quick heat issue

[Kozworth]

Coolant is bled, new t stat, new wpump.

Heat only works when its warm out. All hoses are hot but inlet/outlet heater core hoses.

Coolant is all new.

There was no debris in the coolant when i drained it. Before I go to town on the core, is there any options if its the valve vs the core?

[MR 325]

Are you sure the heater core hoses aren't backwards?

[Jafxod]

Bleed it again with the car jacked up in the front and with the heat on in the car.

[Kozworth]

Are you sure the heater core hoses aren't backwards?

Pretty sure, never touched them. P/o said heat worked but never tried it until after I replaced a wpump.

I did bleed it for a good half hour jacked up front with the heat on massaging the hoses and bleeder screw open

[dnguyen1963]

Your heater core is likely plugged. Disconnect the heater hose and use a garden hose to flush the core...see if you can get any water through it.

[Kozworth]

is there a way I can block the coolant so I do not have to rebleed the system?

And if the core was plugged, wouldn't the hoses be hot anyways

[Kozworth]

Edit: rechecked heater hoses, they are warm but not boiling hot like upper/lower rad hoses

[MikeDE]

Are you sure the heater core hoses aren't backwards?

Check this^....why you ask?? See answer below...

P/o said.....

That's why...most p/o are a) Dicks and b) rarely give the whole story b/c they wanna sell the car and they're too embarrased.

[Kozworth]

Ill check the bentley to make sure, but p/o and I are tight so if there is any issues it would be the p/o before him. Thanks for the tips though