On the road, explorer overheat

[ab_slack]

Currently traveling and about a thousand miles from home.
2002 Explorer 4.6L V8, got sudden hissing sound, sure enough coolant spraying out someplace int the back of the engine.

A quick look and I couldn't find source. Let it cool, put 3 gallons of water in and drover it the few miles back to my room.

CEL came on with P1035 and 1055 codes, both were heater circuit faults as I recall.

Any idea's what the likely hoses are that is leaking? Or something else, non-hose? Closest I could locate was someplace on the passenger side rear of engine.

The hoses too/from the heater control valve seem to be okay..at least in the area of the valve, not sure how far back the one goes.

 

[alwaysFlOoReD]

Can you get a mirror in there? I'm not sure about the 4.6 but every motor I've ever worked on has frost plugs in the head. I had a 4.0 and a 2.9 that had a pinhole leak from a rusted out frost plug in the head. If that's the problem you can get one of those rubber expandable plugs into the area then punching the plug in and using the rubber plug in it's place should get you home. Buy more than one in case the first one blows out because of shoddy install....don't ask how I know. Also carry some extra water.
Sorry, I don't know the size you need.

Good luck.

 

[ab_slack]

Tracked it down, a simple stupid, wasn't even related to a hose.

This engine has an after-marken intake manifold. A water passage at in the manifold towards the rear of the engine has an unused vertical port which has a rubber cap and a single loop spring clamp. The rubber cracked under the clamp. The crack faced the rear and sprayed the hoses there. Thus those hoses seemed to be where the coolant was leaking from but it was this cap which didn't even look associated with any coolant passages.

Since it wasn't a factory item, and I didn't know it wasn't factory, ford and parts places had no idea what it was. Eventually found someone's comment that said go to the aftermarket section and buy a plug. Found one, seemed like an exact match. $5 later for cap and hose clamp plus 5 minutes and it was fixed. That is after 30 minutes to pin down the leak and 2 hours trying to find out what the part was.

 

[Doofy]

Good job! Persistence is the key! Never give up!