no heat

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no heat - 7/4/2008 9:16:35 PM    chevy00   Posts: 3 Joined: 7/4/2008 Status: offline I have a 2000 silverado and I am having some trouble with the heat. As long as i keep the blower on 2 or 3 it will blow out heat, if I turn it up any higher the air starts to cool off. The temp is running normal but the radiator hoses are always soft. Is the thermostat stuck open? I need to fix this before wintercomes so any help would be great. Thanks _____________________________ kick the tires and light the fires!!!!!! Post #: 1

RE: no heat - 7/5/2008 7:16:30 AM    shawnvw   Posts: 1259 Joined: 1/18/2008 Status: offline Could be thermostat, but I would be looking closer at the heater core itself. Its probably partially plugged up and needs to be ither flushed, or replaced. It sounds like its not letting enough coolant to flow through at a time and when the blower is in high, it cools the antifreeze completely before it leaves the heater core _____________________________ If you have a question, ask it in the forums. I will no longer be answering questions sent to my email. (in reply to chevy00) Post #: 2

RE: no heat - 7/6/2008 5:58:39 PM    chevy00   Posts: 3 Joined: 7/4/2008 Status: offline Ill try that. As far as the system not building pressure could that be caused buy a plugged heater core? The hoses are always hot but never hard. It did this last summer to one day we put the a/c on and later on that night when we wanted heat there was none but it started working after a few minutes.  Thanks again.  (in reply to shawnvw) Post #: 3

RE: no heat - 7/6/2008 6:39:28 PM    shawnvw   Posts: 1259 Joined: 1/18/2008 Status: offline No pressure is probably the result of a bad rad cap. It is what holds the pressure, and relieves the excess pressure to the overflow bottle _____________________________ If you have a question, ask it in the forums. I will no longer be answering questions sent to my email. (in reply to chevy00) Post #: 4

RE: no heat - 7/7/2008 4:17:17 AM    chevy00   Posts: 3 Joined: 7/4/2008 Status: offline I thought that was my problem to so i replaced the cap and still no pressure. I guess ill just keep tryin and thanks for all the advise. (in reply to chevy00) Post #: 5

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