Project Thunderstorm
Reply #59 –
That thread had no mention of the coolant crossover tubes in the intake that I could see. It would be fairly difficult to remove them, as you would have to take the intake off and block coolant flow through it, then make sure that wouldn't cause an overheat issue by checking the flow diagram. If you can find one. but it is certainly an obstruction in the intake. You should see them clearly if you remove the throttle body. They will be covered in black soot from the EGR.