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Anonymous
Anonymous Posted on Jul 17, 2009
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No oil/coolant mix compression good even.wiring harness?

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  • Anonymous Jul 17, 2009

    i have a cheap obd scanner no codes came up i did get a #6 misfire and a bad coil code but that was bcuz i unplugged the coil to see if the cyl was dead i unplugged each cyl on dr side.im old school as i unplugged each 1 the rpm dropped indicating the cylinders were firing except 3rd cyl back on dr side cant reach it on pass side its covered by the intake any ideas. thnx ??

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Ginko

Ginko

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  • Lincoln Master 19,396 Answers
  • Posted on Jul 17, 2009
Ginko
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No oil coolant mix and good compression lets think that the head gasket is good.

If engine is rough a good start point could be scanning the ECM with and OBD code reader.

Give more detail on the problem if you want a more accurate diagnosis.

Thanks.

  • Ginko
    Ginko Jul 18, 2009

    If one cylinder has no spark then it is either the cable or the distributor.
    Ensure that spark plug is good, and that the cables from distributor are connected in right order.
    Try replacing the cable, if that does not fix it , then go for the distributor or distributor cap.

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Hi, I have an 06 kia sorento. We are losing quite a bit of coolant daily. It keeps throwing a cylinder 2 & 4 misfire daily. All plugs, wires, and coils replaced. T/stat and rad cap both replaced.
possibly out the exhaust ports
have a compression test done
have a coolant system pressure test done by a professional radiator shop to check for leaks while stationary
remember that misfires are moe probable from dirty injectors and wires than plugs and coils
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Looks like i have oil in my coolant its a 1972 chevy 350 i also notice when you first start the car the guage reads 50 lbs of oil pressure when it warms up it shows about 20
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The ONLY way coolant can get into the crankcase is through a crack in the cylinder head, block, or head gasket. THE ONLY WAY!.

Checking compression was a good idea, and you've confirmed that is not where the leak is. It could be somewhere else within a head, the block, or head gasket.

Any gasoline engine will blow steam from the exhaust pipe on start-up and a few minutes running. May even stink, depending on how sensitive your nose is to smell.

I think your going to have to dig deeper into this, if you truly had coolant in the oil. But to tell you exactly where to look is not going to be easy.
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Hi, I have an 06 kia sorento. We are losing quite a bit of coolant daily. It keeps throwing a cylinder 2 & 4 misfire daily. All plugs, wires, and coils replaced. T/stat and rad cap both replaced.

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