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10-01-2006, 09:05 PM | #1 | |
AF Newbie
Join Date: Oct 2006
Location: cleveland, Ohio
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little or no heat
1998 Chevy Blazer 4WD
85k miles I have little to no heat from the heating system, even with a warm engine temp. The air is almost room temperature, maybe a few degrees higher, but it's pretty useless at a heating sorce. Bad heater core? If so, is this year/model one that requires the dash to be removed to replace it? |
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10-01-2006, 09:25 PM | #2 | |
AF Regular
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Location: marion, North Carolina
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Re: little or no heat
First try back flushing your heater core. Take both hoses off and take a hose and run water from the top hole back. Do this for a while then flush the other way then back again.
Could be your Tstat Could be your Rad cap do you still have the GM cap on it, throw it away. Could be air trapped in your heater core see how to about burping your system.
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'99 Blazer LT Loaded, K&N Filter, Pioneer Super Tuner,Viper '98 Pontiac Grand Prix GT, 3.8 '88 K1500 Cheyenne, 5.0, stock, bought new '86 Nissan 720 Trash Truck '69 C/10 step side, 307, all original, second owner, in process of restore. The person who says it cannot be done should not interrurt the person doing it. Share your knowledge. It is a way to achieve immortality. Allen- Paintman Wrenchtwister Broompusher |
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10-02-2006, 11:53 AM | #3 | |
AF Newbie
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Re: little or no heat
I'd be willing to bet on the dexicool problem. Take off your heater hoses and flush the heater core with a garden hose. Put it back together and see if you get heat. If you do, you probably need to flush the entire system to get rid of the dexicool, its worthless. I think I've flushed my system 4 times now, and I still have radiator problems.
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10-02-2006, 11:56 AM | #4 | |
AF Regular
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Re: little or no heat
Yep I only run the green stuff in mine.
__________________
'99 Blazer LT Loaded, K&N Filter, Pioneer Super Tuner,Viper '98 Pontiac Grand Prix GT, 3.8 '88 K1500 Cheyenne, 5.0, stock, bought new '86 Nissan 720 Trash Truck '69 C/10 step side, 307, all original, second owner, in process of restore. The person who says it cannot be done should not interrurt the person doing it. Share your knowledge. It is a way to achieve immortality. Allen- Paintman Wrenchtwister Broompusher |
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10-02-2006, 02:55 PM | #5 | ||
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Re: little or no heat
Quote:
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10-02-2006, 03:01 PM | #6 | ||
AF Regular
Join Date: Oct 2004
Location: marion, North Carolina
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Re: little or no heat
Quote:
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'99 Blazer LT Loaded, K&N Filter, Pioneer Super Tuner,Viper '98 Pontiac Grand Prix GT, 3.8 '88 K1500 Cheyenne, 5.0, stock, bought new '86 Nissan 720 Trash Truck '69 C/10 step side, 307, all original, second owner, in process of restore. The person who says it cannot be done should not interrurt the person doing it. Share your knowledge. It is a way to achieve immortality. Allen- Paintman Wrenchtwister Broompusher |
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