buzzing sound when shut off - Ford Powerstroke Diesel Forum
 
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post #1 of 7 Old 01-19-2009, 06:43 PM Thread Starter
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buzzing sound when shut off

my truck always made a buzzing sound for like 15 sec after i shut it off, but i had never seen another 6.0 do it.. so last week i had it in the shop, and they replaced the fuel pump and updated my PCM, whats the deal with that? funny part is i didnt notice it wasnt doing it until today!
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post #2 of 7 Old 01-21-2009, 03:15 AM
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If it's still buzzing on shutdown then you don't have the latest flash (or the dealership doesn't). There is a later flash that heats the injectors at start up (similar to the glowplugs but different) to aid with cold starts. The buzzing you hear at shutdown is the spool valves being cycled to "empty" them of oil.

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post #3 of 7 Old 01-21-2009, 04:33 AM
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^^^ What he said.

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post #4 of 7 Old 01-21-2009, 04:47 AM Thread Starter
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no it does not do it anymore, is that the way i want it, lol ... THANX!
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post #5 of 7 Old 01-21-2009, 07:09 AM
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Originally Posted by kalebBstrokin View Post
no it does not do it anymore, is that the way i want it, lol ... THANX!
In a word, yes.
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post #6 of 7 Old 01-21-2009, 07:14 AM
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My boss's "old" 07 did this too...always wondered what caused it!

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post #7 of 7 Old 01-22-2009, 08:09 AM
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When was the latest flash released? Last flash my truck had was due to recall 06E17.

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