2007 Explorer 4.0 upper and lower intake gaskets.

[ls1mike]

Has anyone on here ever had to do it? I have a buddy whose car needs them. Looks involved but I think I can do it.

 

[bdcardinal]

It is pretty easy. There is only one set of gaskets, 6 o-rings, on the intake. While you have it off, take a real good look at the thermostat housing, they leak all the time on the 4.0L SOHC engines.

 

[bdcardinal]

Here are pictures from the FSM of the intake gaskets and another one showing everything connected to the intake, hope it helps.

 

[01rangerxl]

Nice diagrams. I wish GM showed that much detail.

 

[bdcardinal]

That is in the shop manual, the parts pictures were drawn by a Kindergarten class full of sugar.

 

[punisher]

Boy, that intake has changed since I did those on the 4.0 SOHCs in the 90s.

 

[ls1mike]

Thanks BD!

Do you know if the valve covers have to come off to get the lower intake off?

 

[ls1mike]

Also I don't see an aftermarket lower intake gasket.

 

[bdcardinal]

There is no lower intake. Those o-rings go directly to the ports on the head.

 

[ls1mike]

Holy cow I was looking at it wrong!! That makes it super easy. I thought it was like my Grand Prix or Regal. Upper and lower.

So the leak is from the thermostat housing...Easy Peasy. I am going to scan for codes and make sure the intake isn't leaking.

I owe you one man! Thanks!

Dry intake...I like.

 

[bdcardinal]

With that vintage, I would replace the intake o-rings if you are taking it off anyway.

If you do the thermostat housing, replace everything, it is a plastic housing and as soon as you start to take it apart the parts will be warped. I have had customer try to cheap out and just do the seals and they are coming back a couple days later for the housings.

 

[ls1mike]

Well I wasn't going to pull it but I think it has a leak, so I may.

Is the complete Dorman unit any good? I can get a brand new one with what they call "updates" for 67 bucks. Comes with everything but the temp sensor.

 

[exranger06]

I recommend the aftermarket housing that's all cast aluminum. It's way more expensive than a plastic housing, but you'll only buy it once, whereas you'll likely have to buy the plastic one more than once. Then again, it's not your vehicle...

 

[bdcardinal]

I'm sure the Dorman one are probably ok, but we have thrown away a few recently installed ones. From ford the seal on the temp sensor is not officially available by itself. There is an A/C o-ring 1W1Z-19E889-BB that will work in a pinch.