Raj,
Getting to the heater core is a huge pain. You have to remove the heater assembly to get to it.
To remove the heater unit you have to disconnect your battery. Drain your coolant. Disconnect the engine to heater core hoses. Remove your front seats, and peel back the carpets. Remove the instrument panel lower covers from both the driver and passenger sides. Remove the left side ventilator duct. Then remove the instrument panel assembly and finally remove the rear heater duct from the floor of the car. Disconnect and label the wire harness connectors. Remove the heater unit mounting fasteners and lift out with the heater control assembly. Removing the radio make this easier.
Now you can see the heater core. This is all per Chilton's.
If you can swing it, take it to Nissan and maybe one of their techs knows an easier way to access your cable. Good Luck
Frank
> > Raj,
> > >
> > > You don't want to be spraying conductible liquids into the electrical
> > > components of your dash.
> > >
> > > The hot-cold lever is attached to a cable that comes out the back of the
> > > temperature controls pod. To reach it you need to remove the console cover
> > > (around the stereo) 4 phillips head screws. Unhook the cigarette lighter
> > > and emergency flasher switches (and your power-comfort switch if you have an
> > > automatic trans) and remove. It pops out from the bottom up with a little
> > > bit of prying.
> > >
> > > Now you can see the temperature controls. I think there are four screws
> > > that hold it down. Once it is removed you can access the cable from behind.
> > > NOW try lubricating it. Check for rust and kinks. If it still won't move
> > > you need to replace the cable.
> > >
> >
> > Very sensible advice, but remember that it can also be the valve in
> > the heater core which is actually frozen and not the cable at all. >
> Thank you for your informative responses. Frank describes how to get
> to the cable. How do I go about checking the valve in the heater core,
> and how hard is it to replace myself?
>
> Once again, thank you for your advise.
>
> Raj.
>