The extra heater valve does nothing as long as you have a correctly working stock valve. The stock valve can be opened or closed at will from the front seats while under way. Mark Michael Diehr wrote: > Re: hot-foot mods to avoid heat seepage through the body on hot days > > I've seen described: > * extra valve to fully shut off the front heater water > * pipe insulation on the coolant pipes under the van > * insulating material on the sheet metal downwind from the radiator > (either inside or outside) > or above the automatic transmission > > Any advice on which is the best benefit/cost ratio? > > |
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