On Sun, 6 Apr 2008 00:13:20 -0700 (PDT), Bob AZ <rwatson767@[EMAIL PROTECTED]
>
wrote:
>On Apr 5, 8:40?pm, mac davis> The heating/AC often decides the
>temperature settings for us... Can go to cool
>> to hot randomly, or cold to hot, if the AC is on...
>> I'm thinking some kind of vacuum thing or something, but have no real
idea what
>> it might be..
>>
>
>Mac
>
>I had this trouble on a Chevy RV chassis. Turned out to be a leaky
>vacuum hose where it went through the firewall. Real skinny hose and
>an even smaller hole in the firewall. Reamed out the hole. put in a
>thick wall gromet and put in a larger hose. Everything was then OK.
>Determined the leak location using a vacuum gauge. Initially bypassed
>the suspect hose with a hose patched around the leak site. Took vacuum
>readings at the vacuum reservoir. A plastic ball about 4" in diameter.
>Under the hood.
>
>Bob AZ
Bob... what was the hose connected to?
mac
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