Whining noise when accelerating - '05 Ram 3.7l - Jeep Cherokee Forum
Jeep Cherokee Forum


Other Vehicles. Other Jeep models & cars and trucks of other makes Talk any vehicle tech in here other than Cherokees.

Whining noise when accelerating - '05 Ram 3.7l

Reply
 
 
 
Thread Tools Search this Thread
Old 04-13-2017, 09:34 PM   #1
Seasoned Member
Thread Starter
 
4BangerDanger's Avatar
 
Join Date: Dec 2015
Location: Watertown, South Dakota
Posts: 289

View 4BangerDanger's Photo Album My Photos
Year: 1993
Model: Cherokee
Engine: 2.5L
Default Whining noise when accelerating - '05 Ram 3.7l

2005 Dodge Ram 1500 3.7l V6 rwd with approx. ~160,000 miles

My truck has starting making a "whining" noise whenever I am accelerating. The pitch and volume change the faster I go and I first notice it around 20 mph. It kind of sounds like a supercharger. The noise reverberates through the cab so I've had trouble telling whether the sound originates from the front end or rear.

I checked the serpentine belt first but that looked good. I put some WD-40 on the belt but that made no difference. Then I took the belt off and turned all of the pulleys by hand but they all checked out. After that I decided to look in the rear end and noticed my differential fluid had gotten very low. Oddly I couldn't find any source of the leak. I cleaned the differential and put new fluid in it but that had no effect on the whining sound.

I'm stumped. So far the noise has not affected performance whatsoever, it is just annoying. Does anyone have any ideas? Any 3.7 experts on CF?
4BangerDanger is offline   Reply With Quote
Old 04-15-2017, 07:51 PM   #2
Musicology Intern
 
Turbo X_J's Avatar
 
Join Date: Sep 2009
Location: ☼ Blackhole Sun
Posts: 7,570

View Turbo X_J's Photo Album My Photos
Year: My Jeep is a GMC
Default

42RLE?
Check the fluid level & condition the pump could be failing.
Turbo X_J is offline   Reply With Quote
Old 04-16-2017, 04:56 AM   #3
asphalt cowboy
 
s346k's Avatar
 
Join Date: Feb 2012
Location: central IN
Posts: 1,806

View s346k's Photo Album My Photos
Year: 1997
Model: Cherokee
Engine: 4.0
Default

does the pitch rise and fall with rpm or road speed? if road speed check driveline, if rpm check engine/trans. rear dif fluid being low is suspect. if it ran low for awhile the damage may be done already.
s346k is offline   Reply With Quote
Old 04-17-2017, 08:38 AM   #4
Seasoned Member
Thread Starter
 
4BangerDanger's Avatar
 
Join Date: Dec 2015
Location: Watertown, South Dakota
Posts: 289

View 4BangerDanger's Photo Album My Photos
Year: 1993
Model: Cherokee
Engine: 2.5L
Default

Quote:
Originally Posted by Turbo X_J View Post
42RLE?
Check the fluid level & condition the pump could be failing.
Correct. The fluid looks good.

Quote:
Originally Posted by s346k View Post
does the pitch rise and fall with rpm or road speed? if road speed check driveline, if rpm check engine/trans. rear dif fluid being low is suspect. if it ran low for awhile the damage may be done already.
The pitch changes with road speed. I'll take a look at the driveline. I was concerned about the diff too. When I cleaned it out I didn't notice any wear, thankfully. But I'm still new to all of this so I easily could have missed it.


Whining noise when accelerating - '05 Ram 3.7l-img_20170413_171121.jpg
4BangerDanger is offline   Reply With Quote
 
 
Reply



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

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 09:41 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description: