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Thread: Running hot

  1. #1
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    Running hot

    My water pump is good have a new thermostat and the temp hand stills go up. Now i dont have know thermostat at all now i delete it car runs fine just stay cold all the time. Can anybody help me out cause i wanna put a thermostat back n
    V7 jt-b vortech s/c

  2. #2
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    Either a bad thermostat, (put it in some boiling water and see if it opens) or your not getting all the air out of the system. Refer to how to "burp" the system. Might be a Sticky or there are many threads on it. Best bet is to Google burping a Mercury Marauder as the search function is difficult to use.

  3. #3
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    Quote Originally Posted by mr. Man View Post
    either a bad thermostat, (put it in some boiling water and see if it opens) or your not getting all the air out of the system. Refer to how to "burp" the system. Might be a sticky or there are many threads on it. Best bet is to google burping a mercury marauder as the search function is difficult to use.
    thermostat is brand new
    V7 jt-b vortech s/c

  4. #4
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    Running hot

    Quote Originally Posted by mr. Man View Post
    either a bad thermostat, (put it in some boiling water and see if it opens) or your not getting all the air out of the system. Refer to how to "burp" the system. Might be a sticky or there are many threads on it. Best bet is to google burping a mercury marauder as the search function is difficult to use.
    thermostat is brand new
    V7 jt-b vortech s/c

  5. #5
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    Make sure it's not in backwards alot of people do this. Also search burp system.
    03 300a. black #1695 of 7839 born 6/20/02.
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    03 300a black #1199
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  6. #6
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    Even though it is brand new there is a chance it could be defective and make sure it is for a Mercury Marauder! Our T-stats are specific.

    +1 on what Mr. Man said!

  7. #7
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    If you don't have a motor craft t'stat I have one for you depending where your at
    Last edited by slickster; 08-07-2012 at 02:24 PM.
    03 300a. black #1695 of 7839 born 6/20/02.
    Adopted 3/31/11. Sold


    03 300a black #1199
    TERMINATOR SWAP
    430rwhp. Done by mo's

  8. #8
    Even brand new thermostats can be bad.

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  9. #9
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    1. New thermostat is in backwards

    2. Burp cooling system

    3. Bad thermostat
    “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




  10. #10
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    NEW stands for Never Even Worked way too frequently nowadays. Drop it in a pan of water stick in a thermometer and see what it does. Also do not rule out a malfunctioning sender or gauge. So before you say that the car is running hot you should either check the temp it is running at with an infrared thermometer pointed at the water tube right before where the hose clamps on or by using a scan tool you can look at live date from the temp sensor.

  11. #11
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    Is your radiator fan working?
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