Question about Reliance 91-1994 Saturn Sc Sc1 Sc2 Sl Sl1 Sl2 Sw1 Sw2 Alternator

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I was told that my compression in my 94 Saturn sc2 was low. What could really be the cause of it. Oh yea my car also has a bad radiator and a bad thermostat as well.

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Low C can be many things, has it overheated? it can be leaking head gasket, burnt or worn out valves/guides or cracked rings. Check for smoke to help rule out the rings, short of an upper engine tear down, you won't know which, a basic leakdown test on the cylinder may help determine

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