Knocking 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 04-07-2009
kenny_216's Avatar
Member
Thread Starter
 
Join Date: Aug 2008
Location: Phoenix, AZ
Posts: 879
Knocking noise????

My truck recently started making a knocking noise, but its not an engine knock. It only does it at idle when its warm. has anyone else experienced this?
Reply With Quote
  #2  
Old 04-07-2009
kenny_216's Avatar
Member
Thread Starter
 
Join Date: Aug 2008
Location: Phoenix, AZ
Posts: 879
nobodys got anything for me?
Reply With Quote
  #3  
Old 04-10-2009
B-Dunk88's Avatar
Member
 
Join Date: Mar 2009
Location: spanaway, WA
Posts: 28
does it sound like a gremlin in pounding your hood trying to get out... lik continuous thumping? that is what i got...
Reply With Quote
  #4  
Old 04-10-2009
Toreador4x4's Avatar
Member
iTrader: (6)
 
Join Date: Apr 2007
Location: Livonia, MI
Posts: 3,958
There is a TSB on this. there is a lower coolant hose that must be replaced. steam pockets build up in the cooling system and cause this thumping noise. Redneckstone had to get this hose from my work. Go to your dealership and tell them that you need the TSB part for your coolant system
Reply With Quote
  #5  
Old 04-10-2009
kenny_216's Avatar
Member
Thread Starter
 
Join Date: Aug 2008
Location: Phoenix, AZ
Posts: 879
are u sure its the same thing though? my buddy thinks its the water pump. its not a thumping noise with my truck, its an actual knock. it sounds just like an engine knock but its not constant
Reply With Quote
  #6  
Old 04-10-2009
Toreador4x4's Avatar
Member
iTrader: (6)
 
Join Date: Apr 2007
Location: Livonia, MI
Posts: 3,958
When it happens is it intermittent? grab the upper radiator hose and see if it jumps when it happens
Reply With Quote
  #7  
Old 04-11-2009
kenny_216's Avatar
Member
Thread Starter
 
Join Date: Aug 2008
Location: Phoenix, AZ
Posts: 879
ok ill let you know. thanx
Reply With Quote
  #8  
Old 04-13-2009
kenny_216's Avatar
Member
Thread Starter
 
Join Date: Aug 2008
Location: Phoenix, AZ
Posts: 879
the upper hose isnt jumping
Reply With Quote
  #9  
Old 04-13-2009
Toreador4x4's Avatar
Member
iTrader: (6)
 
Join Date: Apr 2007
Location: Livonia, MI
Posts: 3,958
thats odd then, forgot to ask., is it a 4.0 OHV?
Reply With Quote
  #10  
Old 04-14-2009
chainfire's Avatar
Member
iTrader: (1)
 
Join Date: Oct 2007
Location: Mission B.C.
Posts: 3,126
Quote:
Originally Posted by Toreador4x4 View Post
thats odd then, forgot to ask., is it a 4.0 OHV?
His profile says it is an 04 FX4, so its a SOHC right??
Reply With Quote
  #11  
Old 04-14-2009
Toreador4x4's Avatar
Member
iTrader: (6)
 
Join Date: Apr 2007
Location: Livonia, MI
Posts: 3,958
yes yes...fail on my part for not reading
Reply With Quote
  #12  
Old 04-20-2009
kenny_216's Avatar
Member
Thread Starter
 
Join Date: Aug 2008
Location: Phoenix, AZ
Posts: 879
so does anybody know what else it could be?
Reply With Quote
  #13  
Old 12-15-2013
Member
 
Join Date: Dec 2013
Location: Redmond, WA
Posts: 4
Quote:
Originally Posted by B-Dunk88 View Post
does it sound like a gremlin in pounding your hood trying to get out... lik continuous thumping? that is what i got...
I just discovered this forum and it is great! I too have a 91 ranger 4.0 V6 and have had the thumping noise on/off for several years. sounds like it is coming from inside my glovebox. were you able to fix the problem? if so, how? Thanks.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Need Help With Knocking Noise rangeredge01 2.9L & 3.0L V6 Tech 10 04-24-2010 04:39 PM
Knocking noise when accelerating 02xlt4x4 General Technical & Electrical 4 06-18-2009 02:22 PM
Knocking noise in front--Please help davedwards Suspension Tech 3 06-08-2008 01:20 PM
1994 Mazda B3000 4x4 SE knocking noise Jordan94 2.9L & 3.0L V6 Tech 4 08-29-2007 05:22 AM
Clicking Knocking Noise When Wet Or Cold JASONGR81 General Technical & Electrical 2 12-11-2006 09:33 PM


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 09:06 PM.


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.