no heat at idle

Mike Arman Armanmik at earthlink.net
Mon Dec 5 22:04:40 EST 2005


> "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!




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