
5.FUELSYSTEM
5-3
FUEL PUMP
Fuel pump electrical test.
When turning ignition key ON, the fuel pump should
run for 5 seconds to build up the fuel pressure in the
system.
If the pump does not work, disconnect the connector
from the fuel pump.
Install a temporary connector to the fuel pump
connector. Apply 12V to this test harness.
CAUTION
If pump does not run, replace a new pump.
Other wise, check fuse and if good, probe terminals of fuel pump connector on vehicle harness or its connector,
Repair or replace appropriate part.
Fuel pump removal
Remove fuel pump outlet hose and harness.
Remove fuel pump retaining screws.
Gently push pump up.
CAUTION
Fuel pump installation
For installation, reverse the removal process but pay attention to the following.
Install a new gasket.
Pay attention to pump orientation.
Tighten retaining screws as per illustrated sequence.
Install hose properly on OUT nipples and harness.
FUEL TANK
Fuel tank draining
Never perform this operation when the engine and/or the exhaust system is/are hot.
Never sue a hose pincher on injection system high pressure hoses.
Remove fuel tank cap and siphon gas in an approved fuel container.
Fuel tank removal
Remove
Disconnect vent line from body.
Fuel tank inspection
Inspect fuel tank for any damage or cracks which may result in fuel leaks. If so replace tank with a new one.
Inspect tank and protector attachment points for damage. Inspect protector for damage.
Running the fuel pump a few minutes with
reverse polarity can damage the pump.
While pulling out the fuel pump, pay attention
to fuel sensor float arm. Float arm can get stuck
and bend which can reduce the fuel sensor
capabilities.