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Minor Coolant Leak - help ID this part?

DecredDave

New Member
Joined
September 10, 2018
Messages
1
Reaction score
0
Year, Model & Trim Level
1996 Explorer XLT 4.0
Howdy ya'll,

My 1996 Explorer 4.0 XLT has a minor coolant leak coming from the passenger side of the engine compartment. I have looked on numerous parts sites and diagrams and I can't find the part number/name where it's leaking from. I've searched through other coolant leak threads here on the forum as well as parts lists on multiple websites and random part diagrams that come up in an images search. The part in question appears to be a sensor or valve junction point with multiple coolant hoses coming into it. I believe the plastic body of the part is cracked and it's letting coolant out. It only leaks when the engine is running.

It would be awesome if you guys could help me ID the part and let me know of anything to be cautious of when replacing it (the only thing I can think of right now is introducing air into the coolant system, which I assume will work itself out eventually).

Here you can see the coolant leaking:
Inked20180907_183308_LI.jpg



From the front:
Inked20180910_143440_LI.jpg


From the side:
Inked20180910_143450_LI.jpg



Thanks!
 


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massacre

Elite Explorer
Joined
January 24, 2018
Messages
969
Reaction score
247
Year, Model & Trim Level
‘94 Explorer
‘19 Nautilus
Looks like heater control valve (that’s what I call it)

It flows hot coolant to the heater core for interior heat.
 




poker4me007

Elite Explorer
Joined
June 21, 2013
Messages
321
Reaction score
64
City, State
Western Ma.
Year, Model & Trim Level
97 Sport 4wd 4.0 ohv 5spd




koda2000

Explorer Addict
Joined
September 2, 2011
Messages
13,841
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1,477
Year, Model & Trim Level
x
Yep. Heater control valve. They leak when they go bad. Not an expensive part. It allows or prevents hot water from entering the heater core.
 




974X4BLACKSPORT

Well-Known Member
Joined
May 21, 2018
Messages
963
Reaction score
231
Location
FL
City, State
hudson
Year, Model & Trim Level
BLACK 1997 SPORT 4 BY 4
I went throught three of these in four years before I got the one with the lifetime warrnty. When you repplace it, be sure to keep the box and the recipt in case is faults (leaks) again.
 




Redmanss

Member
Joined
March 30, 2018
Messages
38
Reaction score
8
City, State
Wyoming
Year, Model & Trim Level
'97 Exp Sport 4WD 4.0 OHV
Mine was doing the same. I replaced it with a Motorcraft part since it's not much more at all to do so. Only six months in, but holding well thus far, hopefully I'll get another two decades out of it like the stock one.
 




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