[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: Defogger flaking out...
> Date: 12 Jan 1993 17:54:41 U
> From: "lis" <firstname.lastname@example.org>
> I've got an '85 5000S with a very strange problem. The windshield defogger only
> seems to work at low RPM's (MPH?). I'm not sure why this happens, but when I
> get over about 50 MPH the windows start fogging up immediately, and when my
> speed drops down they magically defog. Because it's acting like this, I can't
> tell if the compressor is kicking off at a certain RPM, or maybe the A/C clutch
> is slipping at progressively higher RPM's, or if it's something else entirely.
> Any ideas - similar experiences?
> Thanks in advance-
> Larry Spector
Larry, here's a guess at it:
Warm air is used to defog. As speed increases, if a vent was somehow
able to mix cold air from the outside into the warm air stream...?
Maybe one of the heater/vent controls are not working?