Because it's not getting any hot water.
Undo the hoses and wash the core out. Make certain water will flow through it.
Then check the water control valve and see its not blocked with muck - a technical term - and it opens and that the return pipe to the engine is clear as well.
If you want to be really certain leave the return pipe off and start the engine with the heater on full. Water should flow freely from the core.
Then check the fan runs when it is switched on by putting your hand on it and feeling that it vibrates.
RoyS.
2006-11-01 05:24:04
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answer #1
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answered by Anonymous
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There might be an airlock in the system or the valves not working trace both heater pipes and feel if they are warm after the engine has run for half an hr. Some cars have a bleed screw on the pipes where they go into the bulkhead. If you suspect the heater may be blocked take off both pipes to the heater and connect a hose to it and flush it out do it several times first putting the water through one way then the other. reconnect the pipes and try again trying to bleed all the air out with bleed screws or taking one of the pipes off while running the engine also make sure your fan is working
2006-11-01 06:14:17
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answer #2
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answered by rocky 3
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ok the heater blowing chilly skill that there is no longer sufficient coolant to get to the heater center. some exams can inform you what the reason being. The in all probability motives for that are a undesirable head gasket, a cracked head, or the cooling equipment is plenty too low on coolant for another reason. perchance in basic terms the thermostat, yet in all probability no longer basically that. Your vehicle is old sufficient for the top gasket to have long gone undesirable. if it relatively is basically thank you to low, you will possibly be able to be sure this is serviced wisely. in case you have the vehicle chilly, and do away with the radiator cap, fill it with coolant,and start up it up. If the point is going down, sturdy. element sare working good.you need to be waiting to have the radiator very practically finished and as much as popular temperatures, with out all of it blowing out. If coolant starts off to "boil" out while this is chilly, then you definately've a leak from a cylinder to the cooling jacket that we could combustion gases pressurize the colling equipment and fills the precise of the cooling equipment with "air" that blows the coolant out and the area is crammed with steam, battling appropriate cooling and heater equipment operation.
2016-11-26 22:02:22
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answer #3
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answered by ? 4
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Take water temperature in the radiator after running the car for some distance. There will be temperature gauge on the dash board. If it shows that radiator water is getting heated up, the only possibility is that tube/pipes which draw radiator water for heating the air r choked. Clean/replace them.
2006-11-01 04:52:42
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answer #4
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answered by Anonymous
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Take it to the garage, sounds like the heater core has gone
2006-11-01 04:44:45
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answer #5
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answered by simonbeever2000 3
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is the car a fiat? specifically cinquiciento??
i had one which did this, its an inherent fault in the cooling system which in turn affected the heating
2006-11-01 04:47:23
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answer #6
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answered by Anonymous
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lack of water in the radiater top it up
or the va to free it
lve is stuck open and close many times
2006-11-01 04:45:42
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answer #7
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answered by jasmrock 2
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your car heater needs hot water from the radiatior and it goes threw a heater core that heets it so that you have hot air .it sounds like you need a new one heater core good luck.
2006-11-01 04:49:15
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answer #8
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answered by macki4 4
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Could be the thermostat, could even be engine coolant levels.
Take it to a garage, should be fairly simple to diagnose.
2006-11-01 04:50:45
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answer #9
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answered by p_rutherford2003 5
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No, I bet its a Ford, Ford heaters only work in the sumer time
2006-11-01 07:58:16
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answer #10
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answered by Lots of money but no sense 2
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