I have a 95 Caravan that suddenly lost normal heating ability.
I was getting warm air on defrost but when I'd switch it to vent or floor-
Did a complete flush and fill, replaced thermostat and now the heat is
only warm when I rev the engine in neutral or park.
Put in a new water pump and had great heat for about 15 minutes...then
back to cool air again! Grrr!
We're ready to warm this van up by setting it on fire- any help or advice
Let me know what you find! If you read through this group, you'll find
there are a number of us with the same problem! There does not seem to be
a magic bullet solution!
The only other thing I can think of that you haven't mentioned...did you
replace the radiator cap at the same time? Are the arrows lined up with
the hoses? This also seems to have an effect.
Hachi, still freezing in his '92...
Any time you deal with heat from the system you have to determine if it is a
heater core/HVAC problem or an engine problem. Feel the hoses that come into
the firewall and make sure they are hot going in and hot going out. if they
are hot and still have no heat you have a blend air door problem inside the
box. If the hoses are warm to cool find out why the engine is not heating
Yep replaced the radiator cap.
we flushed the heck out of the heater core- again, for a longer time- and
now have heat.
I'm just waiting for the other shoe to drop and for it to go away again.
(The hose going in was quite hot and coming out warmish b4.)
Thanks- I'll keep updating.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.