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Issues with coolant temp

Posted by 1badpurple, Jan 29, 2011

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  1. 1badpurple

    1badpurple Proven Member

    217
    1
    Joined Jul 15, 2010
    lillian, Alabama
    I'm posting this in the newbie forum because I'm sure its a newbie mistake. I'm showing temps of 240 in link as well as my gauge is reading a little warm.

    But I'm also not boiling the coolant and motor doesn't appear or feel like its running any hotter. So I'm suspecting the coolant temp sensor.

    Just for general info, all the hoses are new. New thermostat. New waterpump. And about 3000 miles on a mitsu composite hg. Im also using arp studs. Any ideas what It might be? This issue just arrised within the last couple of days. I have no idea how old the sensor is.
     
  2. h2rsturbo

    h2rsturbo Proven Member

    36
    0
    Joined Mar 2, 2008
    Puyallup, Washington

    292  0

    1992 Plymouth Laser RS Turbo
    manual · 1G DSM
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  3. Tanro

    Tanro Proven Member

    1,479
    80
    Joined Jul 22, 2009
    Montgomery, Alabama
    Sounds like the Coolant Temp Sensor. Also you may want to consider replacing the pressure cap if you haven't. I try to replace it at about every 12 months.
     

    Street Build 2K  10

    1999 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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  4. 1badpurple

    1badpurple Proven Member

    217
    1
    Joined Jul 15, 2010
    lillian, Alabama
    Hilariously it was the rad cap.
     
  5. CaitSith

    CaitSith Probationary Member

    23
    2
    Joined Nov 7, 2006
    Dallas, Texas
    Ha, what an easy fix!

    Just curious, what rad cap were/are you using? I have an AutoZone one I'm suspecting is bad and now thinking I should get a higher quality one!
     
  6. 303_2G

    303_2G Proven Member

    111
    28
    Joined Dec 11, 2011
    Denver, Colorado
    Rad cap.... Go figure LOL
     

    Street Build 3K  0

    1995 Mitsubishi Eclipse GSX
    manual · 2G DSM
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  7. 1badpurple

    1badpurple Proven Member

    217
    1
    Joined Jul 15, 2010
    lillian, Alabama
    OEM is always best. I know when I tried parts store ones it took 4 to find one that worked correctly.
     

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