Iv replaced the whole cooling system and still over heating HELP

[Scuzzy883]

Dudes im at my witts end. Iv replaced everything in my cooling system i mean EVERYTHING and I'm still overheating. I just got do e replacing my heads cause of it I dont want to do it again

What am i missing??? Im not sure what else to do

 

[PetroleumJunkie412]

Details man, details!

 

[Dirtman]

Did you replace the upper radiator hose?

 

[sheep herder]

Has PJ been peeing on it?

 

[racsan]

could you have a air pocket? Ive had that issue with 2.3’s before.

 

[Scuzzy883]

So I replaced. Radiator, heater core, water pump, Tstat and housing, upper and lower rad hose and the hoses from heater core, fan abd clutch. Everything hahaha

Its a 91 4.0 4x4 with AC

 

[Scuzzy883]

could you have a air pocket? Ive had that issue with 2.3’s before.

Any trick to getti g them out? If done the up hill burp

 

[Scuzzy883]

Did you replace the upper radiator hose?

Yes i have

 

[PetroleumJunkie412]

4.0

Well there's your problem...

 

[PetroleumJunkie412]

But seriously.

I've found evidence of casting residues in every cologne I've worked on, 2.9 and jy 4.0s. Did you flush and backflush your block?

 

[Scuzzy883]

But seriously.

I've found evidence of casting residues in every cologne I've worked on, 2.9 and jy 4.0s. Did you flush and backflush your block?

I poured water in the tstat housing till the block ran clean the frist time. Think I should get a flush treatment and do it again?

 

[Scuzzy883]

Well there's your problem...

Your not lying hahaha

 

[PetroleumJunkie412]

I poured water in the tstat housing till the block ran clean the frist time. Think I should get a flush treatment and do it again?

Need pressure. Engine dead 12 hrs. Don't risk a head on a cologne. Thermal shock is bad for them. Garden hose at full tilt through the block and heater core both directions. Do till clear several times.

Take rad out flush upside down and right side up too.

 

[Scuzzy883]

Need pressure. Engine dead 12 hrs. Don't risk a head on a cologne. Thermal shock is bad for them. Garden hose at full tilt through the block and heater core both directions. Do till clear several times.

Take rad out flush upside down and right side up too.

Copy that, I'll report back when I can

 

[franklin2]

If you don't get it, write back in and answer some questions;

1. How do you know it's overheating? What are the symptoms? I hope you are not just going by the factory gauge. If you are, you should have other symptoms along with it. Or are you puking coolant? Any other symptoms as to why you think it's overheating?

2. When does it overheat? Only in town and not on the highway? Only on the highway and not in town?