2011 4.0 catch can - 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.

LinkBack Thread Tools Search this Thread
Old 09-28-2014
Thread Starter
Join Date: Sep 2014
Location: Edmonton
Posts: 11
2011 4.0 catch can

I want to put in a catch can for my 2011 ranger 4.0l
I can't find any kits for it, could anyone help? please?
Reply With Quote
Old 09-28-2014
RF Veteran
iTrader: (1)
Join Date: Jan 2014
Location: Vancouver, BC
Posts: 7,606
Not sure why you want one but you can use any off the shelf kit that uses the same or slightly larger diameter hose.

Catch can attaches to the PCV Valve hose so that is the size you want to match.

Unless you have very high miles, 250k+ or you know you have some bad rings, a catch can really isn't needed.

Oil vapor in the crank case and valve cover comes from Blow-by.
When a cylinder fires, very hot expanding gases form and that pushes the piston down to give you power, but some of those very hot expanding gases will push passed the piston rings and into the crankcase, this is called blow-by, all piston engines have blow-by, gas or diesel, even steam, lol, new engines have blow-by and as the rings get older blow-by increases.
As these very hot gases travel passed the rings they vaporize some of the oil on the cylinder walls, this is the source of the oil vapor in the crankcase and valve covers.

Oil lubing the bearings and valve train is squirted out, NOT vaporized, this oil just settles out on surfaces very fast, so is not pulled into the PCV Valve hose.

The Catch can is only used on high miler engines to prevent oil fouling of spark plugs from excessive blow-by.
Any other reason is just someone trying to sell you something you don't need.
Leaking valve guide seals or oil leaks are not effected by catch can use, and if not installed correctly it can make these worse.

Last edited by RonD; 09-28-2014 at 12:02 PM.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Can't catch a break! DSFD506 Snapshots 19 11-21-2010 12:58 PM
Xtreme catch all mats...VT...25 bucks... buckgnarly Interior, Exterior, Electrical, & Misc. 15 11-23-2009 07:31 PM
Catch all mats + vinyl floor covering? pacodiablo General Ford Ranger Discussion 14 01-25-2006 06:11 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 06:28 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.