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need help

This is a discussion on need help within the General Help forums, part of the LSx Technical Help Section category; need some help. my trans am will run fine for 10-40 min then just shut off suddenly no studder. it ...

  1. #1
    Senior Member 440 rwhp trans am's Avatar
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    red ta orange gto
    97 trans am 06 gto

    need help

    need some help. my trans am will run fine for 10-40 min then just shut off suddenly no studder. it will not start for a few hours then run fine and shut off again. i have replaced the whole ignition system, alternater, and battery. im sooooo stumped. i need help!

  2. #2
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    Don't know what's going on. Friend of mine with a '95 did something similar and it turned out to be the coil. No codes? Opti?

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    Grand Imperial Wizard Sarge's Avatar
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    Retired Outlaw Sum Bitch

    Look...nobody is going to diagnose this over the Internet...you have tons of new equipment and something shit the bed....get it to the shop that put all that shit on and get it diagnosed.
    This is my signature. It is mine. Nobody else has one like it.

  4. #4
    Senior Member 440 rwhp trans am's Avatar
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    red ta orange gto
    97 trans am 06 gto

    Quote Originally Posted by Sarge View Post
    Look...nobody is going to diagnose this over the Internet...you have tons of new equipment and something shit the bed....get it to the shop that put all that shit on and get it diagnosed.
    i allready took it to a shop and they just replace things i have allready replaced with no luck. i need to find someone who specializes in gm's

  5. #5
    Member OreoLt1's Avatar
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    I would scope(oscilliscope) the crank sensor. What you describe fits the profile of a failing crank sensor but don't hold me to it. Also need to check fuel pressure(if the pump is starting to fail), or spark(if s driver in the PCM is faulty to fire the injectors or coils) when the vehicle shuts off.

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