We think we have oil in the anit freeze overflow tank is it the head gasket or is it a mix of different antifreezes
engine not runnung smoothly when idling, when I step on the gas to accelerate the engine misses a bit, there looks to be a lot of leaked oil under hood under belts, oil in antifreeze overflow tank, there's kind of a squealing noise in engine when accelerating.
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Re: oil in the antifreze over flow tank
Yes, oil in the antifreeze typically comes from a blown head gasket. To verify, start the truck and watch the overflow tank you should see what looks like a back flow or bubbles. By the time the truck get to normal temp, it'll be obvious.
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If you are losing coolant then you have either an external or internal leak. If you can find no indication of an external leak from the radiator, the radiator overflow tank, any of the hoses on the system or around the water pump fitting then you may well have an internal leak. Check the radiator overflow tank carefully and the hoses to it for any signs of external leakage.
An internal leak of coolant can be via a failed cylinder head gasket or a crack in the cylinder head or both. Coolant can then leak under pressure into the cylinders or into the engine's lubrication system and will then mix with the oil. Check the condition and colour of your oil for evidence of coolant contamination. Check your exhaust for a constant flow of white exhaust emissions which is evidence of coolant entering the combustion chamber.
If you have run the vehicle with the engine overheating this will generally cause failure of the cylinder head gasket and possibly a crack in the cylinder head.
A few things could have happen,
1 you overheated and blew the head gasket and now the oil in mixing with the anti-freeze,
OR due to high Mileage the head gasket has just failed and is leaking into the anti-freeze journals inside the engine.,
Did you check the oil to make sure it's not a white'ish sludge on the inside of the cap, you might be mixing both back and forth..
white smoke is caused by-- water or anti-freeze entering cylinder . if in radiator or the overflow tank. it will look like a chocolate milk shake. check on oil dipstick for traces of water or anti-freeze. also, a bad head gasket will let water or anti-freeze in combustion area. head gasket symtoms if bad. Symptom #1: Chronic Engine Overheating Symptom #2: Significant Drop in Coolant Level Symptom #3: Mixing of Coolant and Engine Oil Symptom #4: White Smoke from Exhaust Pipe popping of overflow cap Symptom #6: Air Bubbles in Radiator Symptom #7: Engine Lacks Power GOOD-DAY!
sc1232ip, I think that this is definitely a head gasket problem. When the coolant boils out of the everflow bottle it is because combustion gases are getting by the gasket and heating the coolant faster than the radiator can cool it down and this is the easiet place for it to escape. Also the code po300 for a Chrysler is for a misfire detected. One of your cylinders are getting oil or coolant into them causing this. You didn't mention what color your exhaust fumes were. Are they white (coolant) and have a sweet odor to them or do they have a blue tint to them (oil). Another possibility is a crack cylinder head. Good luck with this.
hi there is there alot of oil in the plastic overflow tank ? what color is it ? when did you notice it ? does the engine run good is it shakey ? take a peek at all ur spark plugs you want them all to look the same slight brownish color is normal. lots of white on the plugs means coolant is getting on them under heat and pressure they get clean too white this is usually a head gasket damaged and leaking a little coolant into cylinder burning and being exausted through the muffler and you might see a white smoke from tail pipe, saying that coolant would not be going in oil that way . if its automatic trans there is a transmisson oil cooler built into the rad now tranny fluid runs through the rad cooling transmission oil coild get from transmission into rad in turn, getting into plastic over flow container. is there coolant in the engine oil ? the oil level will be a little higher than normal if there has been coolant getting into motor ? theres also another way that ive seen coolant enter the oil through the intake manifold gasket its tough to decide ehere the leak is , does it run and idle smooth ?
after a long ride in the hot daytime sun after you turn off let it sit for 20 min then pop the hood and with gloves on swueeze the upper rad hose and check if theres pressure in it dont open cap as im shure you know. if there is a coolant leak depending on how bad it is you will notice that there will be very little or no pressure in you upper rad hose need to pressurize the coolant in order to cool engine correctly. well i hope i havent said to much at once , take a close look at all questions and write me the answers maybe we can pinpoint the problem for you
1 rad transmission cooler
2 real bad head gasket or cracked head
3 intake manifold gasket how does it run and idle
anyhow i hope i helped you a little until next time
bye good luck get back to me please