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International Automotive Technicians Network
1997 Chevrolet Blazer 4.3L Upper Mode Door for Defrost
Posted to GM HVAC on 2/19/2003 3 Replies

Hi all! The customer complaint is noise from the dash when changing modes from defrost to vent positions. A loud bang is heard. We can see the mode door struggle until the servo builds enough force to overcome the bind. We are trying to avoid taking the entire...

3 Replies Received (View Replies)

  Related Documents & Media  1997 Chevrolet Blazer

 
Message Closed w/FIX

car Vehicle Data

1997 Chevrolet Blazer

VIN 1GNDT13WXV
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedUpper Mode Door for Defrost
ConditionsBinds/Bangs Loudly When Changing Modes
Message Closed w/FIX

car Vehicle Data

1997 Chevrolet Blazer

VIN 1GNDT13WXV
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedUpper Mode Door for Defrost
ConditionsBinds/Bangs Loudly When Changing Modes