Isuzu Rodeo UE. Manual — part 426
6E2–459
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
Throttle Position (TP) Sensor
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the TPS electrical connector.
3. Remove the bolts and the TP sensor from the throttle
body.
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NOTE: Do not clean the TP sensor by soaking it in
solvent. The sensor will be damaged as a result.
Function Check
Use a Tech 2 to check the TP sensor output voltage at
closed throttle.
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The voltage should be under 0.85 volt.
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If the reading is greater than 0.85 volt, check the
throttle shaft to see if it is binding. Check that the
throttle cable is properly adjusted, also. Refer to
Throttle Cable Adjustment.
f
If the throttle shaft is not binding and the throttle cable
is properly adjusted, install a new TP sensor.
Installation Procedure
1. Install the TP sensor on the throttle body with the
bolts.
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2. Connect the TP electrical connector.
3. Install the negative battery cable.
Vehicle Speed Sensor (VSS)
Removal Procedure
CAUTION: The VSS is located on the right side of
the transfer case just ahead of the rear propeller
shaft and very close to the exhaust pipes. Be sure
that the exhaust pipes are cool enough to touch
before trying to remove the VSS. If the pipes are hot,
you could be burned.
1. Disconnect the negative battery cable.
2. Disconnect the VSS electrical connector.
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6E2–460
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
3. Remove the bolt and the clamp securing the VSS in
place.
IMPORTANT:
Have a container ready to catch any fluid
that leaks out when the VSS is removed from the transfer
case.
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4. Remove the VSS from the transfer case by wiggling it
slightly and pulling it straight out.
Inspection Procedure
1. Inspect the electrical connector for signs of corrosion
or warping. Replace the VSS if the electrical
connector is corroded or warped.
2. Inspect the VSS driven gear for chips, breaks, or worn
condition. Replace the VSS if the driven gear is
chipped, broken or worn.
3. Inspect the O-ring for wear, nicks, tears, or
looseness. Replace the O-ring if necessary.
Installation Procedure
1. Install the VSS in the transfer case with the notch for
the connector facing the rear.
2. Secure the VSS in place with the clamp and the bolt.
Tighten
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Tighten the bolt to 16 N·m (12 lb ft.).
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3. Connect the VSS electrical connector.
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4. Check the transfer case oil level. Add fluid if
necessary.
5. Connect the negative battery cable.
6E2–461
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
Air Cleaner/Air Filter
Removal Procedure
1. Loosen the clamp between the air cleaner lid and the
mass air flow sensor.
2. Release the four latches securing the lid to the air
cleaner housing.
3. Remove the air cleaner lid.
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4. Remove the air filter element.
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5. Remove the retaining bolts and the air cleaner
housing from the vehicle.
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Installation Procedure
1. Install the air cleaner housing in the vehicle with the
retaining bolts.
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6E2–462
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
2. Install the air filter element in the air cleaner housing.
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3. Install the air cleaner lid on the MAF sensor and the air
cleaner housing.
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4. Tighten the clamp and secure the four latches
between the lid and the air cleaner housing.
Idle Air Control (IAC) Valve
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the IAC electrical connector.
3. Remove the bolts and the IAC valve from the throttle
body.
NOTE: Do not clean the IAC valve by soaking it in
solvent. The valve will be damaged as a result.
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Cleaning, Inspection, and Measure-
ment Procedure
f
Clean the IAC valve O-ring sealing surface, pintle
valve seat and air passage.
– Use carburetor cleaner and a parts cleaning brush
to remove carbon deposits. Do not use a cleaner
that contains methyl ethyl ketone. This is an
extremely strong solvent and not necessary for this
type of deposit.
– Shiny spots on the pintle are normal and do not
indicate misalignment or a bent pintle shaft.
– If the air passage has heavy deposits, remove the
throttle body for complete cleaning.
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