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Home >> Jeep >> 1995 >> Grand Cherokee Laredo, 4.0 S, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 181 (Engine Controls - Basic Testing - 2.5L) >> Fuel System >> Fuel Pressure >> Capacity (Volume) Test

Capacity (Volume) Test

WARNING: This page is about a different car, the 1995 Jeep Wrangler and 1995 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

Relieve fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE under FUEL PRESSURE  . Disconnect fuel supply line from fuel rail. Connect 3/8" Fuel Line Pressure Test Adapter (6631) to fuel supply line. Insert other end of test adapter into a graduated container suitable for gasoline. Connect scan tool to Data Link Connector (DLC). Using scan tool, activate fuel pump. Volume of fuel should be one pint (.47L) in 30 seconds. If fuel volume is not as specified, check for a plugged fuel filter, kinked fuel line or fuel pump tank module.