Oil in the antifreeze on my 2003 gand am 3.4 - 2003 Pontiac Grand Am

Antifreeze in the oil sounds like head gasket, if it's head gasket sealant, run engine until warm

heater core may have a leak.

yes very know problem.first dont start car anymore.you got broken,
pakkage,this seperate the oil and water from eachother.chech if your water tubes are full off oil.the pakkage sit between head engine and cilinder.most common problem is cooling system did not turn on.
or thermostat didn open enough.no power on contact propeller.
even blown fuse.to little antifreeze.

Turn key to on position(do not start). Hit gas pedal completely to floor 3 times. Change oil light should reset.

Well normally with toyota you change your belts about every 90,000 and spark plugs every 100,000 and if you havent changed your antifreeze then you will, they say toyota red antifreeze is suppose to last 5 years but i would change it every 3 because it breaks down just like regular oil does. and i would get done the tranmission fluid normally you change that every 40,000 since its just like oil.

all engines require motor oil

Hydraulic lifter may have failed. You will have to remove the valve cover and inspect.

This is a common problem for Jeeps. The connector over heats and causes a bad connection. You can get this connector pretty cheap at the dealer. Replace it and it should work fine.

White smoke is caused by water and or antifreeze entering the cylinder...If white smoke is present, check to see if the proper amount of antifreeze is inside the radiator and the overflow bottle. Also check to see if antifreeze has contaminated the engine oil. You can look at the engine oil dipstick, or look at the under side of the engine oil filler cap. If the oil is contaminated with antifreeze, it will have the appearance of a chocolate milkshake. Do not start the engine if the oil is contaminated with antifreeze, as serious internal engine damage can result.
Good luck..i hope this helps.... please rate me a fixya

A few tell tail Signs to look for are
1. Excessive Pressure in radiator and car over heats
2. Look under oil cap when antifreeze and oil mixes it becomes a cream-ish white like heavy cream almost. It may be under there.
3. White smoke all the time out the tail pipe
4.loosing antifreeze but there is no visible leak.
5. Antifreeze in oil or oil in antifreeze.