I just bought a 98 Malibu LS and its leaking engine coolant and the guy I bought it off said it needs a intake gasket. There is nothing mixed in with the oil when I checked the oil but I can smell coolant in the exhaust the engine overheats, the engine idles rough and runs rough when sitting at a stoplight the engine stalled but started right up but I have to put the car in neutral at a stoplight to keep it from stalling. I've noticed a leak on the engine towards the bottom of the engine; so is this just the intake manifold and gaskets needing replaced or could there be more?

 

If you can smell coolant in the exhaust, I'd be worried about the head or head gasket.

FWIW, this is a 3rd gen (1982-92) Camaro and Firebird forum...you're probably not going to get much help in fixing a later model grocery getter.