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1995 Lexus LS 400 Temperature Gauge

Tiny
STEVELS400
  • MEMBER
  • 1995 LEXUS LS 400
  • V8
  • 2WD
  • AUTOMATIC
  • 182,000 MILES
Temp Gauge was working fine then nothing.
Gauge works by shorting.
Replaced sender and gauge rose to between nil and quarter (previous normal was half) when at full operating temp.
Filled expansion tank to max and have been running with gauge getting to half way to quarter for 3 weeks. No problem.
Yesterday on a long high speed run, gauge fell to nothing again. No problems and expansion tank still full.

Am now at a loss as to what to do.
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Thursday, July 23rd, 2009 AT 1:54 PM

2 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Suspect faulty engine coolant temperature (ECT) sensor, located on top of intake manifold, below the IAC valve
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Thursday, July 23rd, 2009 AT 2:18 PM
Tiny
STEVELS400
  • MEMBER
  • 2 POSTS
This has been changed in an attempt to solve the problem. It didnt
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Friday, July 24th, 2009 AT 4:26 AM

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