I installed a JLt oil separator in late 2011 on my 12' GT with about 1,000 miles. At the time, I couldn't determine any difference. In the mean time, I've maintained the catch can as recommended. I changed the oil at 30k and went to twist off the catch can for the purpose to empty it. In a hurry, I twisted off the can without removing the pcv connections (not recommended). I broke the male threads doing this. No fault to JLT, just my own. In the mean time, I had to install the original pcv unit until my new jlt arrives. What a difference! The car smokes on cold start ups and idle is rough and not remotely close to the smoothness of idle with the catch can installed. Get your catch cans and empty them properly. My new one should be here in a day or 2.

 

My car idles good and doesn't smoke and I don't have a catch can.

 

Yeah, same here. I really see no need to get one to be honest. I don't run boosted so octane lowering effect is not a concern for me.

 

Pretty sure your car should not be smoking with or without a catch can. Mine doesn't.

 

The car is also tuned with a 93 race tune since 1k as well. Maybe the difference?? Dunno

 

Umm, yeah. 75K here w/ zero smoke or idle problems, and no oil separators.

 

What color is the Smoke?

 

Idle sounds like a vacuum leak, did you make sure you hooked everything back up properly?

These engines are not direct injected, they are port injected. Catch Cans benefit direct injected engines a lot more than port injected and should not have an impact on idle or excessive amounts of smoke coming from the tailpipe. Fuel washes over the valves in these engines which helps prevent carbon build-up unless you are using a cheap brand of fuel with no detergent additives.

 

Slap on a 2013 f150 ecoboost pcv valve, costs 7$ and cuts down on oil consumption just as much as a catch can. Pull your stock pcv off. You can blow straight through it. Now try and blow through the ecoboost valve. You can't blow through it.

Its as simple as unscrewing your stock valve and screwing in the new one.

Part#BL3Z-6A666-AA

 

Part number?

 

Just updated my post with the part number

 

Isn't that the same PCV valve as the 3.7 V6 Mustang?

 

No clue. Its OEM for ecoboost f150

 

I just verified that PCV valve is also used on the 3.7 Mustang. If the 5.0 does not pull enough vacuum to open the valve .. then that is not a good thing either.

 

If its like the "old" PCV's on my F150, they are not drawn open by vacuum, they are gravity based and blown open by blow by.

 

I have a v6 and my early build JLT catch can (oil seperator) catches a good amount of oil. Just saying....

 

I was told by Shaun at AED to go this route. If he tells me this is what he recommends I do it.

He also said he had a leguna seca in the shop for excessive blow by and this fixed the issue.

Just saying...

 

I don't disagree with this fix but why do you think Ford did not change the PCV to this part from the factory it seems this would be an easy fix?

 

The 2015's and on come with the new PCV. They did make the fix...

 

That is correct