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2002 Lexus ES300 Question: I have installed thermostats is Ford and GM engines. Why is this one difficult?

 

Question

Hishaw, 3.0L V6, Kansas City, MO, October 18, 2011, 09:56
 Rookie

The dealer says Thermostat is stuck open and wants $230+ to replace it. Normally thermostat replacement has been rather simple. Location is at the top of the block under the cap at the end of the radiator hose, 2 screws to open and you are there. What makes this one so complex? Advance Auto Parts has replacement for 1/2 of what you suggest for parts and I think I can do the labor unless there is something I don't know about.

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  • Answer #1

    October 18, 2011, 10:52
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     Master

    REPLACEMENT

    DRAIN COOLANT
    REMOVE BATTERY
    REMOVE AIR CLEANER INLET ASSY
    REMOVE AIR CLEANER ASSEMBLY WITH HOSE
    REMOVE AIR CLEANER BRACKET
    REMOVE AIR CLEANER INLET NO.1
    DISCONNECT RADIATOR HOSE OUTLET
    REMOVE WATER INLET PIPE

    Remove the bolt and water inlet pipe.

    REMOVE WATER INLET

    Remove the 3 bolts and water inlet.

    REMOVE THERMOSTAT
    INSTALL THERMOSTAT

    Install a new gasket to the thermostat.
    Align the thermostat jiggle valve with the upper stud bolt, and insert the thermostat in the water inlet housing.

    HINT: The jiggle valve may be set within 15° of either side of the prescribed position.

    INSTALL WATER INLET Torque: 8 Nm (82 kgf-cm, 71 inch lbs.)
    INSTALL WATER INLET PIPE

    Install a new O-ring to the water inlet pipe.
    Apply soapy water to the O-ring.
    Connect the water inlet pipe to the water inlet.
    Install the bolt holding the water inlet pipe to the cylinder head. Torque: 20 Nm (204 kgf-cm, 15 ft. lbs.)

    INSTALL AIR CLEANER ASSEMBLY WITH HOSE
    CONNECT VACUUM HOSE
    ADD COOLANT
    CHECK ENGINE COOLANT LEAK

    not as easy as you think.

    Roy

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    Hishaw, October 18, 2011, 12:17
     Rookie

    Thank You. I get it. I'm dated. The last one I changed was a 69 Gran Prix.

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    mastertech6371, October 18, 2011, 13:13
    Profile_thumbnail
     Master

    dont we all wish they were all that easy.

    Roy

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