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  #25  
Old 04-04-2011, 09:37 AM
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Re: changed pcv valve

Isn't there a TSB or something out there about cleaning throttle body? I recall seeing it on www.wkjeeps.com.

I'm not so sure the throttle body should be serviced.

Yes...here it is: http://wkjeeps.com/wk_maintenance.htm#TBODY

Second row from bottom....
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Old 04-04-2011, 11:11 AM
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Re: changed pcv valve

The manual says the TB is not servicable, but even my Jeep dealer says they get very dirty in the 5.7 so they clean it (not usiing TB solvents) as part of the 60k tune service.
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  #27  
Old 04-04-2011, 11:53 AM
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Re: changed pcv valve

do it,i did mine,you can leave it on if its not to dirty just open the plate and look inside with a flashlight,use a little rubbing alcohol on a rag and wipe gently
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  #28  
Old 04-04-2011, 07:47 PM
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Re: changed pcv valve

Quote:
Originally Posted by kkuty View Post
Isn't there a TSB or something out there about cleaning throttle body? I recall seeing it on www.wkjeeps.com.

I'm not so sure the throttle body should be serviced.

Yes...here it is: http://wkjeeps.com/wk_maintenance.htm#TBODY

Second row from bottom....
In Chrysler parlance, not serviceable means there are no sub-assembly components that can be ordered. You must order the whole enchilada. That's how they buy it...that's how you buy it.

Because of the sensitivity of the throttle body, that is why I:
1. Did not disconnect electrical connection. It can generate a code or cause the dealer to use a StarScan to recognize it again;
2. Carefully wiped it with a soft cloth, wetted with a minimal amount of isopropyl alcohol. Gentle solvent and gentle cloth. Q-tips wetted with alcohol to get around the shaft penetrations. Do not be too abrasive or scratch the machine surfaces. Not too much alcohol.

You can remove the throttle body from the intake manifold and prop the butterfly open with a clean wooden paint stirrer cut down to about 5" long.

Takes a little longer that way, but no surprises when you start it up again. Have done mine twice now (and installed the oil catch can for future cleanliness).
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Old 04-11-2011, 10:07 AM
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Re: changed pcv valve

Did anyone notice a nice spike in fuel economy after the PCV valve was changed? I am trying to see if it's all in my head, or if I'm actually getting much better mileage. It's hard to know with my speedometer being off due to the larger than stock tires, but I could swear this is the best mileage my Jeep has ever seen. Does one have anything to do with the other?
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Old 04-11-2011, 10:42 AM
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Re: changed pcv valve

location of pcv valve of 2005 hemi?
im off tmrw, might as well do this and sea foam her up..
make sure its flawless.

thanks
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Old 04-11-2011, 11:08 AM
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Re: changed pcv valve

Remove the engine cover; follow the tubing from the valve cover on the passenger side which goes to the housing for the pcv valve near the firewall. To remove the valve, twist counter clockwise 1/4 turn. If it rattles when you shake it, it is fine and there is no need to replace it; clean it up and reinstall.
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Old 04-11-2011, 12:33 PM
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Re: changed pcv valve

Just did my 60k tune up. Very noticeable difference in acceleration. Very smooth and smooth idle also. My pcv was very dirty and so was tb. Suprisingly easy to do, I though the spark plugs would be a pain.
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Old 06-08-2011, 08:52 AM
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Re: changed pcv valve

does anyone have a writeup on how to change the PCV valve? i looked at where mine was (driver side almost against the firewall) and it looks to need either a large socket or an adjustable wrench... and on top of that there is big wire harness right in the way.

Anyone have an issue on their '08+ pcv?
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