95 240sx - Heat not working anymore! It's cold outside! Brrrr!!!

[ned4spd8874]

So, I just got my 240 up and running. It was sitting in the garage for the winter, but my girlfriend crashed her car and she needed to borrow my other car while her's is in the shop.

No biggie, just take the 240 out of winter retirement and we'll be set....wrong!

We drove it last night and found out that the heater is not blowing hot air. It was broken into a few months ago just before I stored it and I have not driven it since so I never really tested the heater after the break in.

The whole center dash was almost torn apart when they stole the stereo. The only wires that appear to be cut are the radio wires.

However, now I know that the heater is not working either as well as half my dash blinking on and off now too from time to time. They were working perfectly before my radio was stolen.

Could some wires been cut that would case this? Could some obscure fuse be blown?

I checked the wiring that I could see, and saw no broken or damaged wires, but I did not take it all the way apart, nor do I feel comfortable doing such a thing.

Help!!!! Any suggestions out there???

[ned4spd8874]

Okay, I did some checking and the control valve under the hood near the firewall appears to be working fine. And the hose that on either end is warm to the touch. That tells me that everything under the hood is working properly and that it's something under the dash, correct?

I checked again, and could find no broken or damaged wires under the dash and behind the middle console.

Could it be just bad timing and the heater core went? It's just hard for me to believe that since it was all working fine before the theft.

Help!

[Acecool]

Make sure the radiator hoses are good..

My upper blew, and I had NO hot air...

[ned4spd8874]

I didn't see any issues with any of the hoses. They all look good are aren't leaking.

[ned4spd8874]

So I checked the hoses and both the top and bottom radiator hoses are warm. Both the coolant hoses going into the firewall are warm. The coolant is topped off. The engine temp stays at the mid-point on the gauge.

Help!

[ned4spd8874]

I think it may be the thermostat.

I took the top off of the radiator, stated the car and let it run for about 10 minutes and the level never really changed. It maybe went down an 1/8", but that's about it.

It doesn't look that hard to change, but how messy would it be? Do I need to drain the fluid? Will a lot leak out when I disconnect the hose??