FUEL PRESSURE RELIEF PROCEDURE
After making sure that engine is cold, relief fuel pressure as follows.
1) Place transmission gear shift lever in “Neutral”, set parking
brake, and block drive wheels.
2) Remove fuel pump relay (1) from connector.
3) Remove fuel filler cap to release fuel vapor pressure in fuel tank
and then reinstall it.
4) Start engine and run it till it stops for lack of fuel. Repeat crank-
ing engine 2 – 3 times of about 3 seconds each time to dissipate
fuel pressure in lines. Fuel connections are now safe for servic-
ing.
5) Upon completion of servicing, install fuel pump relay to relay
box.
CAUTION:
This work must not be done when engine is hot. If done
so, it may cause adverse effect to catalyst.
FUEL LEAKAGE CHECK PROCEDURE
After performing any service on fuel system, check to make sure
that there are no fuel leakages as follows.
1) Turn the ignition switch ON position for 3 seconds (to operate
fuel pump) and then turn it OFF position.
Repeat this (ON and OFF) 3 or 4 times and apply fuel pressure
to fuel line (till fuel pressure is felt by hand placed on fuel return
hose).
2) In this state, check to see that there are no fuel leakages from
any part of fuel system.
6-4
ENGINE DIAGNOSIS
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Страница 354: ...UNIT REPAIR OVERHAUL ENGINE ASSEMBLY REMOVAL AND INSTALLATION Refer to Section 6A ENGINE MECHANICAL F8D ENGINE 6A1 51 ...
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Страница 644: ...Prepared by Overseas Service Department 1st Ed October 1999 Printing 646 ...