Question about 2007 Toyota Tacoma
I have a 2000 Tacoma and I'm having problems getting heat out of it. I reaplaced the thermostat and changed the coolant. Still no change. I disconnected the cable to the heater switch on the firewall and opened it wide open by hand, still no change. Any help or insight into possible problems or solutions would be greatly appreciated...
Dale i have same issue with heater when i turn temp dial to heat i can hear the fan but no heat comes out but if i turn to cooler range air starts to blow fine but is not hot and it does not matter what setting is (defrost, dash, or feet setting)
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Posted on Jan 02, 2017
SOURCE: 2005 highlander heater problem
I'm glad I could help. I'm reposting the solution below in case anyone needs it in the future. Please be sure to rate it for me!
Pull the temperature knob off and verify the thin 12mm nut is installed and tight behind it. I have seen several of these loosen up allowing the knob to turn but intermittently have no effect on temperature.
Posted on Sep 11, 2009
When was last flush and thermostat replaced? Also, it may sound crazy but, when I have a partially clogged heater core, which I suspect you do, I usually will disconnect the hose at the heater core, and connect a drill operated pump from hardware store (about $10) to the heater core, and circulate C.L.R through it before putting it all back together. I usually set it up to pump through the core and back into a pail or similar, and then reverse the hoses to allow flow opposite way as well, then I plug lower inlet to core, and fill with C.L.R, and let it sit overnight if I have time, just to clean out as much calcium clogged up in there as I can. Saved me replacing 2 or 3 heater cores so far, that had little or no heat at idle, prior to cleaning, but had good heat after.
Posted on Dec 22, 2009
SOURCE: No heat/defrost 01 corolla
Sounds like you have air trapped in the heater core when you flushed the heater core. loosen the upper most heater core hose and run the engine untill coolant seeps out. Wait until the coolant has reached running temperature.
Posted on Jan 18, 2010
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