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4986Re: Cold start problems below 15F/-10C

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  • pld1952
    Feb 5, 2007
      Some more info here would help, how many miles, were the valves
      adjusted when the compression was checked?, was 4 50lbs low or was it
      50 lbs, what was the reading on the other 5?, etc.

      Phil


      --- In bmwe28@..., "deindieb" <deindieb@...> wrote:
      >
      > Hello All,
      >
      > I've been having some difficulty starting my 86 535i (usa) on
      > particularly cold mornings. Cranks strong and steady, but doesn't
      > catch. After the first time i went and replaced the plugs as they
      > were a bit worn. My mechanic did a compression test and one of the
      > cylinders (4 i think) was a bit low-around 50 lbs. Ran fine since.
      >
      > Above about 20F starts instantly and without hesitation.
      >
      > This morning it was about 10F/-12C and she took about 2 minutes of
      > cranking to start. Then she ran rough and smoky for about 30
      seconds
      > and then was good as new. I know it isn't the battery as battery
      > tests good and i jumped it once while trying to start it. Searching
      > the archives in this group doesn't show much, other web searches
      > suggest replacing the cold start valve.
      >
      > Anyone have an opinion/suggestion?
      >
      > Thanks,
      > Greg
      > New York
      >
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