Idiforlife
Full Access Member
I started to you use my heat about two weeks ago 85 6.9 Truck heats up very fast I would say about 5 city blocks i can feel some warmth. If idling it warms up good in 10 min . Gauge is at the A in Normal lower hose cool to touch top hose Hard and Hot. So i replace Thermostat (motorcraft) , Radiator champion Aluminum has 16 lb cap , flushed and back flushed heater core , Freed the bleed ball, Fan spins freely, .Now i am still getting fast heat in cab, and gauge reading high after 10 -15 min of driving . From cold start she pushes water out slowly (cap off) If i press gas it sucks down let off of gas it comes up. and gauge reading warm , heat blowing warm Fluid in radiator is cold no air bubbles coming out and no circulation going on in radiator. If i put Cap on The top hose sucks in when i give it gas. I tested both thermostats and they opened in boiling water. What should i test try next?????
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