Heater valve working? Cable slipped? Have someone move the lever at the
dash while you verify min/max movement at the valve.

Christopher Gronski wrote:
> Hi All,
>
> My front heater really does not put out much heat but my rear under seat
> heater generally is putting out enough to heat the van. Any idea why this
> would be happening? The front fan is working, although it does tend to cut
> in and out (depending on whether I've gone over an odd or even number of
> bumps).
>
> Thanks,
> Chris
>
>