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Overheating

Tiny
KENERO
  • MEMBER
  • 2004 TOYOTA SIENNA
  • 3.3L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 190,000 MILES
Inlet pipe that goes back to engine from lower radiator hose broke and I replaced. While housing was off thermostat was right there so I decided to change. After replacing, van started overheating. Thermostat goes in only one way, right? Anyway cannot seem to locate problem, leaning towards a clogged radiator. I appreciate any feedback because this one got me.
Sincerely,
Ken
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Monday, November 19th, 2018 AT 8:31 AM

1 Reply

Tiny
JONNYB1963
  • MECHANIC
  • 252 POSTS
Hi Ken,

Yes a thermostat could be installed backwards and if so, could cause the behavior you are seeing. One thing I would like to ask is, is the electric fan working?

It sounds like everything was okay prior to the hose change so if that is true, I would double check the installation of the thermostat.

Also see the link below.
https://www.2carpros.com/articles/engine-overheating-or-running-hot
Jon
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Monday, November 19th, 2018 AT 8:56 AM

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