Car overheating loosing antifreeze but no leaks, believe going thru exhaust- can smell it and also white smoke, my oil is clean no suds or bubbles oil is the color its suppose to be, heater works sometimes doesn't always turn on which could overheat car keep adding antifreeze only to see it disappear, now car making a ticking noise im hoping its not the head gasket (that's a lot of money) any ideas on what the problem is and any solutions,
It's definitely the head gasket from what you described. If it is a v-8 like I think it is then its better that you replace both head gaskets or you'll be going back and doing the other one .
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SOURCE: 2002 oldsmobile alero coolant light and fuel
You must always check the coolant hot, expansion will cause a big change in level, how low was it? top it off hot and then drive a few days and recheck the level, I don't think you have an issue here.
SOURCE: Overheating Intrigue
Check your coolant level and see if it is down. If you have checked heads you will notice your engine oil beginning to turn milky white.
If you want a more complete check for cracked heads, plug all spark plugs, and if you can get a coolant pressure tester, pump it up to 12 or 13 psi and then crank the engine over. Watch for water to spray out of one of the cylinders.
Bill
SOURCE: 02 Alero not overheating, no heat
When you say not leaking antifreeze has your coolant level gone down at all? and is it that you have seen no leaks where you park it? What worries me is you can smell it when warming up, have you felt the interior floors to see if damp and do you get any condensation if put blower onto screen, if so then heater matrix is leaking if not could be down to headgasket and/or cylinder head leak.
SOURCE: coolant leak on 96 olds ciera 3.1
Head gasket. The reason for the cold then hot readings is the cooling system is getting gas bound by exhaust gases. A simple intake leak would just make you loose fluid, but wouldn't cause the other symptoms until the coolant was very low. Which leads me to, is the coolant full? The head gasket most of the time will not leak coolant into the oil, but instead coolant will go into the combustion chamber, and exhaust gasses will go into the coolant. You don't see any white smoke until the leak gets extreme. Then shortly after that the engine hydro locks from too much coolant in the combustion chamber. There is a tester that will test your coolant for CO gas. That is the proof of a head gasket leak.
SOURCE: OIL IN ANTIFREEZE
if this is dexcool antifreeze and it has never been flushed after time it will gum up and turn brown if this is the case have your coolant system power flushed I HAVE BEEN DOING THIS WORK FOR MANY YEARS AND HAVE YET TO SEE A 3.8 MOTOR HAVE A CRACKED BLOCK!
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