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General VW Discussion This is a place for General VW topics (the company, not your vehicle). General topics about a specific vehicle should be posted in the General TDI Dicussion Forum sections for that vehicle platform. A4, A3 & B4, B5, etc.

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Old June 5th, 2003, 19:15   #1
Frank M
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Default Trivia Question #9

The LEAST likely cause of excessive blue smoke in the exhaust of a turbocharged engine is:

1: PCV valve stuck in the open position
2: worn turbocharger seals
3: worn valve guides
4: worn piston rings
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Old June 5th, 2003, 20:02   #2
FowVay
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Default Trivia Question #9

I would choose numero UNO. A open PCV should not cause oil to be in the combustion chamber other than what is being vaporized through normal operational conditions.
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Old June 5th, 2003, 23:35   #3
no rest till
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Default Trivia Question #9

1, because 2,3,and 4 would cause smoke
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Old June 6th, 2003, 03:48   #4
runonbeer
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Location: Austin, TX/Chapel Hill, NC
Fuel Economy: amazing/excellent/still pretty good
Default Trivia Question #9

1
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Old June 6th, 2003, 06:30   #5
Judson
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Default Trivia Question #9

Morning, Frank.

3.

Jud.
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Old June 6th, 2003, 06:32   #6
dieseldorf
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Default Trivia Question #9

1.
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Old June 6th, 2003, 13:49   #7
George
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Default Trivia Question #9

Heck, what do I know? I'll opt for #2. Seems to me all the others could result in more oil burning, hence the smoke.
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Old June 10th, 2003, 04:19   #8
Lug_Nut
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Location: Sterling, Massachusetts. USA
Fuel Economy: 116 mpg(e), 36 mpg gas, 100 mpg combined
Default Trivia Question #9

#1. The PCV valve is open part of the time when it functions normally. Any time there is positive crankcase pressure, this valve is venting. If the normal operation of this valve does not cause excessive smoke, why would extra-normal operation?
That's my rationalization, and I'm sticking to it.
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Old June 10th, 2003, 19:36   #9
Frank M
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Default Trivia Question #9

The correct answer is #1
an open PCV will not cause the engine to ingest oil, or enough to make any smoke.
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Old June 11th, 2003, 11:42   #10
Judson
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Default Trivia Question #9

Huh. I thought domestics had real problems with PCV valves,
that's why I went with it.

Jud.
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