Wiring diagram for blower motor and components needed?

Tiny
YETIINYERANTS
  • MEMBER
  • 1991 CHEVROLET VAN
  • 5.7L
  • V6
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
About to do an overhaul of HVAC and coolant system. Cannot find wiring diagram for blower motor or shop blow-ups of the HVAC and coolant systems. I understand it's not overly complicated in these old g20s, just hard to access. I just want the drawings in front of me when I tear into this, so I have a reference.
Monday, January 27th, 2025 AT 4:45 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Yep, this is a pretty easy system, here is the wiring diagram for the blower motor and resistor. Check out the images (below). Let us know if you need anything else.
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Monday, January 27th, 2025 AT 11:19 AM

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