Leaking valve covers on 4.0 L - Ford Truck Enthusiasts Forums

Leaking valve covers on 4.0 L

Thread Tools Search this Thread
Old 11-03-2004, 11:22 PM
hrdrckgld hrdrckgld is offline
Freshman User
Thread Starter
Join Date: Jul 2004
Location: San Juan Capistrano, CA
Posts: 30
hrdrckgld is starting off with a positive reputation.
Question Leaking valve covers on 4.0 L

I have a 93 EB, 4.0L extended Aerostar. It was a one owner with 133,000 miles on it when I bought it. The heads had been replaced at about 90,000 Mi. The valve covers are leaking a small amount of oil and of course it smells bad. This is a fairly expensive job, close to 5 hundred dollars here in CA, as I have to have a shop do it. I have reached an age that really has slowed my ability to do my own repairs. I have replaced the PCV as it was partly plugged, and this helped for a while, I retorqed the cover bolts that I could reach at the same time. I love my star and this is my second one. I wonder if anyone has gone through this before. What are the best gaskets? Are there better aftermarket valve covers avail. or maybe a girdle of some type to spread out the presure? Someday I will probably rebuild the engine, but as of now it does not burn any oil and runs great, so am looking foreward to 200,000 or so before major work. I hope to have this gasket replacement last until the rebuild. Any sugestions would be appreciated! I see so many good answers here.
Reply With Quote
Old 11-04-2004, 12:54 AM
rangerboy21's Avatar
rangerboy21 rangerboy21 is offline
Junior User
Join Date: Sep 2004
Location: Cloverdale, IN
Posts: 66
rangerboy21 is starting off with a positive reputation.
I have a 93 Ranger with the 4.0L and just recently I had to replace the valve covers due to rust eating a couple of pinholes in the drivers side cover and the passenger side cover was about to do the same. The only place that I could find them was at the dealership for a cool $150.($100 for the right side, $50 for the left side) For valve cover gaskets(about $30 which includes upper and lower intake manifold gaskets), I went with the Fel-Pro Permadry Plus from autozone. No RTV silicone required and they were easy to install. Now 10,000 miles later, no leaks! I also used the same gaskets on my 2.9L I just rebuilt. I've put about 1,000 on it and no leaks.

If your using the same valve covers, make sure the surface that contacts the gasket is straight and flat.
Reply With Quote
Old 11-06-2004, 01:53 PM
Rockledge's Avatar
Rockledge Rockledge is offline
Post Fiend
Join Date: Jan 2003
Location: Connecticut
Posts: 9,687
Rockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to beholdRockledge is a splendid one to behold
Go with rangerboy's recommendation, the Fel-Pro Perma Dry Plus valve cover gaskets. They are specially made ("hinged carrier" design) for the Ford 2.9L and 4.0L.
Reply With Quote
Old 11-19-2004, 09:46 PM
grease monkey's Avatar
grease monkey grease monkey is offline
Elder User
Join Date: Oct 2004
Location: Omaha
Posts: 759
grease monkey is starting off with a positive reputation.
Fel pro makes a good gasket. Make sure they are not over tightened because that can cause leaks all over again.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
High EOT's AFTER repairs. 06FUN 6.0L Power Stroke Diesel 115 10-29-2016 08:53 AM
Can not build base oil pressure? bstidham 6.0L Power Stroke Diesel 22 10-04-2015 04:20 AM
Dual Battery Disconnect bismic 6.0L Power Stroke Diesel 8 04-09-2015 01:47 AM
30 lb compression rrumba 1997-2006 Expedition & Navigator 8 04-05-2009 12:40 PM
Ford 5.4 liter codes 171 & 174 THEN 401 & 171 Lugnut2008 Modular V8 (4.6L, 5.4L) 5 11-09-2007 02:57 PM

Go Back   Ford Truck Enthusiasts Forums > >

29l, 40, 40l, 4o, 94, cover, covers, ford, gaskets, leaking, left, ranger, rtv, rust, v6, valve, vave

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

Forum Jump

All times are GMT -5. The time now is 08:30 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.