• Hello Guest, we are proud to now have our Wiki online that is completely compiled and written by our members. Feel free to browse our Jeep-CJ Wiki or click on any orange keyword when looking at posts in the forum.

PCV Valve for 258?

PCV Valve for 258?

jzak

Old Time Jeeper
Posts
1,042
Media
8
Thanks
11
Location
Pittsboro, NC
Vehicle(s)
1981 CJ5/258 4.2L I6, Tremec T-176 4-speed, Dana 300, Power Steering, Howell Throttle Body Injection System, Warn Locking Hubs, Warn Rock Crawler front/rear bumper with Tire Swing Carrier, Full Roll Cage, Pro Comp ES9000 shocks
Can someone confirm which PCV valve I should be using for my AMC 258 i6 / 4.2l engine? I've currently got a single outlet valve (Pic 1), but Summit recommends this dual outlet valve (Pic 2). If I should be using the dual outlet valve, then where does the second outlet go to?

Thanks!

31TBTGWBS4L.webp

4392.webp
 
The single out let is correct for your year Jeep.
My '85 uses the twin outlet.
Just go to NAPA and get it.....
LG
 
79-6cyl_vacuum.webp


This shows a "T" PCV valve, one side of the "T" goes to the base of the carburetor, the other side goes to the charcoal canister.

Now, with you running throttle body injection, I have no idea how that effects this set-up.
 
Thanks guys for answering my question. Very much appreciated! :)
 

Jeep-CJ Donation Drive

Help support Jeep-CJ.com by making a contribution.

Help support Jeep-CJ.com by making a contribution.
Goal
$200.00
Earned
$0.00
This donation drive ends in
0 hours, 0 minutes, 0 seconds
  0.0%
Back
Top Bottom