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Blue smoke on start ups?

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Old Aug 30, 2008 | 12:20 PM
  #1  
stanger00's Avatar
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Default Blue smoke on start ups?

i dont drive the mustang too much. i probably only put 500 miles on it in the past 2 months. when i fire it up each week i see quite a bit of blue smoke bellowing out from behind the car. what is the car telling me...is oil getting passed my rings? i really dont know what to think about this...any ideas from you guys would be great
 
Old Aug 30, 2008 | 12:21 PM
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sell it before it blows up.
 
Old Aug 30, 2008 | 12:29 PM
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Originally Posted by Stephen4036
sell it before it blows up.
i wouldnt mind it blowing up but i would like it to last until i come back to the states. i have 9 more months left out here and i dont want to spend 600-800 dollars to ship a long block out to me along with other misc. parts and pieces.
 
Old Aug 30, 2008 | 12:32 PM
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Its definitely oil but is it just during start up, or when its already warmed up?

Start up its a valve guide or seal. 2000's and under tend to have this problem. Get a compression test.

Warmed up its a piston ring.
 

Last edited by Steeda97; Aug 30, 2008 at 12:35 PM.
Old Aug 30, 2008 | 12:39 PM
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Originally Posted by Steeda97
Its definitely oil but is it just during start up, or when its already warmed up?

Start up its a valve guide or seal. 2000's and under tend to have this problem. Get a compression test.

Warmed up its a piston ring.

its only on cold starts...

i dont have time to do the compression test...

i guess the 12#'s of boost is starting to take its toll after 26K miles. i put the blower on 3 years ago built motor money has been burning a hole in my pocket for the past year.
 
Old Aug 30, 2008 | 12:41 PM
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After it warms up they should seal up fine.
 
Old Aug 30, 2008 | 02:21 PM
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Valve seals have hardened up a little and the oil leaks pass them and goes into the cyl. When you start the motor the heat burns the oil, hince the blue smoke. Its not a major cost to replace them.
 
Old Aug 30, 2008 | 08:00 PM
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Originally Posted by TUFF 4.6
Valve seals have hardened up a little and the oil leaks pass them and goes into the cyl. When you start the motor the heat burns the oil, hince the blue smoke. Its not a major cost to replace them.
^

90% of the time when its on start-up only, its just valve stem seals and nothing major. like he said, shouldnt be too expensive to fix it.
 
Old Aug 30, 2008 | 10:02 PM
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thanks y'all...at least i know that the car will last a bit longer. well, now i have a real aggressive tune that has 17* of timing on pump gas so any chance of detonation could lead to engine failure and oil getting into my cylinders will be bad news! i have 2 more race weekends to attend! i hope the pig makes it and i get my low 12 second passes in.
 
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