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Most likely a valve cover gasket, they leak when they get old. The upper intake manifold has to come off to get to it. Same problem on the Sport Trac I just traded in.He was a retired mechanic. Although he let the appearance lapse, he still kept up with it mechanically. He had one of his younger mechanics continue to work on it. He was watching a top end oil leak, and decided to just watch it, since he was only driving like 20 miles a day. I’m having his mechanic fix that oil leak and give it a look over, before I drive it 700 miles back to Virginia.
My buddy got this incoming 2004 Ranger 4x4 project with a couple of leaks. It's even got some rust build-up but only has 97k miles. We'll just finish installing the winch and bumper plus the smittybilt tailgate on the Wrangler this week before we can clear the garage and take a closer look.Most likely a valve cover gasket, they leak when they get old. The upper intake manifold has to come off to get to it. Same problem on the Sport Trac I just traded in.