Yukon Denali AWD V8-6.2L (2007)
Disclaimer
Technical Service Bulletin # 06-08-64-029
Date: 060811
A/C - Whistle Noise With Blower On High
Bulletin No.: 06-08-64-029
Date: August 11, 2006
TECHNICAL
Subject:
Whistle Noise Heard With HVAC Blower On High (Install Foam Strip in Door Handle)
Models:
2007 Cadillac Escalade Models
2007 Chevrolet Avalanche, Suburban, Tahoe
2007 GMC Yukon Models
Condition
Some customers may comment on a whistle noise heard when the HVAC blower is on high speeds.
Cause
When the HVAC is on high speed, an increase in cabin pressure causes air to rush through the outside door handles.
Correction
Install a foam strip in the door handle.
1.
Remove the door handle. Refer to Front Side Door Outside Handle Replacement in SI.
2.
Cut a piece of foam 13 mm (1/2 in) in thickness by 19 mm (3/4 in) long by 19 mm (3/4 in) wide.
3.
Lift up the handle gasket in the area of the locator pin.
4.
Place the foam over the locator pin and push the locator pin through the foam as seen in the illustration above.
5.
Install the handle gasket.
