Emissions - EVAP Charcoal Canister Buzzing Noise
ENGINEEG002-97
February 28, 1997
Title:
EVAP CHARCOAL CANISTER NOISE
Models:
'95-'96 Tacoma, '96 4Runner
Introduction
Some 1995 & 1996 Tacomas and 1996 4Runners may exhibit a slight "buzzing" noise, heard from the EVAP charcoal canister, when the engine is turned off after driving. To minimize this noise, the EVAP Canister Outlet Hose has been changed to incorporate a 50 cc air chamber.
Production Change Information
Warranty Information
Warranty Coverage:
CA & MA 3/50 Emissions Warranty, all others 3/36 Basic Warranty.
Repair Procedure
1. Hose Removal:
^ Remove original hose between "E" port and steel pipe (discard hose).
2. Canister Outlet No.1 Hose Installation.
(a) Peel and remove backing paper from mating surface of canister chamber as shown.
(b) Connect and secure the Canister Outlet No. 1 Hose to "E" port, then attach the air chamber to the canister body by firmly pressing the adhesive area against the canister body.
NOTE:
To insure proper adhesion, clean the mating surface of the canister body with alcohol prior to installation of the Canister Outlet No. 1 Hose Assembly.
(c) Connect the canister chamber outlet hose to the steel pipe as shown.