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heater relay??

Discussion in '1st Gen. Tacomas (1995-2004)' started by Bartaco, May 21, 2011.

  1. May 21, 2011 at 11:36 PM
    #1
    Bartaco

    Bartaco [OP] Well-Known Member

    Joined:
    Apr 19, 2011
    Member:
    #55221
    Messages:
    102
    Gender:
    Male
    First Name:
    Bill
    Connecticut
    Vehicle:
    Red extra cab 6 cyl with chip,gibson flowma
    Bilstein 5100 series ,uniball uca's,3" lift kit ,extra leaf, Gibson exhaust.limited slip rear, six lug,lock out hubs,K&N air cleaner sysytem
    Im having issues w/my heat still.I have changed the thermostat and coolant,thinking they were bad cuz the lower rad. hose was Ice cold and the
    upper was smokin hot. no help still no heat.the temp guage stays just a hair above the cntr.I pulled the lower cntr console to get a look at the cable and the mixer servo and when i moved the controls on the console (temp and vent) nothing moved.same with the gate valve that sends coolant to the heater core.both lines are hot there(in and out) but nothing moves.is it a fuse? the heater relay? anyone??
     
  2. May 22, 2011 at 9:05 AM
    #2
    EnolaGaia

    EnolaGaia Well-Known Member

    Joined:
    Sep 9, 2006
    Member:
    #9
    Messages:
    1,129
    Gender:
    Male
    Midwest USA
    Vehicle:
    '01 & '04 S-Runners
    01 SR: Double Cab conversion, S/C, lowered.
    Is the blower fan working?

    There's a 50A HEATER fuse and a heater relay in the engine bay fuse / relay box. These seem to be involved with the blower, not the air mix or other functions.

    However ... If the dash controls don't cause anything to happen, it's more likely to be a fault with the electricals (A/C control circuit panel behind the dash controls), or maybe a wiring fault somewhere.
     
  3. May 22, 2011 at 4:08 PM
    #3
    Bartaco

    Bartaco [OP] Well-Known Member

    Joined:
    Apr 19, 2011
    Member:
    #55221
    Messages:
    102
    Gender:
    Male
    First Name:
    Bill
    Connecticut
    Vehicle:
    Red extra cab 6 cyl with chip,gibson flowma
    Bilstein 5100 series ,uniball uca's,3" lift kit ,extra leaf, Gibson exhaust.limited slip rear, six lug,lock out hubs,K&N air cleaner sysytem
    yeah the blower works but not great. the truck is kinda tired 345,000 mi.I got it cheap
    the guy had a efan in it that wasn't working so I pulled it and replaced the OE fan.NOw I'm thinking I need to power somthing up that I took power away from when I took the efan out. did that make any sense? dol you know what those two black boxes uip highg on the firewall are??:confused:
     
  4. May 22, 2011 at 5:18 PM
    #4
    EnolaGaia

    EnolaGaia Well-Known Member

    Joined:
    Sep 9, 2006
    Member:
    #9
    Messages:
    1,129
    Gender:
    Male
    Midwest USA
    Vehicle:
    '01 & '04 S-Runners
    01 SR: Double Cab conversion, S/C, lowered.
    I don't know what black boxes you're referring to ... ??? ...

    Did the dysfunctional electric fan unit have a thermostatic controller? If so, I'm wondering if it was somehow hooked up in a way that might have interfered with the cooling / heater systems. I doubt it; I've never heard of such a thing before.

    Without knowing the details of how the e-fan was wired up, there's no way to tell what might have been messed up by removing it.
     
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