02-14-2008, 02:41 AM
Hey all I seem to have a mysterous oil leak. It is quite a big leak underneath the truck. I think the culprit is the oil cooler. What is in need of fixing it? Are there some types of gaskets, or orings to change? Thanks for the help. Also it seems to only do it when it is really cold outside.
02-15-2008, 03:00 AM
wheres it comin from? drivers side, pass side, rear of engine?
02-15-2008, 01:35 PM
Reuben, there is a seal/o ring kit you can get for the oil cooler. I would wipe any wet areas off and try to see where it comes from. It is kind of weird that it only does it when its cold.
02-17-2008, 07:16 PM
I found the problem this weekend. It is the dipstick holder that goes into the side of the oil pan. It is loose and I noticed an gasket of some sort. Can I tighten it up by turning the nut or what?? Thanks guys.
02-17-2008, 07:25 PM
yea i did on mine. I actually had the nut back all the way off. I just cleaned it really good an put a small bead of rtv around it as well for some piece of mind.
02-17-2008, 08:23 PM
So should I just tighten it or should I take it apart and clean it?
02-17-2008, 09:00 PM
I would just tighten it. If you take the nut completely off you run the risk of the inner half falling into the pan. I was dam lucky that mine didnt fall in as I was driving when the nut backed out and came off.
02-18-2008, 09:43 PM
Problem solved! I tightened the nut, and it doesn't seem to leak anymore. Thanks!!
02-18-2008, 10:23 PM
When mine happened similarly, the tightening only solved it for a month or so. I think I pinched the O-ring when re-tightening it. When it started leaking again, I pulled the dipstick tube, then clamped a pair of needle-nose vice grips onto the pan bung (to keep it from falling into the pan), then removed the nut. The O-ring was in 3 pieces (only 1 of which I retrieved). I replaced the O-ring and lived happily ever after. At least until my oil cooler started leaking, but that is another story...
02-18-2008, 11:02 PM
Great! I guess I get to look forward to doing this in about a month then!! Thanks for the heads up though, something I will have to keep checking on.
02-19-2008, 02:23 AM
International has a repair kit for the fitting as well:
Dipstick Mount Seal Repair Kit with instructions 1846146c91
(silicone, loctite gasket eliminator, adapter gasket, dipstick O-ring)
02-19-2008, 06:35 PM
IIRC, they wanted a pretty steep price for the full kit, but the O-rings by themselves were pretty cheap:
Dipstick Tube O-Ring (International) 875519C1; Adapter O-ring 21490R1
02-19-2008, 09:49 PM
Thanks for the part numbers!!