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Originally Posted by littledave
any help woud be appreciated, 95 caraan, limited heat, changed red, thermo, water pump, flushed heater core and only heat I get is when reving vehicle, when I am on the highway cool air, i would like to check damper doors but not sure of procedure, any guidance would help
thanks
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I have a similar problem with my 89 Caravan 3L.I had the motor running and very care fully looseneed one of the hoses going to the heater core.There was coolant .OK. Then I tightened this hise and went on to the other and there was coolant hee too, BUT the flow was very limited but on accelerating this flow was alittle more.I stopped the engine released the pressure in the radiator by taling off the rad cap.Removed both the hoses and blew air through the heater core.Everythis good so far.Traced the hose to the block that supplies the water to the heater and found a lot of crap there. Shoved a hanger in to the block (Pipe) and alot of crap came out.Replaced the hose and the heater works better. Worth trying!!