I have a 01 Chevy Blazer with the 4.3 v-6... It appears to have a blown intake manifold gasket. There is oil in the coolant. No water in the crankcase. What's the easiest fix???
That is a blown head gasket, not an intake gasket. You need to fix it before more serious damage happens.
Can you see what color the oil is? If it is a blown head gasket, coolant would be in the oil, or white smoke coming out the exhaust. Usually one or the other.
Pressure test the cooling system first. With the system under pressure start the engine. Watch the gauge on the pressure tester. If the needle bounces it's the head gasket. If not, it's the intake gasket. These intake manifolds are plastic. If there's a coolant crossover passage, which there appears to be, the intake itself could be cracked. Personally, I'd replace the intake manifold and gasket. Then change your oil twice immediately after the repair. Before even driving it to remove all the contaminated oil. HTH. -Jim
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