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Re: [Shop-talk] trucks a/c

To: "Tim" <>, "Shop Talk" <>
Subject: Re: [Shop-talk] trucks a/c
From: "Eric J Russell" <>
Date: Thu, 27 May 2010 17:34:06 -0400
One thing I have not seen mentioned is whether the A/C blows through or is 
otherwise associated with the heater core. Is the heater really 'off'?

On my '99 F250 I installed an aftermarket valve (vacuum operated) to shut 
off all coolant flow through the heater core when the dash control is moved 
to 'max A/C'. Otherwise, coolant always flows through the heater core and 
the A/C is ducted immediately adjacent to the heater core.

Eric Russell
Mebane, NC 
Suggested annual donation  $12.96

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