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Owns A Torsen
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the 97.5-01 Explorer 5.0 has an EGR tube on top of the passenger side header, this is the exhaust gas sample tube for the EGR system. On the 96-97.5 engines the plumbing for the EGR is inside the lower and upper intake manifolds
This is a quick and easy way to see what heads the engine has. GT40 = no egr pipe (96-97.5), GT40p = EGR pipe (97.5-01)
OK I might have to mildly contest this and add something unless I'm seeing it wrong. I have a 97 5.0, was a tweener possibly right on the cusp. I am sure they are GT40 non P heads, 3 stripes, more severe spark plug angle. There was a EGR tube from the exhaust manifold to the back of the intake manifold, I made my own block off for both locations. Perhaps this is the setup and the passage is between the upper and lower intakes (I have never had them apart). On the P head variation where does this tube go to that is from the exhaust manifold?
The way I read your post was that there is no tube on the older ones and the EGR exists only between the upper and lower intake (which is a really bad idea BTW).
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