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Old 08-23-2010, 01:01 PM   #1
soule64
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Join Date: Feb 2008
Location: Huntsville, AL
Posts: 197
Water Pump Question

I was hoping someone might know off-hand which port is pressure and which is the return on an LS engine water pump. I finally got my AC working this weekend (Vintage Air) - works great at idle, but when under load it starts blowing warm air. My Classic Air did the same thing on the '68 and it ended up being the heater hoses being hooked up wrong. I was thinking this might be the same problem, but before I start spilling fluid everywhere I would ask.

Last edited by soule64; 08-23-2010 at 01:02 PM.
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