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  1. S

    EGR tube on 4.6

    I ordered one from Ford. Due to my affiliation with local shops I got it for $90, but $70 would have been better. I'll bolt it onto the new motor when it gets here Thursday.
  2. S

    EGR tube on 4.6

    Did you find one other than from Ford?
  3. S

    2003 Explorer 4.6L Coolant in Oil

    Problem Found Problem found and it's not good. There is a crack 2"+ long in the casting above the crankshaft in the vent passage below the valley. It's in the left side of the engine between the center two cylinders, parallel to the crankshaft axis. Engine block is junk. Time for a new engine...
  4. S

    2003 Explorer 4.6L Coolant in Oil

    I pulled the engine and removed the pan, etc. I pressurized the cooling system on the stand and the water drips out of the air passage above the crank and below the valley. I cant really see up in there to determine the source though. Still looking. Might have to borrow a bore scope to get a...
  5. S

    2003 Explorer 4.6L Coolant in Oil

    No oil cooler.
  6. S

    2003 Explorer 4.6L Coolant in Oil

    Chapter two of this saga begins...Previous Thread Here Earlier in the year I was loosing coolant into the oil. The engine was removed, top end disassembled, heads pressure checked and head gaskets replaced. I also did the timing chain and guides while it was apart. After re-assembly, it...
  7. S

    2003 Explorer 4.6L Coolant Loss

    You'll have to take it apart and look, but chances are the plastic is cracked and a gasket wont be enough since the underlying part is damaged. My repair with ABS epoxy and Right Stuff is holding up thus far. My original issue was actually a head gasket though and this was discovered in the...
  8. S

    2003 Explorer 4.6L Coolant Loss

    Depending on the type of stop leak used, it may or may not have been related. Hard to say. No codes at all. The only time its ever had one is when the overdrive planetary shelled out, and that was pretty obvious why ;) Its had a hesitation under heavy acceleration for a long time, and still...
  9. S

    2003 Explorer 4.6L Coolant Loss

    Thanks for the inquiry. Got caught up in other things and neglected this thread. I took the engine out of the vehicle and pulled the top end off. I also inspected the bottom end (bearings etc) due to coolant intrusion but it looked very good. Apparently the newer aluminum bearings and/or...
  10. S

    2003 Explorer 4.6L Coolant Loss

    No, the two are coincidental but exclusive. The manifold was leaking externally, but not enough to be evident. It was evaporating as fast as it came out. The intake can't leak into the crankcase on this engine. The two aren't connected (well, other than the vent system I suppose, but not very...
  11. S

    2003 Explorer 4.6L Coolant Loss

    I pulled it out and looked it over, it wasn't that much more work to get it out on a stand and it's much easier to work on than over the fenders :) Definitely a head gasket leaking. I inspected two rod bearings and both looked like new. Apparently the newer aluminum bearings hold up to...
  12. S

    2003 Explorer 4.6L Coolant Loss

    I know there have been a couple of threads on the subject but wanted to add my experiences so far with this issue. I have 20+ years exp wrenching everything from cars to aircraft to combines, but this is my first foray into the 4.6L. I started losing coolant a while ago, slowly at first then...
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