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Old 12-29-2008, 04:54 PM   #1
pat66
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Baby it's cold outside

Any help would be greatly apprecated
2002 Blazer 4.3
Flushed radiator today
Engine temp is normal,not overheating
Have no heat or defrost
Fan blowes cold air
If I had hair I would pull it
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Old 12-29-2008, 08:39 PM   #2
corn
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Re: Baby it's cold outside

Flush the heater core. Probably more than once, its a known issue with S10s.
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Old 12-29-2008, 09:14 PM   #3
gchemist
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Re: Baby it's cold outside

Back flush the core. Remove the lines from the system. Use a water hose to flush it really good.

Does it blow air? Check the vacuum line under the hood. The line connects to the vacuum ball.
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Old 01-03-2009, 08:28 AM   #4
68C15
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Re: Baby it's cold outside

Quote:
Originally Posted by corn View Post
flush the heater core. Probably more than once, its a known issue with s10s.
x2
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Old 01-04-2009, 06:15 PM   #5
pat66
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Re: Baby it's cold outside

Thanks all for the input
I flushed for 2 days and it did not help
Installed a new heater core and now have heat
10 hr to install.Can't beleive they made it so hard to get at
Thanks again for yalls help
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Old 01-04-2009, 09:40 PM   #6
Arad68
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Re: Baby it's cold outside

Quote:
Originally Posted by pat66 View Post
Thanks all for the input
I flushed for 2 days and it did not help
Installed a new heater core and now have heat
10 hr to install.Can't beleive they made it so hard to get at
Thanks again for yalls help
Man,
Thats rough. I think I will make flushing mine a regular thing.
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Old 01-04-2009, 10:41 PM   #7
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Re: Baby it's cold outside

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Man,
Thats rough. I think I will make flushing mine a regular thing.
A good flush never hurt anyone!
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Old 01-05-2009, 03:57 AM   #8
gchemist
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Re: Baby it's cold outside

I converted mine to yellow stuff.
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Old 01-05-2009, 06:54 AM   #9
68C15
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Re: Baby it's cold outside

dontcha just love dexcool?

I hope you didnt put a long screw in the hole behind the blower resistor. if so you will be stuck on hot and possibly ruin a door actuator.
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Old 01-09-2009, 12:11 AM   #10
454_72_4X4
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Re: Baby it's cold outside

Quote:
Originally Posted by 68C15 View Post
dontcha just love dexcool?

I hope you didnt put a long screw in the hole behind the blower resistor. if so you will be stuck on hot and possibly ruin a door actuator.
That sounds like the voice of experience...
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