I have a bone stock '91 CRX HF and this winter I had no heat. It sucked here in Chicago. With today being one of the only nice days so far, I decided to do some investigating. I let the car run for 15 minutes, felt the lower radiator hose, and it was cold. The upper was warm. Then I took it for a spirited 10 minute cruise around the block and tried again.
The lower hose was still cold and the upper was hot. What would cause that? A blocked heater core? I dunno. Help me out.
TIA
-Steve

 

thats normal my lower hose is always cold and my upper hot as for the heat check the heater valve under your intake(has a lever on it w/ cabble going into firewall)

 

What am I checking it for? Just to make sure that it is attached and still moves when I turn the **** in the cabin?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SuperSteve737 &raquo;</TD></TR><TR><TD CLASS="quote">What am I checking it for? Just to make sure that it is attached and still moves when I turn the **** in the cabin?</TD></TR></TABLE>

Yea, mine has dissconnected a few times behind the ****. Pain in the ***!!

 

ya check it out buy turning in side and out side if it works good then take it out of the car and check it that way if all is good take off other heater core hose and flush out the core also the check if BOTH fans are on there ius a lever under the pass side dash in the center of the car

 

Well, it's dark here in Chicago now, so I'll have to check it out later. Thanks 88 and spork.

 

could be your thermostat stuck closed

youll find out really quick if you car starts to run hot/overheat now that spring is here.

 

I forgot, but I did a little test about 2 weeks ago when I was picking up my fiancee from the train station.
I was 45 minutes early, so I just chilled in the car. I left in running so I could listen to the radio and was playing with the temp ****. The temperature of the air coming out of the vents didn't change, so I'm assuming that the cable from the **** came off.
I am just confused because there is still tension when I turn the ****. Oh well, next nice day, time to rip apart a center console.

 

thats because there is two levers on the **** one for the piece under the hood and the other for the blower motor where the heater core in the car

 

Gotcha. Thanks a ton, buddy.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SuperSteve737 &raquo;</TD></TR><TR><TD CLASS="quote">
Gotcha. Thanks a ton, buddy. </TD></TR></TABLE>