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Old 07-24-2005, 03:40 AM   #1
tomatocity
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Heater Hose

Are there two different sizes on the same truck? NAPA shows .625" and .750". Any idea is a good idea.
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Old 07-24-2005, 06:10 AM   #2
Fred T
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Usually 5' of each is enough to get the job done.
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Old 07-24-2005, 07:43 AM   #3
70GMCer
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5/8" and 3/4" is what's on mine......that is the correct size......
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Old 07-24-2005, 08:52 AM   #4
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5' is enough, but in autozone's case it was cheeper to buy bags @ 6'/bag then it was to buy 5' off the roll
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Old 07-24-2005, 05:25 PM   #5
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Quote:
Originally Posted by 70GMCer
5/8" and 3/4" is what's on mine......that is the correct size......
Where is the 5/8" and 3/4" used?
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Old 07-24-2005, 05:48 PM   #6
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from the heater core to the intake and from the heater core to the water pump or rad.
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Old 07-24-2005, 06:02 PM   #7
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I have AC. Which size hose goes where?
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Old 07-24-2005, 07:49 PM   #8
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If you look you will two different sizes of fittings.
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Old 07-24-2005, 08:41 PM   #9
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The engine should have a 5/8 fitting coming out of the intake, the hose would go to the 5/8 neck on the heater (probably the lower one if the heater core is not in upside down) then the remaining neck on the heater should be 3/4 which would run into the water pump or radiator with a 3/4 fitting.
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Old 07-25-2005, 12:56 AM   #10
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Thanks everyone. Now I have enough info to not screw it up.
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Old 08-04-2005, 06:02 AM   #11
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Quote:
Originally Posted by tomatocity
...Now I have enough info to not screw it up.
If only I could get to that point...


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