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no heat with new thermostat

Discussion in '1st Gen. Tacomas (1995-2004)' started by ramsey50, Dec 17, 2010.

  1. Dec 17, 2010 at 7:34 PM
    #1
    ramsey50

    ramsey50 [OP] New Member

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    I have a 97 tacoma with a 2.7l in it.I am having a problem getting heat in the cab.I replaced the thermostat today and coolant levels are good but the radiator on the drivers side stays cool unless you put a piece of card board in front of the radiator.also i get a whiff of antifreeze from time to time.does anybody have any suggestions. thanks
     
  2. Dec 18, 2010 at 8:10 PM
    #2
    2531

    2531 Member

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    run system with rad cap off for a while with heater on after installing thermostat, to bleed all the air out. Feel the temperature of your heater hoses near the firewall when engine warmed up to normal operating temperature. If both fairly hot, you should get heat, if one hot, one quite a bit cooler, you have a flow problem. That could be a valve not opening, core plugged, weak water pump, for examples. if all that checks out good, then I'd be checking my blend/air door for movement
     
  3. Dec 19, 2010 at 4:55 PM
    #3
    98Tacoma

    98Tacoma Well-Known Member

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    like 2531 said run it without the rad cap and turn on the heat full blast sometimes that will push some air pockets out of it. you can also burp the system by lifting the front of the truck up and doing the same thing. hope this helps
     
  4. Dec 20, 2010 at 3:00 PM
    #4
    ramsey50

    ramsey50 [OP] New Member

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    i tried running it till normal operating temp with the radiator cap off but didnt get any air pockets to come out.on my heater core hoses one of them was quiet a bit cooler than the other so i took my hoses off and ran water through my heater core and there was some brown and milky stuff came out so i will find out tomm if that worked.also how much pressure should the water pump have.to me it seems weak because when you squeeze the radiator hoses and rev the motor it doesnt seem to have a hole lot of pressure. thanks for the tips though
     
  5. Dec 20, 2010 at 3:04 PM
    #5
    BSPDX

    BSPDX Well-Known Member

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    make sure you installed the tstat in the right direction.
     
  6. Dec 20, 2010 at 3:12 PM
    #6
    twfsa

    twfsa Well-Known Member

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    Was there heat before you F**ked with it?
     
  7. Dec 20, 2010 at 6:37 PM
    #7
    98Tacoma

    98Tacoma Well-Known Member

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    does you radiator have the same gunk in it to? my dads radiator is like that now and he will have heat on and off because it has restricted flow
     
  8. Dec 23, 2010 at 11:56 AM
    #8
    ramsey50

    ramsey50 [OP] New Member

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    i have heat now and why would i mess with it if i had heat.but it turns out needing a hole coolant system flushing.i have just had the truck since the end of november and its my first tacoma.is the heat in the tacomas pretty weak i read that on another forum on here.
     
  9. Dec 23, 2010 at 11:58 AM
    #9
    BSPDX

    BSPDX Well-Known Member

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    What temp of tstat did you put in?? That will determine how good your heat is... Mine is hotter than hell on full blast!
     
  10. Dec 23, 2010 at 3:14 PM
    #10
    Flash1034

    Flash1034 Well-Known Member

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    Mu guess is you installed the t stat backwards.

    Flash
     
  11. Dec 23, 2010 at 6:44 PM
    #11
    Digiratus

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