heating hose diagram?

1992 CHEVROLET S-10
100,000 MILES
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JOHNRUTHIE49
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under dash diagram for heating hose
Feb 21, 2026 at 8:25 AM
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STEVE W.
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There are no heater hoses under the dash, did you mean the vacuum control lines for the HVAC system perhaps. Attached is a diagram for those as well as how the system operates.
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Feb 21, 2026 at 11:22 AM