Heat before to late!

[jdawg901]

Hey guys I need help I have replaced thermastat ,heater control valve ,heater core ,water pump ,blend door actuator ,and even the heater control unit is there something im missing ?The door on top of the core opens and closes properly ,with the heat on high the hose still fell warm as well as the core it self .I could deal with it but have a new girlfriend and also a seven year old girl who loves to ride in the hoe.Help would be greatly appreciated.

 

[raptorforme93]

So you replaced everything but its not blowing hot air??

 

[grnrpr68]

have you flushed you coolant???

 

[retorq]

What temp thermostat?? You sure it's in right?? Pull the hoses and see what kind of flow you are getting. I bet you have a blocked hose.

 

[jdawg901]

correct replaced everything ,yes flushed coolant pleanty of times due to swapping of parts and 195 thermastat .I dont know but i dosent seem like the hoses coming from the water pump and back of block to the heater control valve are warm after i drive from home to work which is about 5 miles shouldnt they b to hot to touch

---------- Post added at 05:45 PM ---------- Previous post was at 05:43 PM ----------

If i had a blocked hose wouldnt over heat or something because everything seems to be operating properly.Temp runs aroun 210 thats pretty much norm with a 195 right.

 

[95TwinTT]

The heater hoses can be blocked and it will have no affect on the cooling of the engine.

I agree with retorq, must be something blocking or keeping the coolant from flowing through the hoses. Perhaps a vacuum leak or vacuum control problem, that controls the flow valve. Have you checked for “air lock”.

 

[sumo]

i had a similar problem on my 89 sierra. I did the same things and still had no heat. I ended up taking the heater core hoses off. Took a hose to one end and you wouldn't believe all the crud that came out. I then Reversed the hose and flushed it the other way. Problem solved