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quick question.( engine )

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Old Aug 9, 2004 | 10:27 PM
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From: ft lauderdale fl
Default quick question.( engine )

i seem to be getting a puff of white smoke at cold start ....and i hear what sounds to be a bottom knock ? any ideas from anyone would be a help ! thanxs ...84 auto .....
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Old Aug 9, 2004 | 10:30 PM
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White smoke is water. gray/blue smoke is oil and black smoke is to much fuel.

Does it run fine?
If so and it's only at start up, I would not worry about it.
Keep an eye on coolant and oil levels.
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Old Aug 9, 2004 | 10:36 PM
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Originally Posted by whfla
i seem to be getting a puff of white smoke at cold start ....and i hear what sounds to be a bottom knock ? any ideas from anyone would be a help ! thanxs ...84 auto .....
Could be just a little condensation in your exhaust.
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Old Aug 9, 2004 | 10:36 PM
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Are you sure it is white? Even though my 87 only has 42,000 on it I had to replace the valve seals. They were very dried out and cracked as I removed them. This caused an embarassing discharge of smoke upon startup after it had set for a while.
Good luck!
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Old Aug 9, 2004 | 10:49 PM
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If you use 5W or 10W - 20 or 30W oil switch to 30 or 40 weight, esp if your car has >75 K miles. That'll help with the knock sound when cold and if it's blue smoke, not condensation, it'll slow oil seepage around "O" rings when not in use. I don't think there's any advantage to using multi grade oils in higher mileage cars, especially in warmer climates such as Fla. Bill
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Old Aug 9, 2004 | 11:09 PM
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OK!
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Old Aug 10, 2004 | 12:20 AM
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you need to make sure of the color
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Old Aug 10, 2004 | 01:05 AM
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If i were you i would try and pinpoint that knocking noise...
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