heating hose diagram?

1992 CHEVROLET S-10
100,000 MILES
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JOHNRUTHIE49
  • MEMBER
  • 1 POST
under dash diagram for heating hose
Feb 21, 2026 at 12:25 AM
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STEVE W.
  • ✓Experienced Mechanic
  • 15,387 POSTS
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 3:22 AM
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