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That is a common problem with the vortec 350 engines. The intake manifold gasket starts leaking in the corners of it. That is where the water jackets are and it's only about 1/4 of an inch wide and when it starts leaking it allows engine coolant to leak into the lifter gallery and into the oil. Need to replace intake gasket as long as you no it did not freeze and crack the engine block.
What else can I help you with?
Why does a 1997 Chevy Lumina Ls have coolant in the oil?
Sounds like head gasket is leaking
Where can I get a Oil coolant hose for 1990 Chevy silverado 1500?
Dealer item only, Sorry,,,,,,, Or salvage yard
Why does coolant appear to be leaking from the oil pan gasket on a 2001 Chevy silverado 5.3?
the water pump gaskets start to leak (right or left, or both) and the coolant runs down the block to the oil pan/ block joint and appears to be coming from the oil pan. follow the leak closely, and you will probably see that it is coming from above the oil pan in the front.
What is involved with a 350 Chevy intake manifold that is leaking coolant and oil?
You either need a head gasket or intake gasket.
What does it mean when you have motor oil leaking into your coolant in a 2000 Chevy Malibu?
Either a blown head gasket or a cracked block possibly
Why is the coolant a milky color?
The coolant has oil in it. Possible causes are a failed headgasket, or a leaking oil cooler,
Why is oil leaking into the coolant?
You need a head gasket.
Where would oil be leaking into coolant?
blown headgasket
2004 Chevy Silverado oil change?
what weight oil used for 2004 Chevy silverado the standered is usually 5 w 30
Where is the oil plug located for a 2007 Chevy Silverado ext cab?
"Where is the oil plug located for a 2008 Chevy silverado ext cab?"
Where is the oil pump in a 1993 Chevy Silverado?
In the oil pan
What viscosity oil for your 2006 Chevy Silverado?
5W30 oil.
