my 90 ford e-150 van 5.0l 302eng
heater does not feel werm not hot like should the blend door works fine as i can tel
it has new heater core thermostat i think 195 i dont know
whats is the oe type thermostat that came from ford
the hoese have pressure when running what is the operating temperature
for this vehicle
Not for sure, but 195 sounds right - 160 is definitely too cool.
The pressure on the heater hoses will be the same as the rest of the system - 16psi or so - whatever the radiator cap is rated for. It's important to keep the proper cap rating on - this raises the boiling temperature of the coolant.
As ProjectSHO89 suggested - check the heater hoses - both should be hot.
One item of experience from my past is that I bought the cheapest heater core the parts store had. It didn't heat well. Closer inspection (held it up to light) showed that about 1/3 of the fin area was blocked off - not apparent until looking through the fins. Heater wasn't heating well, defrost was a lost cause until I got a good core put in - then all back as it should be.
Your vintage likely still uses a cable to actuate the blend door - do you hear it 'thunk' closed when you move the controls to Hot?
Are you sure you have enough coolant in the system?
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heater does feel hot
