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Temp Guage change with new T-tat

This is a discussion on Temp Guage change with new T-tat within the General Help forums, part of the LSx Technical Help Section category; I'm wondering if anyone else has noticed something similar to what I'm experiencing. I had a 180 degree t-stat installed ...

  1. #1
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    Temp Guage change with new T-tat

    I'm wondering if anyone else has noticed something similar to what I'm experiencing. I had a 180 degree t-stat installed in my 02TA and my tuner was supposed to have adjusted the fan's turn on points to match, when I had the car tuned. BUT I see no difference at all in the temp guage readings.

    Could it be that the guage is simply too inaccurate to measure a drop that small or is it more likely that my tuner forgot to make the changes to the fans and the car is still running at basically the same temps despite the slightly cooler T-stat.

  2. #2
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    The 99 and up gauge isn't accurate, it reads a "range" once warmed up. My fans are set lower with a 160 and is the same way.

  3. #3
    MOTOR CITY MARO' SSTODD's Avatar
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    PEWTER
    2000 CAMARO SS #3821

    Same on my 2000 with a 160 stat, I used a scanner with live data to see the actual running temp. and how fast it rises at a stop light with no air flow.

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    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Yep the temp gauge isn't really a gauge. It only reads cold, warm and WAY TOO HOT.

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    Black & Blue
    '02 WS.6 / '07 Suburban

    On a scanner, my car runs right around 185 most of the time with a 180 degree stat and reprogrammed fans. The dash gauge always reads 205.

  6. #6
    We'll be back... GatorSS's Avatar
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    Light Pewter Metallic
    2000 Camaro SS M6

    Yes, sooner or later every owner finds out that the stock water temp 'gauge' isn't really a true gauge (except for '98). It's just a little bit better than an idiot light.

  7. #7
    NastySS NastySS's Avatar
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    2001 Camaro SS 1LE

    Years ago, I bought an SLP Fan Control Switch (Plug and play) for my '01 SS. It has High, Low, and Stock operating positions. Whenever the weather is hot, I always have it running in the HIGH position (Both fans running fast). This keeps my temp guage in a very reasonable position at all times, especially when the A/C is running. Keeps pinging at bay too! Maybe see if SLP still has them? It is one of the best mods I ever did, combined with a 160 degree stat.

  8. #8
    Auto Painter RyanJM's Avatar
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    I have a 160stat in my 98 and reprogramed fans and checked it with my friends computer when we were tuning it and it's actually pretty accurate you may just need a new sensor.
    1998 Trans Am 85k miles.
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  9. #9
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    It's not the sensor, it's the gauge. Your '98 has a 3 wire ECT sensor - '99 and up is two wire.

  10. #10
    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
    98 T/A w/a little mods...

    Quote Originally Posted by 2001NBMZ28 View Post
    It's not the sensor, it's the gauge. Your '98 has a 3 wire ECT sensor - '99 and up is two wire.
    This 98's are the only year that seems to have a functioning temp gauge from factory. Why they went with the other gauge is beyond me.

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