I have a car that everything works fine. when i turn on my heater, however, the heat is warm instead of hot like it used to be back last winter. the air conditioner works fine and all the speeds (ie. 1,2,3,4) work fine as well as all the setting (ie. legs, face etc)
2006-12-05 11:39:39 · 10 answers · asked by rlautorepair@sbcglobal.net 1 in Cars & Transportation ➔ Maintenance & Repairs
I changed the thermostat already and flushed and still no luck.
2006-12-05 11:48:58 · update #1
The first hing to check is the radiator coolant level. If the level gets low, the heater is the first thing you notice is wrong. If the coolant level gets too low, the engine will overheat. If the coolant level is normal, the next thing to check is the temperature Gage on the instrument panel. If it reads low, the thermostat is probably stuck partially open. If engine coolant level and temperature is normal, look for an obstruction in the incoming air to the heater. If air comes out and is just warm, you most probably have a partially stopped up heater core. Most garages can back flush the heater core to get it working right again. If you need the heater core replaced, go to the bank and get a hand full of cash, you'll need it to pay for the replacement of the heater core.
2006-12-05 11:50:22 · answer #1 · answered by notadeadbeat 5 · 1⤊ 0⤋
A car's heater works by running hot water from the engine's cooling system through a small radiator inside the dash board. This radiator is called a heater core. Air is then forced over the heater core by the blower fan. The air flow is controlled by a temperature blend door that directs air over the heater core or around the heater core, depending on the temperature selected. This blending of warm and cool air is how you control the temperature.
There are two potential causes to a lack of heat complaint. Either there is insufficient hot water passing through the heater core or the temperature blend door has malfunctioned in a way that directs most of the air around the heater core rather than over it.
By far, the most common cause is lack of hot water passing through the core. Some vehicles use a valve that may be stuck closed restricting water flow. The heater core may be partially plugged by debris.
To know if your heater is working properly, a fully warmed up vehicle should be able to blow out heat in the passenger compartment at 140 degrees at the duct outlet.
2006-12-05 11:58:29 · answer #2 · answered by superschupp 3 · 0⤊ 0⤋
A simple test to try with anti freeze coolant at the correct level and after you know the radiator is hot, is to feel the the inlet and out let hoses at the heater core nipples. If both feel the same hot temperature, then the problem is on the dash side. If not, check for a radiator cap not holding pressure, a heater control valve on the heater inlet hose side (should be in open position), or a partially blocked heater core.
2006-12-05 12:13:47 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Oh good answer Some Dude. If you have no loss of coolant, no white smoke from your exhaust, you either are drawing cool air from outside in, drawing an insufficient amount of air in, or your heater core is clogged. Have you checked to see if your heater unit is passing fluid? I had a 99 Volvo that had a shut off valve, once after having the AC recharged the mechanic shut it off. Of course it wasn't until the next winter and i had no heat that i discovered this.
2006-12-05 12:00:00 · answer #4 · answered by Dr-G 2 · 0⤊ 0⤋
Did you put the right thermostat in? Some people put 180s in to make the engine run cooler, but most fuel injected engines need 195s. The temp gauge in a lot of cars will normally read 210 with the right thermostat.
2006-12-05 12:04:45 · answer #5 · answered by Nomadd 7 · 0⤊ 0⤋
It could be the thermostat requires replacement or the entire system needs a good flushing!
2006-12-05 11:45:13 · answer #6 · answered by Brian H 4 · 1⤊ 0⤋
Sounds to me like the antifreeze wasn't solid adequate and for this reason you've frozen up. Plug it in, restore the antifreeze situation and also you have to be good...assuming you're using a extra moderen motorcar that has a extra versatile block than an older motorcar. If that's an older motorcar you've gotten cracked the block and then you've were given somewhat extra worry on your palms.
2016-10-16 11:58:48 · answer #7 · answered by uday 4 · 0⤊ 0⤋
Perhaps the ducting has come loose, allowing outside air to mix with the heated air.
2006-12-05 11:51:40 · answer #8 · answered by Anonymous · 0⤊ 0⤋
I would have to say your thermostat is stuck open.
2006-12-05 11:48:23 · answer #9 · answered by Anonymous · 0⤊ 0⤋
It means that you have a bad mix of antifreeze you should change it
2006-12-05 11:55:45 · answer #10 · answered by ashlandtree 3 · 0⤊ 0⤋