PIT4505F

Bulletin No.: PIT4505F
Date: Nov-2012
Subject:
Rattle Buzz Tick Noise From Front Of Dash (Adjust Transmission Filler Tube)
Models:
2007-2013 Cadillac Escalade Models
2007-2013 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2007-2013 GMC Sierra, Yukon Models
This PI was superseded to update model years. Please discard PIT4505E.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
Some customers may comment on a rattle, buzz, tick, or vibration type noise that appears to be coming from the center of the dash. Root cause may be the
transmission dipstick tube contacting the front of dash (cowl). If the transmission dipstick tube is too far rearward, it will contact the front of dash and vibrate,
buzz, etc. causing the noise to sound like it is inside the dash area.
Recommendation/Instructions
To correct this concern adjust/bend the transmission dipstick tube away from the front of dash/cowl to provide additional clearance. When inspecting or
adjusting the transmission dipstick tube it may appear to have enough clearance with the vehicle stopped. Verify that there is enough clearance to allow for
powertrain movement during acceleration and deceleration. Inspect for contact while shifting between drive and reverse.
Note: If the dipstick tube is found to be broken or cracked on trucks equipped with the 6-speed 6L80 (RPO MYC) Automatic Transmissions, please reference
the latest version of PI0522 for repair information.
Warranty Information
For vehicles repaired under warranty use:
Labor Operation
Description
Labor Time
K9565*
Adjust Transmission Dipstick Tube
0.2
* This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the
remaining steps do not need to be performed.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may
occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that
your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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