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Ok this is probably something simple. When I have my heat on, and Im driving down the road my heater whistles like a teapot. While driving if I turn the heat up the teapot noise increases. If I am stopped it still stays, but isnt as loud. Once my truck is warmed up it just disappears.
I remember reading somewhere about a TSB for something along these lines, like cold feet, and needing to replace a gasket in the firewall around the heater core, or the heater fan. Its definitely sounds like a slight air leak, whatcha think?
Bill
I remember reading somewhere about a TSB for something along these lines, like cold feet, and needing to replace a gasket in the firewall around the heater core, or the heater fan. Its definitely sounds like a slight air leak, whatcha think?
Bill