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leaking coolant
Hi, I have a 2002 silverado with a 5.3. I am having problems with coolant leaking... only its not. I am unable to find it dripping anywhere and it goes down very slow over a period of time. The truck idles really rough and seems to die sometimes. This happens regardless of whether it is cold or warm. I originally thought it was the infamous intake gasket problem but the codes i get are #4 misfire and lean condition on both sides. I have also noticed the oil pressure to be lower than usual, around 30 at idle. What is normal for oil pressure at idle? Also what could be causing my coolant leak? I am planning on going to a mechanic as I have had enough of this truck. I would like to have some education before I go into the shop blind. Thanks, Derek
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