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RX - 2nd Gen (2004-2009) Discussion topics related to the 2004 -2009 RX330, RX350 and RX400H models

Heater Fluctuating From Hot And Cold

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Old Feb 25, 2026 | 06:48 AM
  #16  
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Margate330
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Originally Posted by HobieMarty
Thanks. I'm glad I caught it before it became an overheating issue and a bigger problem.
Oh yeah, like overheating the engine and blowing a head gasket. 😂

I've done it on other cars. Lol
I saw my neighbor adding water to his radiator every day and warned him he needs to find the leak fast before he overheats his engine.

He said, psshht...
Two weeks later I saw it dropped off by a tow truck with a blown engine. Lol
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Old Feb 25, 2026 | 07:12 AM
  #17  
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Originally Posted by Margate330
Oh yeah, like overheating the engine and blowing a head gasket. 😂

I've done it on other cars. Lol
I saw my neighbor adding water to his radiator every day and warned him he needs to find the leak fast before he overheats his engine.

He said, psshht...
Two weeks later I saw it dropped off by a tow truck with a blown engine. Lol
Yeah, I kind of like this vehicle so I would like to keep it around as long as I can 😆

You're neighbor should've listened to you.
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Old Feb 25, 2026 | 07:21 AM
  #18  
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Originally Posted by HobieMarty
Yeah, I kind of like this vehicle so I would like to keep it around as long as I can 😆

You're neighbor should've listened to you.
Nobody is obligated to believe a word I say, but I did warn him. Lol

His slow water leak turned into a big water leak.
Overheated his engine and cracked the cylinder head and unknown other damage.

The tech who looked at it said they wouldn't know the extent of the damage untill the engine was torn down, yikes! 😂

So he went and got himself a new car and parked it in overflow parking where it sat for 2 years until it was junked.
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