1995 Chevrolet Caprice Q&A

1995 Chevrolet Caprice Question: No heat--What are the causes of luke warm heat at idle & cold air when moving?

car & engine running great. water pump just replaced. coolant flush recent. no engine code. heater valve is new. heater core is NOT leaking. -
Answer 1
1- Thermostat stuck open. 2- Heater core restriction. 3- Low coolant level. That is about it!! -
Answer 2
I agree with wetry it could be a stuck t stat -