Express 3/4 Ton Van V8-4.8L VIN V (2003)
Electronic Brake Control Module: Customer Interest
Brakes - Thumping Noise/Feel in Brake Pedal
File In Section: 05 - Brakes
Bulletin No.: 03-05-25-001
Date: January, 2003
TECHNICAL
Subject:
Thumping Noise/Feel in Brake Pedal
(Replace Electronic Brake Control Module)
Models:
2003 Chevrolet Express 1500/2500 Series Heavy Duty Cargo Vans
2003 GMC Savana 150012500 Series Heavy Duty Cargo Vans
with GVW of 8600 - 11000 lbs
Condition
Some customers may comment about a thumping noise/feel in the brake pedal after the vehicle comes to a complete stop. This is most likely to occur
after a hard, non-ABS, dry pavement stop.
Important:
The above condition may also occur, to a much lesser extent, on all lighter GVW vans. This will NOT occur on Cut-away/Cab-Chassis/Cube/RV
vans.
Correction
Replace the electronic brake control module. Refer to the Electronic Brake Control Module (EBCM) Replacement procedure in the ABS/Traction
Control sub-section of the Service Manual (SI Document ID # 893022). Use the new part numbers listed below.
Parts Information
Parts are expected to be available from GMSPO on January 24, 2003.
Warranty Information
For vehicles repaired under warranty, use the table.
