It is not uncommon for the intake manifold and/or valve cover gaskets to develop a coolant or oil leak. Leakage from the intake manifold may result in coolant in the engine oil. Coolant mixing with the engine oil severally impacts the lubrication ability of the oil. Internal engine may result if this condition is not repaired promptly.
Intake Manifold/Valve Cover Gaskets May Leak Oil on Ford Mustang
Average mileage: 148,034 (12,900–209,000)
Engine affected: 2.3L 4 Cylinder
21 people reported this problem
1994 Ford Mustang - 2.3L 4 Cylinder 178,000 mi, Visitor
I have oil in my coolant and my mustang runs very hot, I didn't know why but I've been told it's a head gasket that's blown or a cracked engine block.
1998 Ford Mustang - 2.3L 4 Cylinder 209,000 mi, Visitor
just started this past winter...having my mechanic look at it, but he already told me that if it was the intake manifold he will not fix it