My 95 civic had the same problem...turns out it was a bad head gasket.
Good luck!
P.S.check your coolant if it goes down without any leaks it might be your
head gasket.
"Jason" <Jason@nospam.com> wrote in message
news:Jason-2504040828440001@pm5-broad-84.snlo.dialup.fix.net...
> In article <HnGic.2469$pE3.2459@news02.roc.ny>, "Dave M."
> <gadget@frontiernet.net> wrote:
>
> > If anyone is willing to give me an idea about this, since it is not a
> > "Honda"... I have an Acura RSX-S with a heater problem.
> >
> > I can let the engine warm-up to operating temperature (the temperature
gauge
> > registers 1/3 deflecting as it always did)and I get no heat at the
highest
> > temperature setting, manual or auto. When I drive off, I get lots of
heat.
> >
> > Is my water pump impeller damaged? My dealer says it could be a valve.
The
> > coolant level is at the top.
> >
> > Any ideas?
> >
> > Thanks,
> >
> > Dave M.
>
> I agree that it is a valve problem. You should also open the hood while
> the engine is running to see if you see any coolant coming from the water
> pump or any hoses--especially the heater hoses.
>
> Jason
>
> --
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>
>