4.0 SOHC Engine Noise - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-15-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
4.0 SOHC Engine Noise

Hi all. Bought my 2001 4.0 4x4 in 2009 with 90K. Upon cold start up, the engine would always tick in a rythmic fashion, until it warmed up. Now at 115K, the engine is noisy at all RPMs, in Neutral, and whether or not the clutch is in or not. The noise gets progressively louder as RPMs increase. I replaced the rear timing chain tensioner and no improvement. I will do the front soon. Do you think one of the guides have gone? However, before the constant noise, there was no noise specifically between 2-3K RPMs that I could hear. Suggestions are welcome. Thanks.
Reply With Quote
  #2  
Old 01-24-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
Really, no one wants to help me diagnose this? I am thinking the rear guide has gone, but wanted some opinions besides my own.
Reply With Quote
  #3  
Old 01-24-2012
powerranger262's Avatar
Member
iTrader: (1)
 
Join Date: Feb 2009
Location: Hartford, WI
Posts: 1,222
Where is the noise located? Can you get a video of it?
Reply With Quote
  #4  
Old 01-25-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
I will try to get a video later. It is primarily located on the underside, from what I can tell it is near the engine/trans connection. I can hear the noise through the shift boot and also outside of the cab if I am outside. The noise seems to get quieter as I walk away from the door towards the front. The noise is not random, it is a pattern that increases as RPM increases.
Reply With Quote
  #5  
Old 01-25-2012
djfllmn's Avatar
Moderator
 
Join Date: Mar 2009
Location: York, PA
Posts: 5,796
my truck ticks until its warmed up...just the aluminum heads coming up to temp...aluminum is notiously noisy while it warms up
Reply With Quote
  #6  
Old 01-25-2012
20102wdRanger's Avatar
Member
 
Join Date: Jan 2012
Location: Port Hope. Ontario
Posts: 66
Noisy lifters??
Reply With Quote
  #7  
Old 01-25-2012
20102wdRanger's Avatar
Member
 
Join Date: Jan 2012
Location: Port Hope. Ontario
Posts: 66
Could need an adjustment in the top end valve clearance??
Reply With Quote
  #8  
Old 01-25-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
The truck does it even when fully warmed up. It sounds like metal on metal. It also sounds like a diesel running. It is loud enough that I can hear it through the shift boot. Does anyone have a good video of the timing chain rattle that I can compare to?
Reply With Quote
  #9  
Old 01-25-2012
StxDangerRanger's Avatar
RF Veteran
iTrader: (2)
 
Join Date: Dec 2010
Location: Flat Rock, Mi
Posts: 6,313
Lifters.
ALL 4.0 rangers do this. ALL of them.
Get used to it.
Reply With Quote
  #10  
Old 01-25-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
It happened suddenly and is ALL the time... Would you really hear the lifters from the shift boot?
Reply With Quote
  #11  
Old 01-25-2012
Kris03's Avatar
Member
 
Join Date: Jun 2011
Location: glastonbury, ct
Posts: 1,236
hows it running? smoothly? skipping? misfires?
Reply With Quote
  #12  
Old 01-25-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
Runs great, no loss of power. I think the MPG is going down. I have only done only fillup since the problem emerged. I used to get 16-17 in the winter and last fillup I only got 14.5. No misfires, I can't hear anything from engine specifically. It is loudest if you step out of the cab and kneel down. If you move away from the cab it is not as noticeable. I just replaced throw out bearing, clutch, pressure plate, and slave two weeks ago just after this problem started. The truck shifts fine, no issues and the gears are smooth. I don't think its the tranny.
Reply With Quote
  #13  
Old 01-25-2012
Kris03's Avatar
Member
 
Join Date: Jun 2011
Location: glastonbury, ct
Posts: 1,236
last time you did a coil, spark plugs, plug wires?
exhaust leak?
Reply With Quote
  #14  
Old 01-25-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
I haven't actually ever replaced any of those. I don't think I have an exhaust leak either. The truck only used to clank when cold. I went to let it warm up one day and it didn't go away after my 10 mile trip to work. I have replaced both timing chain tensioners with almost no results.
Reply With Quote
  #15  
Old 01-25-2012
Kris03's Avatar
Member
 
Join Date: Jun 2011
Location: glastonbury, ct
Posts: 1,236
Id start with the wires and plugs. How many miles it? The wires could be arcing and that ur hearing
Reply With Quote
  #16  
Old 01-25-2012
StxDangerRanger's Avatar
RF Veteran
iTrader: (2)
 
Join Date: Dec 2010
Location: Flat Rock, Mi
Posts: 6,313
Easy way to check to see if your wires are arching:
get your engine bay wet, everything except your fuse panel/battery area.
While engine bay is wet, start truck. If you've got an arching wire, you'll see it right away.
Reply With Quote
  #17  
Old 01-25-2012
04RangerDave's Avatar
JDM> RANGER

iTrader: (3)
 
Join Date: Jul 2010
Location: RI
Posts: 5,030
Quote:
Originally Posted by StxDangerRanger View Post
Easy way to check to see if your wires are arching:
get your engine bay wet, everything except your fuse panel/battery area.
While engine bay is wet, start truck. If you've got an arching wire, you'll see it right away.
Straight old school

X2
Reply With Quote
  #18  
Old 01-25-2012
StxDangerRanger's Avatar
RF Veteran
iTrader: (2)
 
Join Date: Dec 2010
Location: Flat Rock, Mi
Posts: 6,313
Old School?
Thats how i do it man. Its how my old man did it, and thats how his old man did it.
I don't need no computer to tell me what to do.
Reply With Quote
  #19  
Old 01-25-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
115K on the truck. What kind of sound would the wires be making? This sounds like a distinct metal on metal or a piece of metal vibrating.
Reply With Quote
  #20  
Old 01-25-2012
StxDangerRanger's Avatar
RF Veteran
iTrader: (2)
 
Join Date: Dec 2010
Location: Flat Rock, Mi
Posts: 6,313
Does the sound increase with RPMs?
Reply With Quote
  #21  
Old 01-26-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
Yes the sound increases with RPMs. Could it be a heat shield loose or maybe a bad cat?
Reply With Quote
  #22  
Old 01-28-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
Ok, guys, here's a video. I took it on my phone so you may have to turn your speakers up.

Reply With Quote
  #23  
Old 01-28-2012
powerranger262's Avatar
Member
iTrader: (1)
 
Join Date: Feb 2009
Location: Hartford, WI
Posts: 1,222
I don't know what the hell that is, but it sure doesn't sound good.
Reply With Quote
  #24  
Old 01-31-2012
Member
Thread Starter
 
Join Date: Nov 2009
Location: Branchville, NJ
Posts: 59
Bump to see if anyone else can help.
Reply With Quote
  #25  
Old 01-31-2012
aluminator's Avatar
Member
 
Join Date: Oct 2011
Location: Lexington,KY
Posts: 158
Quote:
Originally Posted by StxDangerRanger View Post
Easy way to check to see if your wires are arching:
get your engine bay wet, everything except your fuse panel/battery area.
While engine bay is wet, start truck. If you've got an arching wire, you'll see it right away.
or in the dark.Also you can remove one plugwire at a time while running to see which one changes the idling of the engine in the least.If you pull one and the engine doesn't stumble,bingo.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
4.0 sohc engine clicking/ticking noise sheen 4.0L OHV & SOHC V6 Tech 0 08-29-2013 03:46 PM
school me on the SOHC timing chain noise swickwake 4.0L OHV & SOHC V6 Tech 11 06-04-2013 03:19 PM
4.0 sohc noise (might be normal) mj550 4.0L OHV & SOHC V6 Tech 5 09-22-2011 04:38 AM
4.0L SOHC noise ranger4.0 4.0L OHV & SOHC V6 Tech 12 07-11-2010 06:17 PM
4.0 sohc rattle noise? kymudder08 4.0L OHV & SOHC V6 Tech 43 06-08-2009 12:02 AM


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 -6. The time now is 09:38 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.