Heater-Thermostat Help

I have a 2000 Caravan with a 3.3 V-6. I have no heat. The blower works, the radiator has fluid and the temp guage barley moves. Can it be anything but the Thermostat?

Thank you,
Vince

After the motor has run enough where you think it has warmed up, locate the 2 heater hoses that go through the firewall, one hose goes to the heater core and one is a return, they should both feel about the same temperature. If there is a big difference you could have a blockage in the heater core. If they are both hot then the problem is most likely a stuck blend door. If you are in doubt about the motor not fully warming up you can feel the upper and lower radiator hoses after the motor has run awhile, bot of them should feel hot.

"the temp guage barley moves" = bad thermostat.
The temperature sensor for the gauge is on the engine.

"the temp guage barley moves" = bad thermostat.
The temperature sensor for the gauge is on the engine.Yup.