If You Cannot Increase The Engine Speed; If Your Vehicle Overheats - Toyota tundra 2003 User Manual

If you cannot increase the
engine speed
(5VZ−FE engine)
If the engine speed does not
increase with the accelerator
pedal depressed down to about the
middle position, there may be a
problem somewhere in
electronic throttle control
system.
At this time, if you depress the accelera-
tor pedal more firmly and slowly, you can
drive your vehicle at low speeds. Have
your vehicle checked by your Toyota deal-
er as soon as possible.
Even if the abnormality of the electronic
throttle control system is corrected during
low speed driving, the system may not be
recovered until the engine is stopped and
the ignition key is turned to "ACC" or
"LOCK" position.
CAUTION
Be especially careful to prevent erro-
neous pedal operation.
238
If you cannot increase the
engine speed
(2UZ−FE engine)
If the engine speed does not
increase with the accelerator
pedal depressed
may be a problem somewhere in
your your electronic
control system.
At this time, vibration may occur. Howev-
er, if you depress the accelerator pedal
more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle
checked by your Toyota dealer as soon as
possible.
Even if the abnormality of the electronic
throttle control system is corrected during
low speed driving, the system may not be
recovered until the engine is stopped and
the ignition key is turned to "ACC" or
"LOCK" position.
CAUTION
Be especially careful to prevent erro-
neous pedal operation.
'03 TUNDRA_U (L/O 0307)

If your vehicle overheats

If your engine
gauge indicates overheating, if you ex-
down,
there perience a loss of power, or if you hear
a loud knocking or pinging noise, the
throttle engine has probably overheated. You
should follow this procedure...
1. Pull safely off the road, stop the ve-
hicle and
flashers. Put the transmission in "P"
(automatic) or neutral (manual) and ap-
ply the parking brake. Turn off the air
conditioning if it is being used.
2. If coolant or steam is boiling out of the
radiator or reservoir, stop the engine.
Wait until the steam subsides before
opening the hood. If there is no coolant
boiling over or steam, leave the engine
running.
To help avoid personal injury, keep
the hood closed until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
2003 TUNDRA from Jul. '03 Prod. (OM34430U)
coolant temperature
turn on your emergency
CAUTION