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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Hmmm,is this normal?

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Old Jul 3, 2007 | 02:38 PM
  #1  
BmanRRT's Avatar
BmanRRT
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Hmmm,is this normal?

Ok, I just noticed this, but who knows how long it's been this way. I noticed when I had the radio off and it was quiet that when I let off the gas from highway speeds or a little less, the engine is silent for a few seconds, then I hear it start to idle again...it just struck me as odd, but it seems to be running fine and the RPM's on the tack sit there at about 1k, just no diesel engine noise. anyone notice the same?
 
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Old Jul 3, 2007 | 02:46 PM
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It's normal. The injectors are shut off when coasting under certain conditions.
 
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Old Jul 3, 2007 | 02:50 PM
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tttario
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I notice this too. I thought it was just my ears playing tricks with me. I think the 6.0 is actually quieter above 1000 RPM than it is at idle???

Any techie's got an answer for this one???
 
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Old Jul 3, 2007 | 03:02 PM
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Hey.... my radio is so loud I can't hear anything... heck... is it a diesel or a gasser I am driving?????

By turning the radio up...

1) I hear no turbo farts.

2) I hear no injectors

3) I donot hear turbo wine when accelerating

4) I do not hear my kids in the back seat

5) I do not hear my wife yelling at me

6) ...and I do nothear the police siren due to speeding (oops)!!!
 
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Old Jul 3, 2007 | 03:07 PM
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The sound is normal when it coasts. Both of my 6.0 trucks and even my 06 cummins get very quiet when you let off the pedal for a few seconds.
 
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Old Jul 3, 2007 | 03:49 PM
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I did some hill climbing in 4 low and on the way down a hill the truck barely made a noise. It was kinda wierd but understandable. The gears were working more than the engine was.
 
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Old Jul 3, 2007 | 07:59 PM
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I think most all our diesels have that period of "silence" as the engine "coasts down".
 
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