no heat at idle

[John Sherrow]

Why does it warm as I drive?

----- Original Message ----- 
From: "Mike Arman" <Armanmik at earthlink.net>
To: <quattro at audifans.com>; "John Sherrow" <jsherrow at verizon.net>
Sent: Monday, December 05, 2005 10:01 PM
Subject: no heat at idle


> > "John Sherrow" <jsherrow at verizon.net>
> > Subject: Re: No heat in my 5ktq (in my car at idle)
> >
> > I've noticed on my car now that its winter. At idle (when stopped at a
> > light) the cabin temperature cools considerably. Cool air is coming from
the
> > vents. Once I start driving heat returns. Does this make sense to
anyone?
>
>
>
> Sure does . . . take out the climate controller box just forward of the
> glove box, open it up, and I'll betcha a dime one or more of the vacuum
> hoses is off or split, or the little in-line filter cannister is broken
> open. Also check the vacuum line to the heater valve (front side of the
> firewall, directly behind the engine), and at the top of the heater box
> where it dives inside - there's a small Tee fitting there, and it is
> possible one of the hoses has come off.
>
> What's going on is that there is a vacuum leak somewhere - the heater
> flaps and valves are vacuum controlled . . . and I think you can figure
> this out from here . . .
>
> Best Regards,
>
> Mike Arman
> 90 V8Q
> It isn't a car, its an ADVENTURE!
>
>