FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

EVAP 4 - Check Vacuum In EVAP System

^ Check for blockage/restrictions or opens (hoses) between engine vacuum port and carbon canister.

^ Check for blockage In fuel tank vent system.

^ Is a fault Indicated?

YES -- Replace damaged vacuum hoses (holes or cuts). Remove blockage or restrictions.

NO -- For 3.0L Flexible Fuel: Go to EVAP7.

All others: Go to EVAP 5. EVAP 5 - Check Canister Purge Solenoid Stuck Closed