2005 LEXUS ES300 low oil pressure

550BQ-01
AC2810
AC2811
N11084
Wrong Okay
HI
LO HI LO
- HEATER & AIR CONDITIONERAIR CONDITIONING SYSTEM
55-1
2616 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
AIR CONDITIONING SYSTEM
PRECAUTION
1. DO NOT HANDLE REFRIGERANT IN AN ENCLOSED
AREA OR NEAR AN OPEN FLAME
2. ALWAYS WEAR EYE PROTECTION
3. BE CAREFUL NOT TO GET LIQUID REFRIGERANT IN
YOUR EYES OR ON YOUR SKIN
If liquid refrigerant gets in your eyes or on your skin.
(a) Wash the area with lots of cool water.
CAUTION:
Do not rub your eyes or skin.
(b) Apply clean petroleum jelly to the skin.
(c) Go immediately to a physician or hospital for professional
treatment.
4. NEVER HEAT CONTAINER OR EXPOSE IT TO NAKED
FLAME
5. BE CAREFUL NOT TO DROP CONTAINER AND NOT
TO APPLY PHYSICAL SHOCKS TO IT
6. DO NOT OPERATE COMPRESSOR WITHOUT
ENOUGH REFRIGERANT IN REFRIGERANT SYSTEM
If there is not enough refrigerant in the refrigerant system oil lu-
brication will be insufficient and compressor burnout may occur,
so take care to avoid this, necessary care should be taken.
7. DO NOT OPEN HIGH PRESSURE MANIFOLD VALVE
WHILE COMPRESSOR IS OPERATING
If the high pressure valves opened, refrigerant flows in the re-
verse direction and could cause the charging cylinder to rup-
ture, so open and close the only low pressure valve.
8. BE CAREFUL NOT TO OVERCHARGE SYSTEM WITH
REFRIGERANT
If refrigerant is overcharged, it causes problems such as insuffi-
cient cooling, poor fuel economy, engine overheating etc.

I22122
Condition: Cooling system does not function.
NOTE : These gauge indica-
tions are shown when the
refrigerating system has
been opens and the refriger-
ant charged without vacuum
purging.
I22123
Condition: Refrigerant functions insufficient. 55-6
- HEATER & AIR CONDITIONERREFRIGERANT
2621 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(7) Air present in refrigeration system
SymptomProbable causeDiagnosisCorrective Actions

Pressure too high on both low
and high pressure sides

The low pressure piping too hot
to the touch

Bubbles seen through sight glass
Air entered in refrigerating system

Air present in refrigerating sys-
tem

Insufficient vacuum purging
(1) Check compressor oil to see if
it is see if it is dirty or insufficient
(2) Evacuate air and supply new
refrigerant
(8) Expansion valve improperly
SymptomProbable causeDiagnosisCorrective Actions

Pressure too high on both low
and high pressure sides

Frost or large amount of dew on
piping on low pressure side
Trouble in expansion valve

Excessive refrigerant in low
pressure piping

Expansion valve opened too
wide
Check expansion valve

P19471
Compression Gauge
- ENGINE MECHANICALENGINE (3MZ-FE)
14-3
2095 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
9. INSPECT COMPRESSION
(a) Warm up and stop the engine.
(b) Remove the intake air surge tank (see page 11-13).
(c) Disconnect the injector connectors.
(d) Remove the ignition coils.
(e) Remove the spark plugs.
(f) Inspect the cylinder compression pressure.
(1) Insert a compression gauge into the spark plug
hole.
SST 09992-00500
(2) Fully open the throttle.
(3) While cranking the engine, measure the compres-
sion pressure.
Compression pressure:
1.5 MPa (15.3 kgf/cm
2, 218 psi)
Minimum pressure:
1.0 MPa (10.2 kgf/cm
2, 145 psi)
Difference between each cylinder:
100 kPa (1.0 kgf/cm
2, 15 psi)
NOTICE:

Always use a fully-charged battery to obtain engine
speed of 250 rpm or more.

Check the other cylinder's compression pressure in
the same way.

This measurement must be done as quickly as pos-
sible.
(4) If the cylinder compression is low, pour a small
amount of engine oil into the cylinder through the
spark plug hole, then inspect again.
HINT:

If adding oil increases the compression, the piston rings
and/or cylinder bore may be worn or damaged.

If pressure stays low, the valve may be sticking or seated
improperly, or there may be leakage past the gasket.
10. INSPECT CO/HC
HINT:
The ECM properly controls the CO/HC concentration in the emission gas.
(a) Start the engine.
(b) Run the engine at 2,500 rpm for approximately 180 seconds.
(c) Insert the CO/HC meter testing probe at least 40 cm (1.3 ft) into the tailpipe during idling.
(d) Check the CO/HC concentration at idle and/or at 2,500 rpm.
HINT:
When doing the 2 mode (with the engine is at idle and at 2,500 rpm) tests, these measuring order are pre-
scribed by the applicable local regulations.
If the CO/HC concentration does not comply with the regulations, troubleshoot in the order given below.
(1) Check the heated oxygen sensor operation (see page 05-126).

141J9-02
A60072
- ENGINE MECHANICALPARTIAL ENGINE ASSY (3MZ-FE)
14-29
2121 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
REPLACEMENT
1. DISCHARGE FUEL SYSTEM PRESSURE (See page 11-1)
2. DISCONNECT BATTERY NEGATIVE TERMINAL
3. REMOVE FRONT WHEELS
4. REMOVE ENGINE UNDER COVER NO.1
5. REMOVE ENGINE UNDER COVER NO.2
6. REMOVE FRONT FENDER APRON SEAL RH
7. DRAIN ENGINE COOLANT (See page 16-9)
8. DRAIN ENGINE OIL (See page 17-20)
9. DRAIN AUTOMATIC TRANSAXLE FLUID (See page 30-8)
10. REMOVE V-BANK COVER SUB-ASSY (See page 10-1 1)
11. REMOVE RADIATOR LOWER AIR DEFLECTOR (See page 19-5)
12. REMOVE BATTERY
13. REMOVE BATTERY TRAY
14. REMOVE AIR CLEANER INLET ASSY (See page 19-5)
15. REMOVE AIR CLEANER ASSY (See page 19-5)
16. REMOVE AIR CLEANER BRACKET (See page 19-5)
17. REMOVE AIR CLEANER INLET NO.1 (See page 19-5)
18. REMOVE INTAKE AIR RESONATOR SUB-ASSY
(a) Remove the clip and bolt, then remove the intake air resonator.
19. REMOVE V (COOLER COMPRESSOR TO CRANKSHAFT PULLEY) BELT NO.1
(See page 14-5)
20. REMOVE GENERATOR ASSY (See page 19-21)
21. REMOVE ENGINE MOVING CONTROL ROD (See page 14-79)
22. REMOVE ENGINE MOUNTING STAY NO.2 RH (See page 14-79)
23. REMOVE GENERATOR BRACKET NO.2 (See page 14-79)
24. REMOVE GENERATOR BELT ADJUSTING BAR (See page 17-9)
25. SEPARATE COMPRESSOR AND MAGNETIC CLUTCH (See page 17-9)
26. SEPARATE TRANSMISSION CONTROL CABLE ASSY (See page 40-44)
27. DISCONNECT UNION TO CHECK VALVE HOSE
28. DISCONNECT FUEL VAPOR FEED HOSE NO.1
29. DISCONNECT FUEL PIPE SUB-ASSY NO.1 (See page 11-1)
30. DISCONNECT HEATER INLET WATER HOSE
31. DISCONNECT HEATER OUTLET WATER HOSE
32. DISCONNECT RADIATOR HOSE INLET
33. DISCONNECT RADIATOR HOSE OUTLET
34. DISCONNECT OIL COOLER INLET HOSE
35. DISCONNECT OIL COOLER OUTLET HOSE
36. DISCONNECT OIL RESERVOIR TO PUMP HOSE NO.1

A36238
A78326
Turn
A05052
A36239
- ENGINE MECHANICALPARTIAL ENGINE ASSY (3MZ-FE)
14-69
2161 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
90. INSTALL TIMING BELT TENSIONER ASSY
(a) Set the timing belt tensioner upright on the press.
(b) Slowly press in the push rod.
NOTICE:
Do not apply pressure more than 9.8 kN (1,000 kgf, 2,205
lbf) to the rod.
(c) Align the holes of the push rod and housing, then pass a
1.5 mm hexagon wrench through the holes to keep the
setting position of the push rod.
(d) Release the press.
(e) Temporarily install the tensioner with the 2 bolts. Alter-
nately tighten the 2 bolts.
Torque: 27 NVm (280 kgfVcm, 20 ftVlbf)
NOTICE:
Be sure to tighten the bolts uniformly. Installing the ten-
sioner at an angle may cause failure of its proper operation.
(f) Remove the 1.5 mm hexagon wrench from the tensioner.
(g) Turn the crankshaft 2 revolutions slowly, then align the
timing mark of the crankshaft timing pulley with the oil
pump body.
NOTICE:
Always turn the crankshaft clockwise.
(h) Check that the timing marks of the RH and LH timing pul-
leys are aligned with the timing marks of the timing belt
No. 3 cover as shown in the illustration.
If the marks are not aligned, remove the timing belt and reinstall
it.
(i) Remove the crankshaft pulley bolt.
91. INSTALL TIMING BELT GUIDE NO.2
(a) Install the timing belt guide with the cup side facing the en-
gine front.

A36238
A78326
Turn
A05052
A36239
14-84
- ENGINE MECHANICALTIMING BELT (3MZ-FE)
2176 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
16. INSTALL TIMING BELT TENSIONER ASSY
(a) Set the timing belt tensioner upright on the press.
(b) Slowly press in the push rod.
NOTICE:
Do not apply pressure more than 9.8 kN (1,000 kgf, 2,205
lbf) to the rod.
(c) Align the holes of the push rod and housing, then pass a
1.5 mm hexagon wrench through the holes to keep the
setting position of the push rod.
(d) Release the press.
(e) Temporarily install the tensioner with the 2 bolts. Alter-
nately tighten the 2 bolts.
Torque: 27 NVm (280 kgfVcm, 20 ftVlbf)
NOTICE:
Be sure to tighten the bolts uniformly. Installing the ten-
sioner at an angle may cause failure of its proper operation.
(f) Remove the 1.5 mm hexagon wrench from the tensioner.
(g) Turn the crankshaft 2 revolutions slowly, then align the
timing mark of the crankshaft timing pulley with the oil
pump body.
NOTICE:
Always turn the crankshaft clockwise.
(h) Check that the timing marks of the RH and LH timing pul-
leys are aligned with the timing marks of the timing belt
No. 3 cover as shown in the illustration.
If the marks are not aligned, remove the timing belt and reinstall
it.
(i) Remove the crankshaft pulley bolt.
17. INSTALL TIMING BELT GUIDE NO.2
(a) Install the timing belt guide with the cup side facing the en-
gine front.

141JJ-01
A86574
- ENGINE MECHANICALCYLINDER HEAD GASKET NO.2 (3MZ-FE)
14-133
2225 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
REPLACEMENT
1. DISCHARGE FUEL SYSTEM PRESSURE (See page 11-1)
2. DISCONNECT BATTERY NEGATIVE TERMINAL
3. DRAIN ENGINE COOLANT (See page 16-9)
4. DRAIN ENGINE OIL (See page 17-20)
5. REMOVE FRONT WHEEL RH
6. REMOVE RADIATOR LOWER AIR DEFLECTOR (See page 19-5)
7. REMOVE FRONT SUSPENSION UPPER BRACE CENTER (W/O TEMS) (See page 10-1 1)
8. REMOVE V-BANK COVER SUB-ASSY (See page 10-1 1)
9. REMOVE AIR CLEANER INLET ASSY (See page 19-5)
10. REMOVE AIR CLEANER CAP SUB-ASSY (See page 10-1 1)
11. REMOVE AIR CLEANER CASE (See page 19-5)
12. REMOVE EMISSION CONTROL VALVE SET (See page 11-13)
13. REMOVE INTAKE AIR SURGE TANK (See page 11-13)
14. REMOVE INTAKE MANIFOLD (See page 10-16)
15. REMOVE WATER OUTLET (See page 10-16)
16. REMOVE FRONT FENDER APRON SEAL RH
17. REMOVE V (COOLER COMPRESSOR TO CRANKSHAFT PULLEY) BELT NO.1
(See page 14-5)
18. REMOVE VANE PUMP V BELT (See page 14-5)
19. REMOVE ENGINE MOVING CONTROL ROD (See page 14-79)
20. REMOVE ENGINE MOUNTING STAY NO.2 RH (See page 14-79)
21. REMOVE GENERATOR BRACKET NO.2 (See page 14-79)
22. REMOVE CRANKSHAFT PULLEY (See page 14-79)
SST 09213-54015 (91651-60855), 09330-00021, 09950-50013 (09951-05010, 09952-05010,
09953-05020, 09954-05031)
23. REMOVE TIMING BELT NO.1 COVER
24. REMOVE TIMING BELT NO.2 COVER (See page 14-79)
25. REMOVE ENGINE MOUNTING BRACKET RH (See page 14-79)
26. REMOVE TIMING BELT GUIDE NO.2
27. REMOVE TIMING BELT (See page 14-79)
28. REMOVE TIMING BELT IDLER SUB-ASSY NO.2
29. REMOVE CAMSHAFT TIMING PULLEY (See page 14-93)
SST 09960-10010 (09962-01000, 09963-01000), 09249-63010
30. REMOVE TIMING BELT NO.3 COVER (See page 14-93)
31. REMOVE MANIFOLD STAY NO.2 (See page 14-29)
32. SEPARATE EXHAUST PIPE ASSY FRONT (See page 15-2)
33. REMOVE OIL LEVEL GAGE GUIDE
(a) Remove the bolt which secures the oil level gage guide
from the cylinder head LH.
(b) Pull out the oil level gage guide and oil level gage together
from the cylinder block.
(c) Remove the O-ring from the oil level gage guide.

100J0-01
A86282
Ohmmeter
A86283Battery Spool Valve
A84676Battery Voltmeter
Air 10-2
- ENGINE CONTROL SYSTEMSFI SYSTEM (3MZ-FE)
2007 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
INSPECTION
1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Inspect the resistance.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Standard:
Tester ConnectionSpecified Condition
1 (-) - 2 (+)6.9 to 7.9 W at 20
C (68
F)
If the resistance is not as specified, replace the camshaft timing
oil control valve.
(b) Check the operation.
(1) Connect the positive (+) lead from the battery to ter-
minal 2 (+) and negative (-) lead to terminal 1 (-),
then check the movement of the spool valve.
NOTICE:
Confirm that the spool valve moves freely and does not get
stuck in any position.
HINT:
Bad returning of the spool valve resulted from catching foreign
objects causes subtle pressure leak to the advanced direction.
In that case, DTC can be detected.
2. INSPECT MASS AIR FLOW METER
(a) Check the operation.
(1) Apply battery voltage across terminals 1 (+B) and 2
(E2G).
(2) Using voltmeter, connect the positive (+) tester
probe to terminal 3 (VC), and negative (-) tester
probe to terminal 2 (E2G).
(3) Blow air into the mass air flow sensor, then check
that the voltage fluctuates.
If the operation is not as specified, replace the mass air flow
sensor.