Results 1 to 16 of 16

Thread: overheating???

  1. #1

    Array
    Status
    Offline
    Join Date
    04-05-2011
    Posts
    49
    Location

    Houma, LA
    Vehicle

    1995 Mitsubishi Mighty Max
    Engine

    4G64

    overheating???

    okay so the waterpump in my 95 2.4 mightymax was leaking out of the front seal,so i changed it and now its overheating,it didnt overheat before except for when the water was low...any ideas??

  2. #2


    Array
    Status
    Offline
    Join Date
    03-21-2011
    Posts
    777
    Location

    WA
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G63-T
    First thing I would do is replace that thermostat. Then check waterpump belt tension. From there I'd look for coolant leaks like any clamps that aren't tight, or that stupid o ring around that pipe.

  3. #3



    Array
    Status
    Offline
    Join Date
    03-26-2011
    Posts
    1,512
    Location

    Vacaville, CA
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G63-T
    Maybe you have an air bubble trapped in the system somewhere, that could make it overheat.

  4. #4

    Array
    Status
    Offline
    Join Date
    04-05-2011
    Posts
    49
    Location

    Houma, LA
    Vehicle

    1995 Mitsubishi Mighty Max
    Engine

    4G64
    Quote Originally Posted by 4doorciv View Post
    First thing I would do is replace that thermostat. Then check waterpump belt tension. From there I'd look for coolant leaks like any clamps that aren't tight, or that stupid o ring around that pipe.
    well,i pulled the t-stat,the belts are tight,and i didnt see any leaks,it holds the water good,just overheats.. how could the o ring make it overheat?
    Quote Originally Posted by DroppedMitsu View Post
    Maybe you have an air bubble trapped in the system somewhere, that could make it overheat.
    how would i go about getting an air bubble out? i tried burping the system but it didnt do anything

  5. #5


    Array
    Status
    Offline
    Join Date
    03-21-2011
    Posts
    777
    Location

    WA
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G63-T
    The o ring was an example of a place to look for leaks.

  6. #6

    Array
    Status
    Offline
    Join Date
    04-05-2011
    Posts
    49
    Location

    Houma, LA
    Vehicle

    1995 Mitsubishi Mighty Max
    Engine

    4G64
    Quote Originally Posted by 4doorciv View Post
    The o ring was an example of a place to look for leaks.
    oh lol cause when i changed the pump i left the old o ring cause i didnt realize that i had a new one,but it doesnt leak..

    also,instead of the gasket i used permatex,think i coulde accidently covered up anything that wouldnt let the water flow right?? before i have to go pull the truck all apart again just to see if thats possible

  7. #7


    Array
    Status
    Offline
    Join Date
    03-21-2011
    Posts
    777
    Location

    WA
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G63-T
    On that note, the new gasket only covers the perimetor of the water pump. Bit the entire thing. How much did you put on?

  8. #8

    Array
    Status
    Offline
    Join Date
    04-06-2011
    Posts
    445
    Location

    Jacksonville, FL
    Vehicle

    1990 Mitsubishi Mighty Max
    Engine

    G54B-T
    Make sure your radiator isnt clogged. With the truck up to temperature use your hand to feel the air coming across the radiator....Dont get hit by the fan!. You should feel warm-hot air being blown by the fan. If the fan clutch is just free spinning you might not be getting enough air to cool the radiator.

  9. #9


    Array
    Status
    Offline
    Join Date
    03-26-2011
    Posts
    678
    Location

    Stafford, VA
    Vehicle

    1995 Mitsubishi Mighty Max
    Engine

    Chevy V8
    all the above is about all i could think of as i was reading.

    good luck and keep us posted on progress in solving this issue

  10. #10

    Array
    Status
    Offline
    Join Date
    04-05-2011
    Posts
    49
    Location

    Houma, LA
    Vehicle

    1995 Mitsubishi Mighty Max
    Engine

    4G64
    Quote Originally Posted by 4doorciv View Post
    On that note, the new gasket only covers the perimetor of the water pump. Bit the entire thing. How much did you put on?
    i covered only what the gasket covered
    Quote Originally Posted by crvtec90 View Post
    Make sure your radiator isnt clogged. With the truck up to temperature use your hand to feel the air coming across the radiator....Dont get hit by the fan!. You should feel warm-hot air being blown by the fan. If the fan clutch is just free spinning you might not be getting enough air to cool the radiator.
    ill try that in the morning,also it seems that when the truck starts getting warm the water in the radiator stops moving

  11. #11


    Array
    Status
    Offline
    Join Date
    03-21-2011
    Posts
    777
    Location

    WA
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G63-T
    I'm not sure what else if it's not a leak or thermostat or bubble.

  12. #12

    Array
    Status
    Offline
    Join Date
    03-26-2011
    Posts
    22
    Location

    Nashville, TN
    Vehicle

    1983 Dodge Power Ram 50
    Engine

    G63B
    Maybe you reinstalled the thermostat upside down.

  13. #13


    Array
    Status
    Offline
    Join Date
    03-26-2011
    Posts
    678
    Location

    Stafford, VA
    Vehicle

    1995 Mitsubishi Mighty Max
    Engine

    Chevy V8
    Quote Originally Posted by Ramit View Post
    Maybe you reinstalled the thermostat upside down.
    i have done that before....epic fail on my behalf....

  14. #14


    Array
    Status
    Offline
    Join Date
    03-21-2011
    Posts
    777
    Location

    WA
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G63-T
    That could be the case. He did say that he pulled the t-stat. I guess it means it doesn't have one?

  15. #15


    Array
    Status
    Offline
    Join Date
    03-26-2011
    Posts
    678
    Location

    Stafford, VA
    Vehicle

    1995 Mitsubishi Mighty Max
    Engine

    Chevy V8
    i took it as it was removed...he should tune in soon and let us know...

  16. #16

    Array
    Status
    Offline
    Join Date
    03-26-2011
    Posts
    106
    Location

    Fort Lewis, WA
    did you flush the coolant system when you replaced the water pump? you need to any time you change the pump. You might have jarred loose some old crud, cause of the new Pump, and its now clogging something. First thing I would do is get the truck up to operating temp, check your hoses by squeezing them and feel for coolant running through them. Im assuming you removed the T Stat completely? kinda what it sounded like, I would definetly get a mid temp one and put it back in. Another thing that can cause overheating is a blown Head Gasket, do you have any inter mixing of fluids? Oil in water or water in the oil?

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •