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Heater Problems

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Old December 10th, 2008, 2:11 PM
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Default Heater Problems

I have a 2000 Extened Cab. Silverado. It takes about 30 min of driving time for the heater to start blowing luke warm air. The temp gauge shows just under 210. Was wondering if anyone had any ideas what might be causing this problem. I changed the thermostat last spring. Thanks in advance from a freezing Fire Fighter.
Old December 10th, 2008, 4:13 PM
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Default RE: Heater Problems

Is your antifreeze still good? It may be possible that the lines are freezing and it take that long to unfreeze and get heat to you in the cab.
Old December 11th, 2008, 9:19 AM
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Default RE: Heater Problems

It should be all new antifreeze when thermostat was changed. Going to flush the system this evening. just to be on the safe side.
Old December 11th, 2008, 12:37 PM
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Default RE: Heater Problems

hey, whats up freezing fire fighter,
I have the same problem that i am tring to figure out (2000 Chevy Silverado Ext. Cab 5.3l NO heat and the ac blows me out of the truck). Had aguy told me that he had a problem with the the vaccum hose was dry rot and leaking in his dash and that his check engine light came on and went off every now and then do to vaccum leak and that his gas milage was cut to 14-15 mpg.His fix was change the vaccum hose. so thats what im going to do this weekend, find thebad hose. but first im going to disconect the hoses and make shur that the core is not blocked.
Keepin touch.
frozzzen in SW LA.

Old December 11th, 2008, 6:25 PM
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Default RE: Heater Problems

Change your thermostat again
Old December 12th, 2008, 8:51 AM
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Default RE: Heater Problems

Flushed the radiator and the heater core last night. Got up this morning had heat within 5 min of starting truck. Drove 15 miles to work had to turn off heater it was driving me out of the truck. The antifreeze in the core was real thick. but tink the problem is solved. Now on to the transfer case and the A/C.
Old December 12th, 2008, 9:02 AM
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Default RE: Heater Problems

Thanks for all the help.
Old December 12th, 2008, 10:41 AM
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Default RE: Heater Problems

Life is good with heat.
Flushed my core out also lastnight and was punching the sky because thethought of getting into the trucks dash turned my stomach. Think Im going to keepit now.
LTZ's sweet but mine is paid for and now has heat again. SWEET!!!!!!!
Burned up by truck heater in SW LA.
Mine was also thick!
Old December 12th, 2008, 11:16 PM
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Default RE: Heater Problems

Hey I am having the same problem with my 98 silverado. It takes me about 15 minutes after it warms up. Also when I have the heat off it pumps out heat pretty good still heating up the truck. Kinda feels like it is seeping through the engine but the engine is not overheating. AC works beautifully though. MCFD625, did you have that same problem when the heat was off? Any help would be appreciated.

Old December 13th, 2008, 12:00 AM
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Default RE: Heater Problems

Hey guys i have a 1990 silverado with the good old 5.7 350 and im having somewhat the same problem, the truck wont put out any hot air and i only get luke warm air about 45 minutes of constant driving AFTER i let the truck "warm up". Only difference with my situation is that my oil also looks like its getting some thick greyish gunk in it and i just had it changed?!?!?! The temp gauge in the dash reads normal but it fluctuates when it feels like it and im thinking what the hell is going on here??? I checked the antifreeze and its still full, and i also just had it changed..... Im not completly ignorant when it comes to stuff like this, but this one's got me stumped...... Any help would be appreciated..... thanks..... soldotnadude


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