Re: New cylinder heads
DO NOT TEAR DOWN TILL YOU ACTUALLY TEST THE OIL PRESSURE. Oil pressure senders are decently common and if your dropping out randomly and picking it up randomly I would lean towards an oil pressure sender, obviously being a total S.W.A.G. (scientific wild ass guess).
Coolant, you have the heater core hoses around that side, ensure you dont have leaks... honestly I dont know how long you have run it, but they can smoke for a long time after open heart surgery. Figure out your oil pressure issue and then let it run. It could be your radiator cap leaking externally on the passanger side of the motor... I have seen one that visually was perfect but if you revved the engine up for a couple seconds it would spray externally.
2005 Jeep Grand Cherokee - Gone but not forgotten!