5.
Without starting the engine, turn the ignition
switch to the ON position (Fig. 25.7). The elec-
tronic gauges on the instrumentation control unit
(ICU) will complete a full sweep of their dials, the
warning and indicator lights will illuminate, and
the buzzer will sound for three seconds.
6.
Turn the ignition switch to the START position.
Press down on the clutch pedal, if equipped, but
do not press down on the accelerator pedal.
Release the key the moment the engine starts.
7.
Bring the engine up to operating speed gradually
as it warms up and develops stable oil pressure.
If the vehicle has not been operated previously in
a 24-hour period, allow the vehicle to idle for five
minutes.
NOTICE
Do not rev the engine if the oil pressure gauge
indicates no oil pressure. Shut down the engine
within approximately ten seconds to avoid engine
damage.
8.
Check the oil pressure gauge for any drop in lu-
bricating oil pressure or mechanical malfunction
in the lubricating oil system.
Major Repairs and
Replacement of Natural Gas
Components
IMPORTANT: All repairs to natural gas system
and components must be performed by certified
technicians.
If a natural-gas-fueled vehicle is involved in an acci-
dent, remove the fuel tank or cylinders from service
and have them inspected by a qualified technician.
Replace any leaking or damaged fuel tanks/cylinders
and fuel lines; repair or replace leaking or damaged
fittings. Install parts and components in accordance
with the manufacturer’s instructions.
07/19/2006 f610805
Fig. 25.7, Ignition Switch Positions
Natural Gas Vehicles
25.10
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