PI0522D

File in Section:
Service Bulletin
Bulletin No.:
Date:
PI0522D
March, 2013
PRELIMINARY INFORMATION
Subject:
Tick, Buzz or Rattle Noise from Front of Dash, Transmission Filler Tube Cracked or
Broken
Models:
2007-2013 Cadillac Escalade Models (excluding Hybrids)
2007-2013 Chevrolet Avalanche, Silverado, Suburban, Tahoe (excluding Hybrids)
2007-2013 GMC Sierra, Yukon Models (excluding Hybrids)
This PI is being revised to add model years, update the Condition/Concern,
Recommendation/Instructions and Warranty Information. This PI replaces PIT4505F. Please
discard PIT4505F and PI0522C.
Condition/Concern (For Vehicles Equipped with 6-Speed Transmission RPO MYC)
Some customers may comment on a tick or rattle noise that appears to be coming from the right hand, front of dash
area. Upon further investigation the transmission filler tube may be found to be cracked or broken.
This condition may be caused by a resonance condition of the filler tube during certain driving conditions.
If the filler tube is not cracked or broken, the noise may be caused by contact between the filler tube and the front of
dash area.
Condition/Concern (All Other Transmissions)
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 (For Vehicles Equipped with 6-Speed Transmission
RPO MYC)
Inspect the transmission dipstick tube for any fractures and replace it if necessary. If no fracture is found, technicians
should install a foam sleeve around the tube to absorb the vibration and 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.
If the transmission filler tube is found to be cracked or broken, it should be replaced with a revised filler tube. This
filler tube incorporates a foam damper near the top that prevents resonance related damage.
1. Open the hood.
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2. Remove the dipstick from the transmission filler tube.
Note: If required, use a step to aid in grasping the transmission filler tube correctly.
3. Grasp the transmission filler tube with your thumb and first two fingers of your right hand. Your thumb should be
on the passenger side of the transmission filler tube and parallel to the filler tube.
4. Using only your thumb and the first two fingers of your right hand, force the transmission filler tube toward the
driver's seating position and then back to the passenger's front wheel two times.
5. Determine if the transmission filler tube is damaged. An undamaged transmission filler tube will move less than
two inches and spring back to its original position, while a damaged transmission filler tube will move greater
than two inches and will not spring back to its original position. A damaged transmission filler tube will likely
crack during this inspection.
• If the transmission filler tube is not damaged, proceed to Step 6.
• If the transmission filler tube is damaged, replace the transmission filler tube. Refer to Transmission Fluid
Filler Tube and Seal Replacement in SI.
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Note: The tie strap threads between the fill tube and half the foam damper using the slot in the sleeve. This is
secured to the top half of the tube, leaving the lower half of the damper free.
6. Install a foam damper (sleeve) on the upper end of the transmission filler tube using a tie strap. Refer to the
illustration.
7. Install the transmission dipstick.
8. Close the hood.
Important: It is recommended that a foam damper sleeve be installed, if not already in place, any time the
transmission is removed from the vehicle for any reason.
Important: Do not alter or reduce the length of the fill tube. By design, the fill tube extends into the transmission pan
to stabilize the oil level indicator and provide an accurate oil level reading. If the tube is shortened, the oil level
reading may not be accurate causing an under fill or over fill condition and resultant damage to the transmission.
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Important: The foam attached to the upper end of the tube is the damper. Do not mistake this foam for packaging
material. Do not remove this foam from the tube.
Recommendation/Instructions (All Other Transmissions)
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.
Parts Information
Part
Number
Description
Qty
24260606
TUBE, TRANS FLUID FILL
1
24262134
SLEEVE, TRANS FLUID
FILLER TUBE
1
Warranty Information
For vehicles repaired under the U.S. (5 years/100,000 miles or Canadian (5 years/160,000 km) Powertrain
Warranty, use:
For Cadillacs repaired under the U.S. (6 years/70,000 miles or Canadian (6 years/110,000 km) Powertrain
Warranty, use:
Labor
Operation
Description
Labor
Time
K9565*
Adjust Transmission Dipstick
Tube and/or Install
Transmission Fluid Filler Tube
Sleeve
0.2 hr
Add
Replace Transmission Filler
Tube (6-Speed
Transmissions Only)
0.5 hr
*This is a unique labor operation for bulletin use only. It will
not be published in the Labor Time Guide.