tubes I had the same problem with mine and one of the vacuum tubes had come out.
Heinz57Fox is offline  
Reply Like
Old 04-17-2010, 09:56 PM
  #5  
Member
Thread Starter
 
Loganfwx's Avatar
 
Join Date: Feb 2010
Location: Greeley, CO
Posts: 123
Likes: 0
Received 0 Likes on 0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 Straight 6 HO
Default
I think my PCV/CCV/whatever goes from the valve cover to the intake isn't quite air tight.
Loganfwx is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Whistle noise at highway speed - Stops when AC is off recirc
SouthSeaPirate
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
09-30-2015 03:40 PM
New guy from Joliet, Illinois
timelord
Introductions
4
09-24-2015 01:16 PM
'90 XJ High-pitched whistle and idles high
bufbarnaby
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
11
09-14-2015 09:14 AM
Intake Leak. Need help
Doogluus88
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
09-01-2015 06:11 AM
Whine of death?
AKghandi
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
08-28-2015 02:09 PM
Back to Subforum
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
View Next Unread
heat shield

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



Advanced Search
Quick Reply: Whistle


Reply Closed Thread Share

All times are GMT -5. The time now is 04:57 PM.