Explorer 2WD V6-245 4.0L SOHC VIN E EFI (1997)
Inspection
1.
Is engine running?
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Yes, continue to step 2.
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No, go to step 6.
2.
Check the engine oil level before performing the inspection, add oil if necessary.
NOTE:
The engine should be cold.
3.
Start engine and listen for excessive cam chain noise at the front (left) cam chain.
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If noise goes away within five minutes, check OASIS and perform 00M12 if appropriate.
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If noise persists, continue with the inspection procedure.
4.
Perform an oil pressure test as follows.
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Raise the vehicle.
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Remove the LH inner fender well splash shield.
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Disconnect and remove the oil pressure sensor from the engine.
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Connect the Engine Oil Pressure Gauge, T73L-6600-A or equivalent, to the oil pressure sensor oil galley.
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Run the engine until normal operating temperature is reached.
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Run the engine at 2000 RPM and record the gauge reading.
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Remove the Engine Oil Pressure Gauge and install the oil pressure sensor. Tighten the sensor to 14 Nm (10 lb-ft).
5.
The oil pressure gauge reading should be at least 276 kPa (40 psi).
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If the gauge reading is below 276 kPa (40 psi), contact the Special Service Support Center at 1-800-325-5621.
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If the gauge reading is 276 kPa (40 psi) or higher AND the engine exhibits a rough idle, continue the inspection procedure, step 6.
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If the gauge reading is 276 kPa (40 psi) or higher AND the engine exhibits a smooth idle, proceed to CAMSHAFT CASSETTE
REPLACEMENT.
6.
If the engine is running rough or not running, perform a cylinder leakage test on the left cylinder bank as follows.
a.
Remove the camshaft roller followers from the left side of the engine. Refer to the Roller Followers in Section 303-01B in the appropriate
Workshop Manual.
b.
Remove the spark plugs from the left side of the engine.
c.
For each cylinder, install the Rotunda Engine Cylinder Leak Detector/Air Pressurization kit, 014-00708 or equivalent, into the spark plug
hole.
NOTE:
Since the cam followers have been removed, all the valves on the left cylinder bank will be closed.
Therefore, it is not necessary to bring the pistons to top dead center during the leakdown test.
d.
Pressurize each cylinder with compressed air and read the cylinder leakage gauge.
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If any cylinder has a reading in excess of 50 percent, contact the Special Service Support Center at 1-800-325-5621.
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If all of the cylinders have a reading of 50 percent or less, perform Camshaft Cassette Replacement.
Removal
NOTE:
The LH camshaft roller followers were removed previously if a cylinder leakage test was performed.
