LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

overheating issue

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Old 03-20-12, 05:13 PM
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steve1117
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Default overheating issue

Having trouble with my daughter's car- She was driving on the parkway when the car stopped, luckily she was going fast enough to where she had enough speed to get to the shoulder - it ended up being the timing belt. Got that changed.

coincidently, on the WAY HOME from the mechanic, the car overheated.

the mechanic checked the water pump, that was fine. I turned on the heat full blast, it's ice cold. I took the thermostat out, put it in a pot of boiling hot water, it did not open. So I'm on my way out now to go change the thermostat..hopefully that's the issue. Any other suggestions?
Old 03-20-12, 05:32 PM
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GS4_Fiend
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I'm pretty confident that's your problem, thermostat is not opening. Also, dont forget to bleed out the air after installing the thermostat.
Old 03-20-12, 06:16 PM
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ultm8mind
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Yes, definitely bleed all those bubbles out...
Old 03-20-12, 06:37 PM
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AJT123
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The timing belt snapped and the motor didn't seize?

Lucky. I don't even wanna know the replacement cost for a motor this sophisticated.
Old 03-20-12, 07:26 PM
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Brewmyown
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The mechanic probably didn't bleed the system properly. There was an air pocket which likely caused the overheating. I've seen it on many cars where the coolant was drained for a repair of some sort. Some cars are difficult to bleed. Maybe the thermostat was a coincidence???
Old 03-21-12, 09:28 AM
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Milan
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Originally Posted by AJT123
The timing belt snapped and the motor didn't seize?
Also curious about this.
Old 03-26-12, 04:30 PM
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steve1117
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Friend of mine changed out the timing belt, he also said I I got very lucky,the engine did not seize.
I changed the thermostat got rid if the air pockets the car is fine.
But I do have a check engine light code P0135 02 sensor bank 1.
Also I got a tailamp failure changed the bulb checked every bulb the light will not go off.
I even tried removing it with my OB machine did not work.
Underneath that message I have a Range approximately message with miles counting down.
Any ideas on this problem???
Steve
Old 03-27-12, 11:47 AM
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Gene01
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Engine siezing: What year/model is your daughter's car?
The LS400 before 1995 had a non-interfering engine, which will not be destroyed by a broken timing belt.

Taillamp failure: I think there is a thread devoted to this topic. The common cause is a wiring fault where the harness enters the trunk at the hinge (may not apply to your year/model).
Old 04-01-12, 05:14 PM
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steve1117
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gene
Thank You but believe it or not I didn't realize the license plate bulbs were out. I think this solved it unless the light comes back on.
But I do have that other warning light that reads "range approximately 216 miles" and counting down as I drive'
This message is below where the tailight lamp failure was.
Any ideas???
Old 04-02-12, 07:26 AM
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Brewmyown
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If your talking about the "Range", that is how many miles you have till your out of gas. Hit the DSP1 button on the steering wheel for more information
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