What else could be causing the problem described below?

My car is leaking oil into coolant, making a burning smell, white smoke from the tailpipe, misfiring. Test for a blow head gasket shows that it's not blown. What else could be causing all of that?

Updated 3 days ago:

2001 Camry

5 Answers

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  • Anonymous
    1 day ago

    A cracked head between the oil and coolant passages inside the head if it's engine oil, also quite possibly the automatic transmission oil cooler in the radiator if it's AT fluid. The head gas test only checks for exhaust gas getting into the cooling system, there's no way to test for a bad head gasket oil into the cooling passage of the head gasket leaks. From the sound of your description, the head is cracked and blowing oil and coolant out of the head cracked exhaust port into the exhaust system.

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  • 3 days ago

    i would ask a mechanic to check it out

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  • Anonymous
    3 days ago

    A cracked block or head.  A bad intake manifold gasket.  A bad radiator. 

    Remove the valve cover and pressure test the cooling system to check for a leak in the head.

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  • Rick
    Lv 6
    3 days ago

    is the car an automatic transmission ??  IF so, COULD a transmission fluid cooler built-in to the radiator that is leaking tranny fluid into the coolant ................

    • Robsteriark
      Lv 7
      2 days agoReport

      A good suggestion, but white smoke means coolant is also getting into the exhaust. If asker is certain it’s not HGF then a potentially far more expensive engine fault is allowing coolant into the oil and coolant into the exhaust.

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  • L.N.
    Lv 7
    3 days ago

    It would be helpful to know what engine we are talking about, but if your's happens to be one with water passages in the intake manifold you could have a bad intake gasket. Many GM engines from the 90's and early 2000's had this problem.

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