Weird friction noise when I start up. - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 09-20-2012, 12:11 AM   #1
Jeeper
 
HeyImWade's Avatar
 
Join Date: Jul 2012
Location: Mississippi
Posts: 107
Weird friction noise when I start up.

So Saturday(about 5 days ago) I went mudding with my buddies and I got stuck for two hours and my front passenger side tire was almost completely submerged. The intake was clean of any mud and everything works how it should except for when I start the engine, the first 2 seconds it makes a weird friction noise and then it's gone once the engine is fully started and running. If it helps, I have a standard transmission. Could it be my starter or do I have a loose belt under the hood or what?
Attached Thumbnails
Click image for larger version

Name:	Photo Sep 15, 12 47 09 PM.jpg
Views:	83
Size:	222.8 KB
ID:	161881  

HeyImWade is offline   Quote
Old 09-20-2012, 12:17 AM   #2
Jeeper
 
Join Date: May 2012
Posts: 260
im gonna say it could be cooling fan maybe??? i mudded in mine and got a weird vibration but it would hppen when fan kicked on so on second thought that might not be it lol but keep and eye out and keep your jeep washed on in the engine bay lol

amarillojeepguy is offline   Quote
Old 09-20-2012, 12:21 AM   #3
Supporting Member

WF Supporting Member
 
jeepwayoflife's Avatar
 
Join Date: Nov 2011
Location: California/Montana
Posts: 3,193
Maybe clutch? Did you use the clutch while stuck in there? I assume you did because you must have stopped and started the engine. If you did, it could have allowed mud inbetween the clutch and flywheel, but its weird that its only for a couple seconds
__________________
--------------------------------------------------------
jeepwayoflife is offline   Quote
Old 09-20-2012, 12:39 AM   #4
Jeeper
 
Join Date: Sep 2012
Location: Boise
Posts: 99
Since the whole motor creates friction generally could you be more specific as to where the noise generates from? Checked ur oil to be sure it's not contaminated? Is this a metal on metal noise or an electric noise? Perhaps rubber on metal?
__________________
J.e.e.p. just emptied every pocket
Rob and TJ is offline   Quote
Old 09-20-2012, 12:52 AM   #5
Jeeper
 
HeyImWade's Avatar
 
Join Date: Jul 2012
Location: Mississippi
Posts: 107
Quote:
Originally Posted by Rob and TJ View Post
Since the whole motor creates friction generally could you be more specific as to where the noise generates from? Checked ur oil to be sure it's not contaminated? Is this a metal on metal noise or an electric noise? Perhaps rubber on metal?
It sounds like metal on metal and it sounds like it's coming from below the engine on the driver's side.
HeyImWade is offline   Quote
Old 09-20-2012, 11:57 AM   #6
Jeeper
 
Join Date: Sep 2012
Location: Boise
Posts: 99
Hmmmm interesting location for a noise like that. If its the 4.0 the noise should be centralized since everything is inline. It is possible that if u turned the jeep off while the tailpipe was under water that you sucked some water into the motor. My reccomendation is change the oil but run seafoam in the old oil. I.e go to oriellys dump the seafoam in the oil in their parking lot drive home and change the oil. Do not run seafoam for more than a few miles before changing. When you change the oil look for a zinc additive. This helps the 4.0 run a little smoother. If the problem persists after runnig for about 50 miles. Have somone there at start up so you can pinpoint the noise directly. Keep me posted! Hope this works
__________________
J.e.e.p. just emptied every pocket
Rob and TJ is offline   Quote
Old 09-20-2012, 12:36 PM   #7
Jeeper
 
Join Date: Oct 2011
Posts: 1,654
Quote:
Originally Posted by HeyImWade View Post
It sounds like metal on metal and it sounds like it's coming from below the engine on the driver's side.
Could you disclose your year model and engine?
tangofox007 is offline   Quote
Old 09-21-2012, 09:33 AM   #8
Jeeper
 
HeyImWade's Avatar
 
Join Date: Jul 2012
Location: Mississippi
Posts: 107
Quote:
Originally Posted by tangofox007

Could you disclose your year model and engine?
It's a TJ SE and I have an inline 4 (2.5l). And I have 76XXX miles on it.
HeyImWade is offline   Quote
Old 09-21-2012, 02:58 PM   #9
Jeeper
 
Join Date: Jul 2012
Posts: 40
Is the sound there only when you have the ignition turned to start the car? If so it could easily be Bindex/Starter related.
SPEC-01 is offline   Quote
Old 09-21-2012, 03:02 PM   #10
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 35,395
Images: 2
Quote:
Originally Posted by jeepwayoflife View Post
Maybe clutch? Did you use the clutch while stuck in there? I assume you did because you must have stopped and started the engine. If you did, it could have allowed mud inbetween the clutch and flywheel, but its weird that its only for a couple seconds
That'd be my first guess too. The clutch pedal should never be stepped on when in deep mud. Doing so just lets mud flow in between the clutch disk and flywheel.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote
Old 09-21-2012, 03:13 PM   #11
Jeeper
 
Join Date: Jul 2012
Posts: 40
If there is no other sound relative to clutch engagement/release then this is unlikely. If there were mud/grit between the clutch disc and corresponding pressure-plate and flywheel surfaces you would expect to hear the noise at times other than start-up only. I agree with not stepping on the clutch pedal, and thus releasing the clutch, in situations like this but the sound is seemingly there only during start-up. The one thing that happens during start-up, but occurs at no other time, is the actuation of the bindex and its subsequent interaction with the ring-gear.
SPEC-01 is offline   Quote
Old 09-21-2012, 03:27 PM   #12
Jeeper
 
C.L.'s Avatar
 
Join Date: Mar 2011
Location: North NJ
Posts: 2,199
Maybe the starter is caked with grit? You'd hear that grinding away only at startup. And if the solenoid return spring is weak, the motor may be spinning up the starter for a little while after you release the key.
C.L. is offline   Quote
Old 09-21-2012, 03:59 PM   #13
Jeeper
 
Join Date: Jul 2012
Posts: 40
That is very possible!

SPEC-01 is offline   Quote
Reply

Tags
engine , noise , startup

Thread Tools

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




Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 04:53 AM.


User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC