Emissions Control Systems Modifications

THIS VACUUM SCHEMATIC

IS REPRESENTATIVE OF THOSE

INVOLVED IN THIS RECALL.


(1) Disconnect the vacuum hose at the air control side of the combination air bypass and air control valve, and plug the hose with a vacuum connector (part number 383003-S) and a vacuum cap (part number 382444-S).

(2) Remove the vacuum hose at the EGR valve and install a 3-way tee (part number 373846-S) and a 3-inch length of vacuum hose (part number D0PZ-12226-B). Attach the 3-inch length of hose to the EGR valve.
(3) Install vacuum delay valve (part number D3DZ- 12AO91 -B) between the 3-way tee and the open port of the combination air bypass and air control valve. Use two 9-inch lengths of vacuum hose (part number D0PZ-12226-B). Attach one length to the open port on the 3-way tee and one length to the open port on the combination air bypass and air control valve. ASSURE THAT THE "BLACK" SIDE OF THE DELAY VALVE IS POSITIONED TOWARD THE VACUUM SOURCE.

(4) FOR VEHICLES WITH MANUAL TRANSMISSIONS ONLY. If the vehicle is equipped with a manual transmission, remove both large diameter outlet hoses on the combination air bypass and air control valve, reverse the hose locations and reinstall the hoses.
EMISSIONS RECALL 87E62 EXHIBIT I