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Hello all,

I have this tapping sound at the rear of the car. I think it is the TSB below. I also have strong smell of gas fumes in the same area as the CDCV. Could these two be linked? Has anyone ever replace this before? The dealership wants $200 for the CDCV and the bracket (kit).
any help is wonderful.

Thanks!

Make :

MAZDA Model : 626 Year : 1998

Manufacturer :

MAZDA NORTH AMERICAN OPERATIONS

Service Bulletin Number :

00400 Date of Bulletin : MAR 09, 2000

NHTSA Item Number :

621302

Component :

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

Summary :

SOME VEHICLES MAY EXHIBIT A TAPPING NOISE WHICH CAN BE HEARD COMING FROM THE REAR OF THE VEHICLE WITHIN
THE FIRST 10 MINUTES AFTER A COLD START. THIS CONCERN MAY BE CAUSED BY THE OPERATION OF THE CDCV (CANISTER

DRAIN CUT VALVE) SOLENOID DURING THE EVAPORATIVE EMISSION MONITOR. *TT