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Toyota Sienna Service Manual: For vehicles equipped with catalytic converter

Toyota Sienna Service Manual / Introduction / Repair instruction / Precaution / For vehicles equipped with catalytic converter

CAUTION: If a large amount of unburned gasoline or gasoline vapors flow into the converter, it may cause overheating and create a fire hazard. To prevent this, observe the following precautions:

(a) Use only unleaded gasoline.

(b) Avoid idling the engine for more than 20 minutes.

(c) Avoid performing unnecessary spark jump tests.

(1) Perform a spark jump test only when absolutely necessary. Perform this test as rapidly as possible.

(2) While testing, never race the engine.

(d) Avoid a prolonged engine compression measurement. Engine compression measurements must be performed as rapidly as possible.

(e) Do not run the engine when the fuel tank is nearly empty. This may cause the engine to misfire and create an extra load on the converter.

When towing full-time 4wd vehicles
Use one of the methods shown below to tow the vehicle. If the vehicle has trouble with the chassis or drive train, use method 1 (flat bed truck). WHEN TOWING FULL-TIME 4WD VEHICLES ...

Precaution for cooling fan system
NOTICE: • When the ignition switch is turned off and the engine temperature is high, the cooling fans may operate for approximately 3 minutes. • After turning the ignition switch off, ke ...

Other materials:

Rear washer motor
ON-VEHICLE INSPECTION 1. INSPECT REAR WASHER MOTOR  Pour the water into the washer jar with the rear washer motor assembly installed to the washer jar assembly.  Connect the battery (+) to the terminal 1 of the rear washer motor assembly, the battery (-) to the terminal ...

Checking monitor status
The purpose of the monitor result (mode 06) is to allow access to the results for on-board diagnostic monitoring tests of specific components/systems that are not continuously monitored. Examples are catalyst, evaporative emission (EVAP) and thermostat. The monitor result allows the OBD II sc ...

Vehicle Speed Sensor Malfunction
DTC P0500 Vehicle Speed Sensor Malfunction DTC P0503 Vehicle Speed Sensor "A" Intermittent / Erratic / High DESCRIPTION The cruise control system uses the same vehicle speed signal that is sent to the ECM for the SFI system. If DTC P0500 is detected, perform the diagnosis using th ...

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