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Coolant Leak from Rear'ish of Engine
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=87981		 Page 1 of 1
Author:  Jr_Explorer [ Wed Apr 04, 2018 11:54 pm ]
Post subject:  Coolant Leak from Rear'ish of Engine
We have no coolant in the oil. But after every trip we get maybe a 1/4 cup of coolant on the floor. Looking from below it's running down the rear of the engine (the oil filter is covered in dried coolant). With the front end up about 8" so I could get under it a little coolant was also dripping off the driver's side. We get low coolant message every 10-14 days depending on how much it is driven (which is about 150-200 miles tops).

So it COULD be a heater core hose, coolant tank leak, head gasket (please NOT a head gasket). Are there freeze plugs on this block on the rear of the block or high up on the passenger side? Any other ideas?
Author:  papaindigo [ Thu Apr 05, 2018 6:17 am ]
Post subject:  Re: Coolant Leak from Rear'ish of Engine
There was a post a while back about a leak seemed to be from a small freeze plug high on the rear of the engine but I don't have the link or remember what happened. It's more likely that your leak in associated with the EGR (cooler hoses, cooler, EGR). I'd suggest some UV dye in coolant; drive a day or 2; look for dye with UV light with vehicle in shade or garage. Very likely EGR hoses
Author:  WWDiesel [ Thu Apr 05, 2018 11:42 am ]
Post subject:  Re: Coolant Leak from Rear'ish of Engine
See this thread, lots of good info:
viewtopic.php?t=83341
It is very concerning that you are seeing it on the oil filter. I would think that any leak in the EGR cooler area (drivers side of engine) coolant would be dripping off of the starter area? :shock:

There is a single large coolant freeze plug on the rear center of the head, PN 05066836AA
Item no.4 on the parts diagram below.

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