Question about 1998 Chevrolet S-10 Pickup

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1995 S10 p/u no heat

I need to know why i have no heat in my 1995 chevy s10 p/u truck,i replaced the thermostat i still have no heat someone said there is a flap inside might need to be open? could someone help me with the problem.thks

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  • Anonymous Apr 07, 2009

    i have no heat i put a new thermostat in it and i tryed to get the air pockets out but i can take off the heater hose off of the heater core while it is running and i get a very little water flow from the intake hose and no water flow from the water pump heater hose

  • tapanewkeg May 03, 2009

    I had the same problem, I found the heater core clogged with "mud". I CAREFULLY fulshed water through buth heater core hoses, alternately, until the flow increased, and the muddy water turned clear. Be very careful, too much water pressure from the garden hose can blow the heater core apart!



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On these trucks if you have lost coolant in any way its very common to get air pockets in the rediculiously long heater hoses going in and out of heater core. when toping off coolant remove one of the hoses and make sure coolant flows out while someone fills radiator or resivor bottle if no radiator fill is avaliable.once coolant comes out quickly put hose back on and tighten clamp. Doing this will allow the coolant to flow through the engine and not create air pockets. START with that. its kinda like a bleed effect.

before doing all this a way to check if thats your problem feel the heater hoses. if they are not as hot as upper or lower radiator hoses when engine is normal temp.then they have air in them. all hoses should be somewhat hot to the touch. NOT WARM

good luck
ASE certified.

Posted on Feb 09, 2009


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