yea so the heat doesnt work in my 90 hatch.

the actuators for the coolant into the heatercore work fine
the fan blower works fine
the valve to the heatercore opens and closes
no coolant leaks, in the engine or around the heatercore

im stumped. winter will be here in a few months and it sucks driving to work with no heat for 45 min

 

the valve in the engine bay operates properly? check the hoses before and after it see if they are the same temp.

 

there a valve under the dash that the cable that opens when u turn it. my cable was broke so u could turn the nobble on the dash and nothn but once i turn the valve under the dash heat worked perfect

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by si90rex &raquo;</TD></TR><TR><TD CLASS="quote">there a valve under the dash that the cable that opens when u turn it. my cable was broke so u could turn the nobble on the dash and nothn but once i turn the valve under the dash heat worked perfect</TD></TR></TABLE>

under the dash or like right behind the turn ****. i did a dash swap and had the whole thing out. it seemed that it was doing ok, like when i turn the dial to hot it opens the valve in the engine bay by the firewall

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">

under the dash or like right behind the turn ****. i did a dash swap and had the whole thing out. it seemed that it was doing ok, like when i turn the dial to hot it opens the valve in the engine bay by the firewall</TD></TR></TABLE>
under the dash in the middle of the car there a plastic thing u can turn it to shut off the heat. it control how much hot air pasts throw the vents for climate control it close to the floor right behind the cig lighter but back towards the firewall.

 

yup. crawl into the passenger floor and stick your head underneath the heater core. reach up and turn the ****. youll see a white lever and two cables. they should move together. its likely they are not if youre not getting hot air and you checked everything else.

 

make sure the damper in the heater core is working. also make sure the piping to and from the heater core isn't clogged.

 

hey thanks guys, good stuff. i didnt know there was more stuff that moves down by the heatercore. i think ill check it out

 

is th ecoolant line... (chekc both) hot going to the firewall? check before and after the valve.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by si90rex &raquo;</TD></TR><TR><TD CLASS="quote">there a valve under the dash that the cable that opens when u turn it. my cable was broke so u could turn the nobble on the dash and nothn but once i turn the valve under the dash heat worked perfect</TD></TR></TABLE>

!

this is exactly what was up. i didnt know there was a cable tucked up there, it was off the little white lever thing so i put it back on and bam! heat! thanks a ton dude now i dont have to get a new car for the winter

 

CAN SOMEONE HELP ME FIND THIS CABLE!!!

My car has no HEAT

 

Best way is to just get under there and look. The **** has been stripped on my CRX for 2 years, and I can adjust the heat from the driver's seat. It feels like a little metal arm, that's the best way I can describe it, and it's on the passenger side.

 

 

have you changed your thermostat?

 

maybe 4 k miles ago

 

Heater control valve:


Air blend cable:

 

sometimes the hoses get clogged this wont let the heater core get hot enough to blow hot air

 

glad i found this thread, i just fixed mine, but under the dash is there suppose to be a clip on the wire going to those white arms? my cable keeps wanting to slide off. please if anyone knows, please tell me

 

Here is a better pic for you:


The only thing that holds the cable is the metal clip it
pops into..

If the cable end is popping off,the cable may be weak or
there could too much resistance..

I have seen foreign objects like pens/pencils limit the movement of the duct
and have also seen ducts glued into place by spilled cokes/coffee..

 

coach basketball after school and make some extra duckets to upgrade out of the EF!

 

what if my car takes a long time to get hot heat when the car temp is already warm?