Squeak/Creak/Squawk/Itch Type Noise Heard From The I/P or Center Console Area – 2019-2021 Chevrolet Silverado & GMC Sierra 1500

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Bulletin No.: PIT5666C Published date: 06/10/2021 Preliminary Information PIT5666C Squeak/Creak/Squawk/Itch Type Noise Heard From The I/P or Center Console Area Models Brand: Chevrolet Chevrolet GMC GMC Model: Silverado 1500 (New Model) Silverado 1500) Sierra 1500 (New Model) Sierra 1500 Model Years: 2019 2020 – 2021 2019 2020 – 2021 VIN: from to All All All All All All All All Engine: All All All All Transmissions: All All All All Involved Region or Country North America Condition Note: The Labor Code in this PI should not be used if it wasn’t the root cause of the customer’s complaint. Some customers may comment of a squeak, creak, itch, or rubber type noise heard from the IP dash or center console area. The noise may be duplicated by the following: – Driving over bumps (noise may go away if coasting or if transmission is shifted into “N”) – During acceleration – Brake torqueing in drive (noise may not occur when brake torqueing in reverse) Cause This noise could be caused by the engine harness rubbing on the floor pan above the transmission (item numbers 4 and 5), as shown below. The photos below were taken from under the vehicle looking up along the driver’s side of the transmission bell housing. Callout 1 – Bank 1 Sensor 1 O2 sensor Callout 2 – Bank 1 Catalytic Converter Callout 3 – Front Driveshaft (on 4WD vehicles) Callout 4 – Engine Harness rubbing on floor pan Callout 5 – Engine Harness pushed aside to show the contact on the floor pan Correction: Reposition and secure the engine harness down beside the fuel/evap lines so it no longer contacts the floor pan, as shown below. The rear transmission crossmember may need to be removed so that the transmission can be slightly lowered to gain access to the area. To allow enough slack in the engine harness to reposition it down beside the fuel/evap lines, it needs to be moved/repositioned forward in the clips at the rear of the harness above the rear of the transmission/transfer case. First, release the rear harness clips and move/reposition the harness forward in the clips, then lock the clips closed. This will create enough slack in the harness to reposition and secure the harness down beside the fuel/evap lines, as shown below. Note: Improvements were made for the 2021 model year to correct this condition. If this condition is found on a 2021 Model year vehicle, please submit a Field Product Report with photos per bulletin 02-00-89-002T. Warranty Information For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. Note: The Labor Code in this PI should not be used if it wasn’t the root cause of the customer’s complaint. Improvements were made to the 2021 model year which corrected this condition. If this Labor Code is used on a 2021 Model year vehicle please submit a Field Product Report with photos per bulletin 02-00-89-002T. Labor Operation Description Labor Time Reposition Engine Harness Above 5480648* Transmission includes test driving and R&R Transmission Crossmember *This is a unique Labor Operation for Bulletin use only. 1.0 Hrs. Additional SI Keywords creek Version History Version 4 03/15/2019 – Created on 08/17/2020 – Updated to add the 2020 model year. Modified 04/12/2021- Updated to add the 2021 model year and a Note in Condition and Warranty Sections. 06/10/2021 – Updates to the Correction and Warranty sections.
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