Reply With QuoteTake upper hose off and see if you still have the ridge on the radiator that is supposed to prevent this from happening. I suspec the ridge is gone and your hose simply slides off under pressure.
Grand Master
I don't have the original cap.
The hose pops off because of the pressure building up in the upper hose.
I'm completely bamboozled at this point....
1994 540ia|Oxford Green Metallic|Lemforder|KYB in H&R|18" OE Staggered M-Parallel with Pirelli P-Zero
4 Grand Master
Take upper hose off and see if you still have the ridge on the radiator that is supposed to prevent this from happening. I suspec the ridge is gone and your hose simply slides off under pressure.
Grand Master
the radiator is fine... everything is in great shape.
nothing will keep the hose on because the pressure is great...
1994 540ia|Oxford Green Metallic|Lemforder|KYB in H&R|18" OE Staggered M-Parallel with Pirelli P-Zero
Green Beret Special Ops
I dissagree, if this is the case then all kinds of hoses would be popping off everywhere not just at 1 location.
Have you tried using a hose clamp on the thing?
Originally Posted by Evan
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
4 Grand Master
I still think the nub is broken off and that all he has is smooth shaft.
Big, Big Time Poster
I'm with Tiger and Regal on this one. Can you post a pic of the neck where the hose attaches to the radiator? And a pic of your hose clamp?
4 Grand Master
There are test kits available to detect exhaust gas in the coolant. Put a drop of something in a sample of coolant and see if it changes color sort of test.
If your pressure isn't accompanied by high temp then I'd start looking at a headgasket.
"The gas pedal wouldn't go to the floor if it weren't meant to be there"
2 Grand Master
Is there a way to check the system pressure via a screw on cap with a guage? Just thinking out loud.
Dave
10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
*RIP Oskar the DOG*
4 Grand Master
Yep, rad. pressure gauge
2 Grand Master
Sounds like the next thing I'd try.
10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
*RIP Oskar the DOG
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