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pressure leak coming from the no. 1 piston

This is a discussion on pressure leak coming from the no. 1 piston within the Firebird / WS6 forums, part of the Vehicle Specific category; i just replaced my engine. got a BRAND SPANKING NEW engine, and when i took it into the dealer to ...

  1. #1
    386HP 373TQ jwindbigler's Avatar
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    1999 Trans Am 5.7L

    pressure leak coming from the no. 1 piston

    i just replaced my engine. got a BRAND SPANKING NEW engine, and when i took it into the dealer to have them check everything out, my no.1 piston was only putting out 25 pounds of pressure. now with this being a new engine i assumed that the head gaskets werent blown, but i am leading to believe that this is so. so, where could this leak be coming from? there appears to be normal smoke coming from the exhaust.

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    386HP 373TQ jwindbigler's Avatar
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    1999 Trans Am 5.7L

    never mind, i think that its the head gasket, because my car wont stay started. sux huh?

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    Senior Member SeVeReDiStOrTiOn's Avatar
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    did you follow the break-in procedure...or did you just floor it down the road.

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    386HP 373TQ jwindbigler's Avatar
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    yes i did follow the break in procedure, i didnt take it above 3000rpm, and no i didnt "floor it down the road" either.

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    386HP 373TQ jwindbigler's Avatar
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    yes i did follow the break in procedure, i didnt take it above 3000rpm, and no i didnt "floor it down the road" either.

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