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My 1987 toyota mr2 is blowing white smoke, i just had the headgasket replaced, the car is losing oil and is not getting hot or loosing coolant. I was told it might be the pcv valve but i cant find it on the car, any suggestions?

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White exhaust smoke usually means coolant in the combustion chamber. It can mean unburnt gas, or too rich mixture. PCV does not cause this, but buy a new one as they are cheap and then find the thing stuck into the valve cover which looks just like it, and replace it. it sits in a grommet and a large vacuum line attaches to the top. On a car that old you should replace the grommet and the hose.

Posted on Apr 01, 2011

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I have an 04 dodge 5.9 Cummins and it loses power and blows smoke every where and the rpms want go over 2200


That depends on what color the smoke is. Blue smoke means burning oil and you probably loosing compression therefore loosing power. White smoke means coolant

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Does the smoke occur all the time? If it is present just after start up and then goes away, it could be no problem at all. There is always some condensation in the exhaust at start up. It is more noticeable in cold weather.

However, if it is there constantly, and you are losing coolant, it could mean there is a headgasket problem. Watch your coolant level and watch your temperature gauge. If the coolant starts disappearing, and the car starts overheating, stop it immediately and get it to an auto repair shop. Driving a car with a bad headgasket can cause major engine damage.

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White smoke from motor


Checking oil when it's HOT with mask the coolant oil mix formation.
Check the oil when the engine is COLD. If it has creamy/milkshake like oil in the engine crack case then it's a real bad sign.
Check the oil cap when it's COLD. Like for the creamy/milkshake non-oil like cream.
Are you loosing coolant?
Keep a log book on the coolant lost.
Does it over heat or does it the engine ran hotter compare to few months ago?

To pin point a blowing headgasket you will need
1)coolant system compression tester
or
2)chemical reaction test for combustion test gas
If it's the org. engine from 1986,with over 86,000 then blown headgasket is a good possiblity.
Tow it to the shop and let the pro to do the coolant pressure test and combustion gas test.
A full head gasket job with head re-surface (if it can be re-use) is worth it.
Shop around on well estiblished independent shops.
Fix the blown head gasket at the first stage of failure can safe you thousand on a head replacement.

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Blown head gasket


Look the engine over and see if you can find any external leaks, change the thermostat and make sure that fan(s) are operating.
Check the oil for water...loosing that much, it has to show up somewhere. Blown headgasket usually puts oil in coolant or coolant in oil, causes an external leak from between head and block or goes out through the tailpipe as steam.
look carefully and you will find your problem!!

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On start up I get lots of white smoke this lasts until car warms to normal operating temperature, car is using a little oil have noticed oil spitting from exhaust, no obvious sign that the head, head...


Stage one of a blown head gasket is a pin hole leak. As time goes by the hole(s) get bigger.
I will start traking the coolant lost and oil lose.
From the time you stop your engine to the next morning,there can be slow leakage between the coolant passage and the cyclinder end of the head gasket.
This is one possiblilty of lots of white smoke in AM.
Small amount is normal but large amount of smoke is a call for a professional check up.
To pin point a blowing headgasket you will need
1)coolant system compression tester
or
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If it's the org. engine from 1997,with over 110,000 then blowning headgasket is a good possiblity.
Drive it to the shop and let the pro to do the coolant pressure test and combustion gas test.
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Shop around on well estiblished independent shops.
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hi its not the egr valve white smoke indicates water combined with loss of power indicates headgasket oil blow back faulty pcv or piston rings worn yates210456

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