Engine Knock - 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 02-10-2012
98rangerxlt's Avatar
Member
Thread Starter
 
Join Date: Mar 2009
Location: Bakersfield, CA
Posts: 725
Engine Knock

Will noisy lifters make the motor sound like It's knocking, or is there something else I should be looking at. It does it at idle and under light load, but when under heavy acceleration it does not do it. I am running motorcraft 10w30 syn blend with a motorcraft filter. Also change oil every 3000 miles. Just getting some ideas since this motor only has 64,000 miles and hoping i can get well over 100,000 miles thanks.
Reply With Quote
  #2  
Old 02-10-2012
Blhde's Avatar
Member
 
Join Date: Oct 2005
Location: Northern IL
Posts: 2,804
The lifters make a light ticking sound, the rods make a knocking noise.

In this late OHV production ford shortened piston skirts allowing the pistons to wobble in the bore causing something called "piston slap". On fresh oil change my truck will sound like a small diesel idling, but will go away after some miles.
Reply With Quote
  #3  
Old 02-10-2012
rangercillo's Avatar
Member
 
Join Date: Apr 2010
Location: Ensenada Mexico
Posts: 15
why don't you try mineral instead of syn??? i use 5-20 valvoline durablend it's Semi-synthetic oil‎, i believe. fram filter and it goes just fine!!

Sorry for my english :S
Reply With Quote
  #4  
Old 02-11-2012
98rangerxlt's Avatar
Member
Thread Starter
 
Join Date: Mar 2009
Location: Bakersfield, CA
Posts: 725
Probably just piston slap like Blhde said, just notice it more with the syn blend then i did with conventional.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2.3 knock knock 1998 ford ranger 5speed SOHC - 2.3L & 2.5L Lima Engines 0 06-23-2014 03:23 PM
Knock knock, Please help Jack Man 2.9L & 3.0L V6 Tech 3 08-12-2009 09:14 PM
knock knock goes the engine. cdn2x4ranger 2.9L & 3.0L V6 Tech 3 11-04-2007 01:03 AM
What does an engine knock actually sound like? jmainia21 2.3L & 2.5L I4 Tech 5 03-12-2007 02:50 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 12:43 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.