2000 Dodge Durango water heats/ leaks trough upper cap betw

Tiny
HKTR
  • MEMBER
  • 2000 DODGE DURANGO
  • V8
  • 4WD
  • AUTOMATIC
  • 85,000 MILES
Hi
In a Dodge Durango,
on working temperature, water leaks (steams) out of joint between two hoses and water cap, hoses feel very hot and it suck water from the separate reservoir, temperature indicator maintains at normal condition and fans work normally, replaced the whole assembly once, but got same results.


http://www.2carpros.com/forum/automotive_pictures/135516_IMAG0072_1.jpg

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Friday, December 28th, 2007 AT 12:16 PM

3 Replies

Tiny
OLDTECH2
  • MEMBER
Couldn't see a clear leak or crack in the housing.

You have an either/or situation on this. Either the hoses are leaking past the clamps, the radiator cap upper seal is bad, or the housing is cracked.

I doubt that the housing is cracked.

The trails look to come from up high on the housing, so I'd think in terms of a radiator cap upper seal. By this, I mean the seal between the cap and the housing top lip, not the small seal at the bottom.

The other option is that the heat shrink clamps are a little loose.

Steam is hard to track, but the trails in the picture sure look like a bad cap to me.
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Saturday, December 29th, 2007 AT 6:06 PM
Tiny
HKTR
  • MEMBER
Oldtech2, thanks for answer,
I've been checking and looks like the idea of heat shrink clamps is the one that's going bad here, water comes out trough the joints of hoses and housing, I changed that full hose-housing assembly once because of same problem, it lasted about 4 months and looks same, is this normal? Is there a way to fix without changing the whole stuff, first time I added metal-screw clamps, but I broke the housing. Now I changed the CAP anyway, but really water is coming out of those joints. TKS
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Friday, January 11th, 2008 AT 9:30 PM
Tiny
OLDTECH2
  • MEMBER
Take a good hot hair drier or a heat gun and heat the clamps up. Heat them as evenly as possible and they should shrink down a little more and seal off your leak.

My Durango started this on a much smaller scale and I managed to seal it by heating the clamps with my heat gun.
I've also had to replace the radiator cap due to the upper seal failing.

Another option would be to install constant torque hose clamps. They screw down like normal ones so be careful on the torque, but they don't loosen up over time.

I'd try the heat deal first though.

Good luck!
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Saturday, January 12th, 2008 AT 7:27 PM

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