VACUUM CHAMBER INSPECTION [13B-MSP]

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Vacuum Hold Inspection

1.  Remove the extension manifold and oil filler pipe. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [13B-MSP].)

2.  Remove the vacuum hose.

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3.  Install the vacuum pump as shown in the figure.

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4.  Inspect using the following procedure:

(1)  Apply vacuum until it reaches −60 kPa {−450 mmHg, −18 inHg}.

(2)  If it reaches −60 kPa {−450 mmHg, −18 inHg}, stop applying vacuum.

(3)  Verify the displayed vacuum after 10 s.

Standard

−60 —−50 kPa {−450 —−375 mmHg, −18 —−15 inHg}

•  If it is not within the specification, inspect the check valve. (See Check valve.)

Check valve

1.  Remove the check valve.

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2.  Install the vacuum pump as shown in the figure.

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3.  Inspect using the following procedure:

(1)  Apply vacuum until it reaches −60 kPa {−450 mmHg, −18 inHg}.

(2)  If it reaches −60 kPa {−450 mmHg, −18 inHg}, stop applying vacuum.

(3)  Verify the displayed vacuum after 10 s.

Standard

−60 —−50 kPa {−450 —−375 mmHg, −18 —−15 inHg}

•  If not within the specification, replace the check valve.

•  If it is within the specification, inspect the solenoid valve. (See Solenoid valve.)

Solenoid valve

1.  Remove the filter caps from two of the solenoid valves and install blind caps (1010-13104) to the removed positions.

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2.  Install the vacuum pump as shown in the figure.

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3.  Inspect using the following procedure:

(1)  Apply vacuum until it reaches −60 kPa {−450 mmHg, −18 inHg}.

(2)  If it reaches −60 kPa {−450 mmHg, −18 inHg}, stop applying vacuum.

(3)  Verify the displayed vacuum after 10 s.

Standard

−60 —−50 kPa {−450 —−375 mmHg, −18 —−5 inHg}

4.  Perform the same inspection for the remaining two solenoid valves.

•  Replace the solenoid valve which is not within the specification.

•  If all of the solenoid valves are not within the specification, replace the oil filler pipe as a single component.