Engine Whine, Anybody got an idea ? answer?
Thread Starter
Newbie
Joined: Mar 2019
Posts: 4
Likes: 0
From: NC
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
Engine Whine, Anybody got an idea ? answer?
High pitch whine when cranking and running for first 15 min of driving. Continues to whine on acceleration and sound continues in all gears including P. Whine changes with RPM. Whine seems to be louder in cold weather. Please tell me my trans isn’t failing. This is my daily!
Last edited by ChiliRedXJ; Mar 7, 2019 at 10:14 PM.
CF Veteran
Joined: Dec 2015
Posts: 2,139
Likes: 93
From: Syracuse, NY
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0L
x2. Power steering fluid level and pump is first thing to check. Also inspect the condition of the fluid in the reservoir after running for a while then shutting down....see if it is frothy or has a lot of bubbles (it shouldn't). If it whines in Park it is probably not related to the transmission.
CF Veteran
Joined: Nov 2017
Posts: 3,700
Likes: 238
From: Groton, MA
Year: 1995
Model: Cherokee(XJ)
Engine: I6 4.0L
x3 - check power steering.
The whine you describe definitely sounds more like an accessory whine than anything else. You're driving a 20+ year old vehicle - it wouldn't be surprising that any of the accessory items has a bearing that's going.
(By accessory I mean any pulley driven thing attached to the engine - PS pump, alternator, water pump, etc.)
If the PS isn't low, open the hood and listen on start-up - if nothing is obviously making noise, you can spray a little wd-40 on each of the pulleys (watch out for backsplash) one at a time - if the noise changes then you've found the culprit. Replace as necessary.
The cold generally brings out the noise in a bearing that's on the way out. Once the engine heats up and the metal expands and grease starts moving around, the sound can go away.
Like Jordan said, the fact that the sound is constant regardless of transmission state is a good sign that it's something else and not the transmission.
The whine you describe definitely sounds more like an accessory whine than anything else. You're driving a 20+ year old vehicle - it wouldn't be surprising that any of the accessory items has a bearing that's going.
(By accessory I mean any pulley driven thing attached to the engine - PS pump, alternator, water pump, etc.)
If the PS isn't low, open the hood and listen on start-up - if nothing is obviously making noise, you can spray a little wd-40 on each of the pulleys (watch out for backsplash) one at a time - if the noise changes then you've found the culprit. Replace as necessary.
The cold generally brings out the noise in a bearing that's on the way out. Once the engine heats up and the metal expands and grease starts moving around, the sound can go away.
Like Jordan said, the fact that the sound is constant regardless of transmission state is a good sign that it's something else and not the transmission.
CF Veteran
Joined: Nov 2015
Posts: 2,863
Likes: 201
From: syracuse ny
Year: 1997 230,000 miles
Model: Grand Cherokee (ZJ)
Engine: 4.0, new lifters valve job with new springs and exhaust valves, preload set with shims
Torque converter. Ignored mine for the last 60k. Serve some cheese with the whine.
Thread Starter
Newbie
Joined: Mar 2019
Posts: 4
Likes: 0
From: NC
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
Thread Starter
Newbie
Joined: Mar 2019
Posts: 4
Likes: 0
From: NC
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
x2. Power steering fluid level and pump is first thing to check. Also inspect the condition of the fluid in the reservoir after running for a while then shutting down....see if it is frothy or has a lot of bubbles (it shouldn't). If it whines in Park it is probably not related to the transmission.
x3 - check power steering.
The whine you describe definitely sounds more like an accessory whine than anything else. You're driving a 20+ year old vehicle - it wouldn't be surprising that any of the accessory items has a bearing that's going.
(By accessory I mean any pulley driven thing attached to the engine - PS pump, alternator, water pump, etc.)
If the PS isn't low, open the hood and listen on start-up - if nothing is obviously making noise, you can spray a little wd-40 on each of the pulleys (watch out for backsplash) one at a time - if the noise changes then you've found the culprit. Replace as necessary.
The cold generally brings out the noise in a bearing that's on the way out. Once the engine heats up and the metal expands and grease starts moving around, the sound can go away.
Like Jordan said, the fact that the sound is constant regardless of transmission state is a good sign that it's something else and not the transmission.
The whine you describe definitely sounds more like an accessory whine than anything else. You're driving a 20+ year old vehicle - it wouldn't be surprising that any of the accessory items has a bearing that's going.
(By accessory I mean any pulley driven thing attached to the engine - PS pump, alternator, water pump, etc.)
If the PS isn't low, open the hood and listen on start-up - if nothing is obviously making noise, you can spray a little wd-40 on each of the pulleys (watch out for backsplash) one at a time - if the noise changes then you've found the culprit. Replace as necessary.
The cold generally brings out the noise in a bearing that's on the way out. Once the engine heats up and the metal expands and grease starts moving around, the sound can go away.
Like Jordan said, the fact that the sound is constant regardless of transmission state is a good sign that it's something else and not the transmission.
Ended up being the torque converter!
Trending Topics
Thread Starter
Newbie
Joined: Mar 2019
Posts: 4
Likes: 0
From: NC
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
You ended up being the correct guesser. Jesus, how did u manage that ? I made it about 250-300 miles after the noise started. the TC failed and threw shrapnel and destroyed my pump as well. Talk about a mess.
Thread
Thread Starter
Forum
Replies
Last Post
1st jeep owner
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
May 20, 2016 08:09 AM
LiFteDLiFe97
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
25
Apr 17, 2010 06:51 AM
seed
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
6
Sep 30, 2008 02:54 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)