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I have a 2002 lb7 single cab short bed converted truck, new headgaskets, injectors, arp head studs. Ran fine for 3k miles and dumped coolant in oil. Changed water pump, fired it up and 30min later it was milked again. Any ideas?
 

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I have a 2002 lb7 single cab short bed converted truck, new headgaskets, injectors, arp head studs. Ran fine for 3k miles and dumped coolant in oil. Changed water pump, fired it up and 30min later it was milked again. Any ideas?
Did you loctite the injector cups?
 

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When my HG went out it was pressurizing the coolant system hence the rock hard radiator hose in the morning so water never entered the motor, the leak only went out. From what I recall that is the same symptoms 9 out of 10 failing HG display. X3 on the injector cups.
 

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could have rolled oring on cup. I think bad cup seal from loctite would show exhaust pressuring coolent sysytem. The double orings is what seals coolant off from engine oul. Someone correct me if wrong
 
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