2006 XC90 2.5L 5 Cylinder - Coolant leak Topic is solved

[cn90]

My wife's 2004 XC70 just had a split rubber coolant hose on the PCV Crankcase ventilation/coolant pipe(30731068). The rubber portion of this setup was replaceable, so I replaced just the rubber hose.

Just curious how many miles in your 2004 XC70 when the "rubber portion" of PN 30731068 split?
Also, exactly which rubber hose split?

[shiloh51933]

My wife's 2004 XC70 just had a split rubber coolant hose on the PCV Crankcase ventilation/coolant pipe(30731068). The rubber portion of this setup was replaceable, so I replaced just the rubber hose.

Just curious how many miles in your 2004 XC70 when the "rubber portion" of PN 30731068 split?
Also, exactly which rubber hose split?

225k

I'd need a diagram to point it out I actually ordered just the rubber from Gates. It's all the rubber coolant lines associated with that emmission/PVC system.
Its directly underneath the upper torque mount, its connected to the hard coolant line that has a banjo bolt into the side of the engine block. It's a 180° bend.

[xHeart]

Diagram showing coolant pipes and fittings behind the block -- water pump, turbo cooling, and thermostat.

[shiloh51933]

Diagram showing coolant pipes and fittings behind the block -- water pump, turbo cooling, and thermostat.

It's not in this diagram, its parts of that pcv pn # listed.

[rakesh4404]

Thanks everyone for sharing their knowledge.

Actually the leak was between the thermostat housing. The gasket in between the thermostat housing was leaking and I diagnosed it by renting a pressure test kit from Autozone for free.

I fixed it by following this YouTube video got just $7.

[rakesh4404]

Not a pretty work but never the less it resolve the coolant leak. Reference YouTube link above in my comment.

[shiloh51933]

My wife's 2004 XC70 just had a split rubber coolant hose on the PCV Crankcase ventilation/coolant pipe(30731068). The rubber portion of this setup was replaceable, so I replaced just the rubber hose.

Just curious how many miles in your 2004 XC70 when the "rubber portion" of PN 30731068 split?
Also, exactly which rubber hose split?

I placed a circle around hose in question. Location is under rear camshaft. You have to remove upper torque/motor mount, strut tower brace, turbo plumbing, intake plumbing, bunch of hareness brackets, harnesses, tubing, cam sensor, ect..

[Tinysauto2000]

This thread helped me. Same year and engine... same coolant leak. Currently fixing a lot of stuff on it. It been sitting for 2 years due to the coolant and a bad oil leak. I made a gasket the same way y’all did. Thanks.


06 XC90 2.5t fwd 116k miles

[rakesh4404]

That YouTube video was a life saver and this community is very helpful. Glad this thread helped you.

Give us more details on your engine oil leak we may be able to help.

I had a bad oil leak and looks like the connection from PCV to Engine block I used the clamp wrong side and it slipped. Undid the clamp and put that from opposite side resolved the issue.

[thomascushman]

Hello all. I am going through the same issue, I thought I had it fixed until I filled the system with water and and it leaked out the tube you all speak of... 3 hoses, aluminum pipe casing, runs under the forward intake manifold, Obvious leak once I used a mirror and some good cussing. So I bypassed the internal hose with some heater hose I had, cut the hose to the banjo block bolt, put everything together with proper bandaids ie., hose clamps, zipties, more cussing, etc., and put the car back together and then open the coolant reservoir and it all goes bye bye, right out the Tube again! Im baffled. I'm very sure I've done the bypass properly, so why is there coolant flowing in that tube again? I can put a bolt in there and plug it if I'm told that is the solution, I just don't compute how I don't need the water now in the old tube to be coming from somewhere important and how I don't need it to go somewhere else equally important?

Fortunately, I need the car to go to the inlaws tomorrow for the holidays. So im not feeling any pressure, and the other half isnt tapping her toe, ready to leave me in the car when she goes and trades it in...

So I'll be watching this, hoping anyone that knows, lets me know. So my world will be ok, ya know?