98 2.4 chevy malibu water is getting in the oil the car hads never ran hot is it something else that could cause that

Look for a broken heater hose.

First thing to look at is coolant level. It sounds like the coolant pump will push coolant to the heater core and then stops pumping because it has air because to low. If coolant level is full, the vanes on the coolant pump might be spinning on the shaft, in which case you will have to replace the pump.

replace thermostat did bleed coolant system check coolant level.because if not engine could have overheated and blowed headgaskets warp or cracked the heads check engine compression.sound like engine got too hot.

you overheated it and then it would not turn over?i would check for anti freeze mixing with the oil and then do a compression test on all of the cylinders in case you blew a head gasket

Drain the oil and check to see if it's water or antifreeze. If antifreeze, it may be from an intake or cylinder head gasket Even when not being used those can continue to deteriorate. If it's plain water, it may just be condensation in which case, I'd simply change the oil with something inexpensive, run it for an hour or so (just to clean it out)then change it again using a good quality oil.

the valves are hydralic and require no adjustment. if noisey then a bad lifter/rocker arm/cam shaft may be the problem. also low oil level,or foamy oil from to much oil or a leak in the oil pump pickup system could cause noise

this smell from tail pipe may be burning coolant, does it smell sweet, if so have head gasket checked. when a car has problems with something from tail pipe. it is usually the head gasket that is bad.

Did your vehicle run out of oil? There also may be a seal that is broken within the system. It should be looked at by a mechanic as soon as possible before the engine blows. I had a chevy malibu that ran out of oil and after that the engine was never the same. After taking it to the mechanic, they found a crack in the manifold which was a result of running it with no oil. Engines get very hot when they are running and they need the lubricant so the parts don't seize up. Good luck

sounds like an antitheft system malfunction - check to see if light stays on after you remove the key

coolant sensor maybe 19 mm key its near the upper radiator hose in the engine thanks pierre