D Max help

[Mr. leafspring]

D Max (classic) LBZ possible head gasket failure any gurus and they're professional opinion on the subject would be great before I give in head first ,no punt intended... Thanks in advance

 

[RustyC]

Is it loosing coolant? Coolant in the oil? White smoke?

 

[Mr. leafspring]

Lot of psi on cap and coming from reservoir hard top hose but no other symptoms, all forums lead towards HG....

 

[jtreeves]

could be egr cooler if it hasn't been deleted my lly duramax the egr was letting exhaust gas get into the coolant system

 

[Throttleout]

Is it getting hot, loosing coolant, smoking? Is it blowing coolant out the degas bottle?

 

[Mr. leafspring]

No running hot no smoke jus coming out of Degas bottle and top radiator hose hard

 

[TBItoy]

I'd throw a block off plate in the egr first just to eliminate that from the equation. It'll throw an insufficient egr flow code, but it's probably the easiest way let you know if that's the problem.

 

[Mr. leafspring]

Had blocked egr for couple years now , if nothing else convinces me over the holidays I'm gonna do t stats and coolant cap and gown from there

 

[Throttleout]

Does the hose stay hard over a night of sitting? Is there any dark color in the degas bottle? If either of these I would say a hg. Last lbz I had same issue it was an hg. I could brake torque in 4x4 with no cap and push coolant out.