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Oil leaking into coolant - 1999 Saturn SL

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Has the saturn over heated, if so u have a cracked cylinder head or bad head gasket.once u remove the cylinder head u can determine what cylinder the leak is in & see if its a bad gasket.

Posted on Nov 11, 2010

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1 Answer

Oil in coolant


Sounds like an intake gasket leak. Oil can leak into the cooling system without coolant leaking into the oil.

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Oil in coolant reservoir 1995 dodge 5.9 gas no coolant in oil no white smoke


Usually a leaking head gasket if its not transmission fluid.
The gasket can leak oil into the coolant without leaking coolant into the cylinders.
You might also want to check and see if you have an engine oil cooler running thru the radiator.

Aug 07, 2013 | 2000 Dodge Intrepid

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I have oil leaking into cooling system, but no water in the engine. My oil level is dropping. What can cause this and what is the fix?


This is caused by a leaking head gasket. When a head gasket leaks you can get oil in the coolant or coolant in the oil of the engine or both. You will need to pull the cylinder head off, have it checked for cracks and if none are found have it machined flat again and replace the head gasket. Use only a quality head gasket set either from the Toyota dealer or a well known quality brand like Fel-Pro (available from NAPA and others). This is a job that requires some special tools and a great deal of car repair knowledge, time to do the job is about 6 hours.

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1 Answer

Water was found leaking from my oil pan and car is overheating. I have a 95 Mazda MX3


Is it leaking FROM the oil pan, or dripping OFF the oil pan?

If its dripping OFF the oil pan, that leads me to beleive you have a coolant leak somewhere. Check the coolant level. Check for leaks.

Check your oil, if the oil is milky/coffee colored. Or if your coolant looks kinda nasty, you may be looking at a headgasket.

Jul 05, 2011 | Mazda MX-3 Cars & Trucks

1 Answer

Why my oldsmobile alero 1999 wont keep water in


CHECK FOR COOLANT LEAKS AROUND THE RADIATOR LOOK DOWN BETWEEN COOLING FANS AND RADIATOR SIDES FOR SIGNS OF ANTIFREEZE.CHECK ALL RADIATORS HOSES AND HEATER HOSES.IF ALL LOOK GOOD CHECK ENGINE OIL FOR COOLANT LEAKS.IF OIL LOOKS LIKE MILK SHAKE COOLANT LEAKING IN CRANK CASE.YOU HAVE A HEAD GASKET LEAK.YOU NEED TO CHANGE OIL + FILTER. GET THE HEAD GASKET FIX.BECAUSE LEAK IN THE CRANK CASE WILL LOCK UP THE ENGINE.IF CRANK CASE OIL LOOKS OKAY.YOU DONT HAVE THE COOLANT CORRECT MIXTURE.YOU SHOULD HAVE 50/50 ANTIFREEZE AND WATER.

Apr 23, 2011 | 1999 Oldsmobile Alero

2 Answers

My s 430 has smoke coming from under hood after driving but not all the time temp gauage reads normal. I had oil and trans leaks sealed but it is still happening, what else could it be? Thanks


SMOKE UNDER HOOD COULD BE COOLANT LEAK FROM RADIATOR ITSELF OR CHECK FOR LEAKING TOP RADIATOR HOSE AND CHECK FOR LEAKING BOTTOM RADIATOR HOSE.LOOK UNDER THE HOOD IF COOLANT BOILING OUT COOLANT OVERFLOW JUG ENGINE OVERHEATING FROM BAD THERMOSTAT OR BAD WATER PUMP.CHECK FOR COOLANT LEAK AT WATER PUMP WEEP HOLE.IF SO WATER PUMP NEED REPLACING.ADD MORE COOLANT UNTIL LEVEL CORRECT.TRY LOCATE LEAK. IF CAR OVERHEATED AND BOILED IT OUT. SMOKE UNDER THE HOOD CAN ALSO BE CAUSED BY LEAKING VALVE COVERS WHICH CAN BE FIRE HAZARD IF OIL LEAKS ON HOT EXHAUST MANIFOLD.

Mar 21, 2011 | 2002 Mercedes-Benz S-Class

1 Answer

My mazda mpv 2001 coolant leaking somewhere. Filled it Saturday full line and is at low level monday afternoon.Where is it going? Van does not overheat


1. External Leaks
You need to get the vehicle to a mechanic to check all flexible coolant hoses, hose connections, around the exterior of the water pump and the entire radiator. To do properly the vehicle also needs to be on a hoist. If there is an external leak you should find coolant dripping from the front of the car while the engine is idling and the cooling system is fully pressurized. However it depends how bad the leak is and it's location.

2. Internal Leak

If coolant is leaking into the engine this is a serious problem and needs to be identified by a competent mechanic. For example, if you have a blown head gasket coolant will blow into the engine and contaminate the engine oil. If you check the oil in the engine's sump it should be completely free from coolant contamination.
You should also check the coolant in the radiator for any signs of oil contamination. If there is coolant in the oil then there will also likely be engine oil which has blown into the engines coolant passages and then mixed with the coolant.
IF you can find traces of coolant in your engine oil (or oil in the coolant) the likely problem will be a blown head gasket and the head on the engine will need to be removed and inspected .

Blown head gaskets are usually a result of an owner allowing the engine to overheat as a result of low coolant level, failed water pump or faulty thermostat. Overheating can also cause major damage to the head on the engine.

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1 Answer

2000 vw jetta 2.0 checked oil no oil showed on dip stick. saw that oil leaked into coolant system. replaced head gasket w/ new head bolts. flushed system, drained oil, new filter. after all done no oil...


Most likely place for oil into coolant is oil cooler, the aluminum box that mounts between the oil filter and a flange that comes off the block.

Jan 10, 2011 | 2002 Volkswagen Passat

1 Answer

Coolant leak front under oil fill cover s engine


OK, 4.3 V6 ? Coolant leak is coming from under the oil fill cover ? , do you mean the oil fill tube ? Could be a bypass hose is leaking, or a manifold gasket is bad, need more info maybe, pics

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2 Answers

Coolant leaking into the engine oil. I'm guessing


its more than likely either your head gasket or intake gasket. You either have the 3.4 or 3.8 engine and they are well known for these to leak.

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