replace the thermostat which is located in the housing that the top radiator hose attches to the engine
With my car, it was Heater matrix clogged with radiator sealant. The workshop cleaned it and it's start working fine!
Bad bearing in blower motor?
No cable, all controls are done with electric motors.
no
No.
Low Coolant? Bad thermostat? Heater core plugged or restricted? Heater core airbound? Heater control cable not working?
No.
There isn't a vacuum line going to the regulator on a 1998 Dodge Caravan.
No. A 1998 Dodge does not have a reset button or kill switch.
will a 1999 voyager brain work for a 1998 dodge caravan
Yes.
Apparently, according to a Dodge retailer, the computer on the 1998 Caravan can't get reprogrammed (the EPROM is not flashable). A new one is necessary...
Green