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Thread: Coolant temp sensor

  1. #1
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    Coolant temp sensor

    Is it more then one coolant temp sensor on the 2004 MM?


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  2. #2
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    Yes
    One is for the PCM.
    The other is for the electric fan.

  3. #3
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    are they the same size? I asked because I’m having a problem finding the right sensors


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  4. #4
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    Quote Originally Posted by Mook4949 View Post
    Is it more then one coolant temp sensor on the 2004 MM?


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    Yes there are two of them.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  5. #5
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    Where can I get them from autozone gave me the wrong part twice


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  6. #6
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    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  7. #7
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    Quote Originally Posted by Mook4949 View Post
    are they the same size? I asked because I’m having a problem finding the right sensors


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    They may be the same size but they are completely different parts and are not interchangeable.

    WLB
    BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
    ______________________________ ___________

    BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
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    Conceived 8/6/2002
    Delivered 9/19/2002
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  8. #8
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    So do they have different names


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  9. #9
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    Quote Originally Posted by Mook4949 View Post
    So do they have different names


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    1 is the ECM coolant temp sensor


    1 is the Engine coolant temp sensor


    They may show different names on the parts with different manufacturers, look at the part description to tell.


    The location on the engine will tell you which one it is.

    WLB
    BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
    ______________________________ ___________

    BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
    #2912 of 7093
    Conceived 8/6/2002
    Delivered 9/19/2002
    Adopted 8/10/2011
    Trilogy 242 - Self Installed 9/9/12 (0-60 5.5 sec)
    Pioneer 6x8 Front
    Legacy 600w 6x9 Rears
    JL 6.5 SubWoofer
    K&N CAI
    Window tint 50% rear/35% front
    FBM CHMSL with Strobe mod 7/1/12
    DR Deep Aluminum Trans Pan
    Sparta FOMOCO Racing 8.8 Girdle
    Mo's Dyno Tune
    Gorilla Nuts - The System
    Ford Racing 4.10s, 31 spline Cobra carrier & axles 7/1/12
    Powder Coat Axle Housing 7/1/12
    CME HP Rear Control Arms & Watts Link 7/1/12
    ______________________________ ________________

    Rex "SC Cheesehead" Weinbender 11-14-13
    Ed "Baaad GN" Linthicum 8-6-2014

  10. #10
    Join Date
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    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  11. #11
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    I seen them on rock auto but I typed the two different names in and the same sensor came up


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  12. #12
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    I believe one is called cylinder head temp sensor on the Ford computer. Of course their own computer shows the engine as a 2V..

    Even the terminals are different between the two so you can’t mix it up.


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  13. #13
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    Which of the 2 coolant sensors do you want?


    If not sure, which side of the coolant tube is the bad sensor on?

    WLB
    BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
    ______________________________ ___________

    BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
    #2912 of 7093
    Conceived 8/6/2002
    Delivered 9/19/2002
    Adopted 8/10/2011
    Trilogy 242 - Self Installed 9/9/12 (0-60 5.5 sec)
    Pioneer 6x8 Front
    Legacy 600w 6x9 Rears
    JL 6.5 SubWoofer
    K&N CAI
    Window tint 50% rear/35% front
    FBM CHMSL with Strobe mod 7/1/12
    DR Deep Aluminum Trans Pan
    Sparta FOMOCO Racing 8.8 Girdle
    Mo's Dyno Tune
    Gorilla Nuts - The System
    Ford Racing 4.10s, 31 spline Cobra carrier & axles 7/1/12
    Powder Coat Axle Housing 7/1/12
    CME HP Rear Control Arms & Watts Link 7/1/12
    ______________________________ ________________

    Rex "SC Cheesehead" Weinbender 11-14-13
    Ed "Baaad GN" Linthicum 8-6-2014

  14. #14
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    The diver side


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  15. #15
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    Quote Originally Posted by Mook4949 View Post
    The diver side


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    IIRC that is the PCM one. Let others confirm as it’s been awhile.


    Sent from my iPhone using Tapatalk Pro
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

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