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heater wont blow hot air?
12-19-2008, 05:27 PM
Post: #1
Sad heater wont blow hot air?
I have a 1998 land rover discovery and my heater will no longer blow warm air out? Is this a heater core prob? fuse prob? Is it something I can do or should I take it in? I was wondering if someone could give me some advice on where to start to try and fix it.
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12-19-2008, 09:31 PM
Post: #2
RE: heater wont blow hot air?
Does the fan work, but does not blow warm or hot air? Or has the fan stopped working? If fan has stopped, look for blown fuses, relays, switch or fan motor. If fan is blowing cool air, check the thermostat to see if it is operating properly. Is the coolant in the radiator full?

Being way2old is why I need help from younger minds.



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12-19-2008, 10:19 PM
Post: #3
RE: heater wont blow hot air?
yeah the fan works, but it just blows cool air. I did change some hoses during the summer so it should have half and half in it. My thermostat seems to guage right on my dash. I guess I could check my radiator level! Would really cold weather maybe freeze up some of my coolant if its half coolant and half water? It was 1 degree last night?

way2old Wrote:Does the fan work, but does not blow warm or hot air? Or has the fan stopped working? If fan has stopped, look for blown fuses, relays, switch or fan motor. If fan is blowing cool air, check the thermostat to see if it is operating properly. Is the coolant in the radiator full?
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12-19-2008, 11:49 PM (This post was last modified: 12-19-2008 11:51 PM by Rupe.)
Post: #4
RE: heater wont blow hot air?
50/50 coolant is good for about -25 degrees provided you didn't buy the stuff that was already pre-mixed. Diluting that again would put you closer to +10 dergees or so.

Recalling the Land Rover engine compartment is rather tight in some areas. Are any of the heater hoses pinched or crimped from a tight bend? That will cut off the flow and give you cold air.
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01-21-2010, 08:36 PM
Post: #5
RE: heater wont blow hot air?
I have had similar issue with a previously owned vehicle and I did a backflush on the coolant system with a kit from Prestone (not fun in cold weather but it fixed my problem.

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