Question about 1988 Isuzu Impulse

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White smoke exhaust

Recently picked up a 1988 Izuzu Impulse Turbo 4cyl with 104,000 miles and it runs and drives great. The only problem that I have found so far is that it blows white smoke from the exhaust once it warms up. The smoke has a coolant smell, not an oil burning smell. The engine oil is clear and not milky and the engine runs and idles smoothly. Can anyone tell me what might be going on?

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  • branman1971 Oct 19, 2008

    I am sure that there is a coolant leak in the motor somewhere. How can I find out where?

  • branman1971 Oct 20, 2008

    Why would you think there is a leak in the firewall?

  • branman1971 Oct 20, 2008

    I found a compression leak tester, and will try that this afternoon. That should confirm or eliminate the possibility of a bad head gasket or cracked head. Right?

  • Anonymous Mar 31, 2014

    cant tell if its white or blue, but it isnt using much oil or loseing any water. it is there from starting the engine and on idle but not sure that it is present when on the road.

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White smoke is caused by coolant or water coming out the tail pipe. There is a chance that the white smoke was caused by water splashing up from a puddle onto the exhaust pipe. Keep an eye on the coolant level in the radiator in any event. If its less then there leak coolant leak in the car engine which is causing this problem....

Posted on Oct 19, 2008

  • 1 more comment 
  • Anand Kumar
    Anand Kumar Oct 20, 2008

    Check the level the coolant in the car if its deceasing then there leak in the fire wall of the car you need to check it..

  • Anand Kumar
    Anand Kumar Oct 21, 2008

    Yes .

  • Johnny Thomas
    Johnny Thomas May 20, 2012

    Yes on the leak down test If you have white smoke coming out the exhaust and the engine runs good then must have an exhaust side leak in the head or head gasket .No real way of telling until you pull the off could be ahead gasket cracked head all can come from the exhaust side and not make the engine run bad if it is a tight leak then it will not leak until it worms it will get worse pull the head before you ruin the engine
    Johnny

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