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What is your question?
All under hood components OK, good flow thru heater core. Suspect blend air door. Sounds & feels like it is operating but cannot get into it to check.Vacuum to heat control OK. Fan running OK. Only get small amount of heat to interior.
1 Reply
move selector switch from hot to cold and listen inside the vents for a change in fan sound. If nothing changes the blend door or door motor is a great place to start.