Engine Oil Pressure: Testing and Inspection

Oil Pressure Check

WARNING:
To avoid danger of being burned, do not touch exhaust system when it is hot. Any
service on exhaust system should be performed when it is cool.

NOTE:
Prior to checking oil pressure, check the following.
^ Oil level in oil pan
If oil level is too low, add oil up to full level mark (hole) on oil level gauge.
^ Oil quality
If oil is discolored or deteriorated, change it. For particular oil to be used.
^ Oil leaks
If leak is found, repair it.

1) With hose connected, detach P/S pump from its bracket.
2) Remove P/S pump bracket.
3) Remove OCV connector.

CAUTION:
After OCV connector installation, check DTC.
When DTC is displayed, be sure to clear DTC.

4) Disconnect oil pressure switch connector (1).
5) Remove oil pressure switch (2) from cylinder block.

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6) Install special tools (oil pressure gauge) to threaded hole from which oil pressure switch was
removed.
Special Tool
(A): 09915?77311
(B): 09915?78211

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7) Install P/S pump bracket.
8) Install P/S pump.
9) Start engine and warm engine up to normal operating temperature.
NOTE:
Be sure to shift select lever to ?P? range, set parking brake and block drive
wheels.
10) Raise engine speed to 4,000 rpm and measure oil pressure.
Oil pressure specification
More than 300 ? 500 kPa (3.1 ? 5.1 kgf/cm�, 43.5 ? 72.5 psi) at 4,000 rpm.
11) With hose connected, detach P/S pump from its bracket.
12) Remove P/S pump bracket.
13) Remove special tool from cylinder block.
14) Before reinstalling oil pressure switch (2), be sure to wrap its screw threads with sealing
tape (1) and tighten switch to specified torque.

NOTE:
If sealing tape edge extend beyond screw threads of switch, cut it off to threads
width.

Tightening torque
Oil pressure switch (a): 13 N�m (1.3 kg-m, 9.5 lbf-ft)

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15) Connect oil pressure switch connector (1).

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16) Install P/S pump bracket.
17) Install P/S pump.
18) Connect OCV connector.
19) Clearance for DTC.
20) Start engine and check oil pressure switch for oil leakage. If oil leakage is found, repair it.
21) Check for DTC.