Quote:
Originally Posted by Ultramaroon
It's as good a place as any. Collapsed hose is interesting. If you're not losing coolant, and a hose is really collapsing, I would guess that something is keeping the fluid from returning to the system as it cools. A clogged reservoir hose? Stuck return valve or whatever it's called? I'm talking about the little one in the middle of the cap. It should open really easily, and is usually the one that leaks in the first place.
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I have yet to notice the collapse hose (mechanic didn't specify which one) but did observed the top coolant hose as not being completely full. On the other hand, the return valve spring seemed OK. Although I haven't inspected all hoses thoroughly, I did inspect coolant level (same as last night after refilling it until it cooled with cap open) and the original radiator cap, where I found one of the top (wider/bigger) seals was ripped in a few spots (refer to attached pics).
Ordered the radiator cap but bought a TVS unit/Autozone: new one doesn't go as deep as the original one into radiator. Nevertheless, I put it in.
PS Parts shop mentioned that our cars have two (2) thermostats or flow control valves, but I can only locate one. Apparently auto trans cars have two (2) thermostats.
https://www.oemgenuineparts.com/v-20...and-components