Vacuum Chamber Inspection

WARNING: This page is about a different variant/trim than selected.

Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION ).
Disconnect the vacuum hose from the cylinder head cover.

Courtesy of MAZDA MOTORS CORP.
Apply negative pressure (-94 kPa {-705 mmHg, -28 inHg}) on the port A for one minute to check for the leakage of negative pressure.

G11436461

Courtesy of MAZDA MOTORS CORP.

If there is air leakage, replace the cylinder head cover. (See TIMING CHAIN REMOVAL/INSTALLATION ).