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car runs fine for 5 minutes, then runs like sh*t for 5 minutes, then is fine.

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    car runs fine for 5 minutes, then runs like sh*t for 5 minutes, then is fine.

    I have an '87 325e (m20b27) it starts fine, and runs fine, for the most part. but after i've been driving it for about 5 minutes it starts to run and drive like shit; it almost wont accelerate at all, and the engine buck around a lot. After it runs like that for about 5 more minutes, the problem completely goes away and the car is fine for the rest of the drive.

    If i turn the car off, and turn it back on, shortly after, the problem doesn't come back.

    it's a big problem for me, because it seems like it only kicks in once i get off the country back roads and start getting back into town, where there's traffic and such...

    #2
    Coolant temp sensor?

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      #3
      O2 sensor is dying
      Much wow
      I hate 4 doors

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        #4
        Originally posted by Cabriolet View Post
        O2 sensor is dying
        how certain are you? can you go into any detail?

        bump for more input...

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