Blowing but no heat!

Sounds as though your thermostat is sticking. Speeding up the engine is forcing the antifreeze past the thermostat. replace and that should fix it

Usually the problem with no heat and overheating is low coolant, thermostat, or a faulty water pump impeller.
The radiator may not be full of liquid coolant, or the pump may not be moving the coolant thru the block.

the way to check the thermostat is with the motor hot feel the upper radiator hose to see if can squeeze it. you should be able to squeeze it. the water pumps is big problem to

Yes it could be the thermostat or low coolant.
If the radiator is full, I would suspect the thermostat.

Befor you replace the fan you need to check the thurmastat. Turn on heater and see if cools down the motor. Could also be your heater core going out. this supplys the water through your system to cool. as well as heat. good luck
If you do have to replace fan it should be under $100

Sounds like bad thermostat, very common issue. Replace thermostat and add new coolant and you'll be rolling again.

Hi,

The overheating and lack of cabin heat both point to a failed engine thermostat which would be stuck closed. At the warm up stage, the coolant stays in the engine block to bring the engine to efficient operating temperature, then it opens and circulates the coolant through the radiator and heat core. If the thermostat is stuck closed, the engine will overheat, and coolant will never reach the heater core, and you will not get cabin heat.

Blinking oil light at idle which goes away during driving could be a low oil level, but may also be a drop in oil pressue. You could have a clogged oil fliter (at best) pickup tube, or a failing oil pump.

make sure you have plenty fluid in the radiator and the bottle. sounds like it is low.

jtg

The first thing i would do is replace thermostat and bleed cooling system, then re-check, It sounds like you have a defective thermostat.