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Old 01-03-2011, 05:56 AM
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Bryan59EC Bryan59EC is offline
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A lot of vehicles shut the heater flow off when not actually wnating heat.
Prety sure all AC cars do this.

If there is no valve hooked up the the heater core to shut off the water flow, a bypass should not be needed.

Not having a bypass can create some strange temp patterns util the car fully warms up-----even if there are a couple of holes drilled into the t-stat.
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