<<Hmm, if the spring clamp is coming off, I suspect you have too much pressure in that part of the system.>> And what would cause that to happen Kim, in this area of the engine? Nothing that I can think of either. But, if the whole system was being restricted by some sort partial blockage it would cause pressure to be built up throughout, hence the failure. I would suspect something is plugged slowing the input flow to the radiator, and causing backed up pressure to the rest of the system. Let's ask this question of the poster; "When was the last time the system was chemically and pressure flushed, how often do you change the coolant, and how many miles on the Van?" This all would be a good indication of whats going on.
<<I hate the "regular" clamps. They tend to cut into the hoses (I just got a leak from one of them)>> You haven't seen or used the silicone hose double wrap aircraft screw clamps. The outside tightens up as a conventional screw clamp does, the inside band of the clamp stays stationary to eliminate pinching or tearing. A superior clamp than the standard stainless hose clamps your familiar with, and better clamp than even the spring loaded clamps. |
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