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HOMESERVICE MANUALSCHEVROLET1996CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 4.3 WREPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSHEATER SYSTEMTROUBLE SHOOTINGAUXILIARY BLOWER MOTOR DOES NOT OPERATE IN LOW SPEED
1996 Chevrolet Chevy Express G3500, Van Passenger Extended, 4.3 W

Auxiliary Blower Motor Does Not Operate In Low Speed

1996 Chevrolet Chevy Express G3500, Van Passenger Extended, 4.3 WSECTION Auxiliary Blower Motor Does Not Operate In Low Speed
  1. Turn ignition switch to RUN position. Connect fused jumper from Yellow wire at rear blower motor connector to ground. If blower motor runs, go to next step. If blower motor does not run, replace blower resistor.
  2. Set rear blower switch to LOW speed position. Connect fused jumper from Yellow wire at rear blower switch connector to ground. If rear blower motor runs, go to next step. If rear blower motor does not run, repair open Yellow wire between rear blower motor and rear blower switch.
  3. Check continuity of Black wire between rear blower switch connector and ground. If continuity exists, replace rear blower switch. If continuity does not exist, repair open Black wire between rear blower switch and ground.
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.