Quote Originally Posted by derekchace View Post
a new core for the heater from the parts store is probably not an option on my 24v rover?
Voltage doesn't have anything to do with it. The "core" is the radiator inside the heater box. Over the years they get plugged up both inside and outside and don't transfer heat very well.

If you're having trouble, take your old core out and bring it to the parts store. Even if it's different than the Smiths style I'm sure they can match it up with something for very short money.

By the way, the replacement core part numbers for the Smiths style heater are as follows:

4-Seasons/GDI - 399024
Everco - H2329
Napa - 660-3076