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Old Nov 29, 2011 | 06:30 PM
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Default Smoking Disco

Truck is smoking after taking in water - smoke smells like oil, fouled plugs causing misfires on multiple cyl on bank B. Compression test showed what I thought was a high 180-210 PSI with 10 PSI variance wet and dry. Smoke happens at higher RPM. Cleaned ECU, drove it, checked codes down cyl 8. put new plug in Cyl 8 and the smoking seemed to be bad again. Cleared codes drove it maybe 15 miles or so and no codes have come back. Truck is running normal but still smoking. Oil seperator clean but needs a new hose, rings seem to be OK based on compression test... Valve guide seals? Any other suggestions or ideas?

I may swap in another ecu and see if that does anything.. I will keep driving it and see what I am losing and if any codes come back.
 
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Old Nov 29, 2011 | 07:34 PM
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Have you changed the oil and filter?
Are you loosing coolant?
How much water was ingested by the engine?
Is the air filter dry?
 
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Old Nov 29, 2011 | 07:42 PM
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Originally Posted by Spike555
Have you changed the oil and filter?
Are you loosing coolant?
How much water was ingested by the engine?
Is the air filter dry?
Yes multiple times
No
Quiet a bit, enough to kill it, pulled plugs and cranked it, dried it all out.Drove it next day before it started to miss.
Yes
 
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Old Nov 29, 2011 | 08:01 PM
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Well then I am going to say that there is still water inside the intake plenum and it is getting sucked into the engine.
You will need to remove the intake ram housing to remove it all or just wait for it all to evaporate.
Obviously your misfires are from the water drowning out the spark plug(s).
Have you just let it sit and idle for a hour to get good and hot and evaporate the water?
The water vapor will get sucked into the engine but thats no big deal, you just dont want actual water getting sucked it.
On a side note you will have zero carbon build up now.
 
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Old Nov 29, 2011 | 08:05 PM
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Color of smoke - blue (oil), white (coolant), black/gray (mixture rich) ?
 
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Old Nov 29, 2011 | 08:08 PM
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Originally Posted by Spike555
Well then I am going to say that there is still water inside the intake plenum and it is getting sucked into the engine.
You will need to remove the intake ram housing to remove it all or just wait for it all to evaporate.
Obviously your misfires are from the water drowning out the spark plug(s).
Have you just let it sit and idle for a hour to get good and hot and evaporate the water?
The water vapor will get sucked into the engine but thats no big deal, you just dont want actual water getting sucked it.
On a side note you will have zero carbon build up now.
I drove it wheeled it for 6 hrs after that and drove hour and a half home from Rausch Creek. I think any water should be burnt out? Additionally plugs were black fouled bad not steam cleaned.. I'm fairly stumped
 
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Old Nov 29, 2011 | 08:10 PM
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Originally Posted by Savannah Buzz
Color of smoke - blue (oil), white (coolant), black/gray (mixture rich) ?


Its like a white blue but smells of oil. Fluid coming from exhaust is black but could be oil or carbon?
 
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Old Nov 29, 2011 | 08:32 PM
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How has your MPG been since this happened?

Could be your O2's got fried.
 
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Old Nov 29, 2011 | 08:40 PM
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Originally Posted by Spike555
How has your MPG been since this happened?

Could be your O2's got fried.
My mpgs always suck. Hooked up to t4 at indy shop showed o2s working. Cats not very efficient but o2s reading pre and post.

Will try to monitor mpg with scan gauge and going to top up oil tomorrow and drive it for a bit.
 
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Old Nov 29, 2011 | 09:27 PM
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Personally I think things just need some miles to work out the "kinks".
When you sucked in the water you exploded all of the carbon off of the exhaust valves and piston tops, any that got into the cats will be burnt up and probably smoke while it does so.
O2's are reading good, no coolant loss, no oil loss?
I would wait and see, drive it normal for a week, checking the fluids often.
MAF is still plugged in?
 
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