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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

Very low boost during regen.....

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Old May 22, 2010 | 04:05 AM
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Very low boost during regen.....

I noticed a couple regens ago that my boost dropped off very low during the regen. I was travelling at hwy speed (100-110km/h) on a relatively flat straight road. My boost while not in regen mode is running roughly around 6-10psi, when the regen started i noticed it dropping off really low, roughly 1-3psi. I hadn't changed the way I was driving at all.... I have also noticed my regen is coming on more frequently, roughly every 450-500kms. I drive my truck very conservatively to help increase my fuel mileage which is good on the long highway drives I have been taking. (17-18mpg) Not sure if I should be concerned about this or not, any info would be appreciated.
 
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Old May 22, 2010 | 04:08 AM
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I should also mention that at one point I traveled up a fairly steep long hill and just out of curiosity I stepped on it to see what kind of boost I could generate, I was able to generate about 22psi, when normally under those circumstances I would see around 33-38psi. 38psi if I was towing...
 
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Old May 22, 2010 | 06:20 AM
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your boost is considered within normal limits, some do have that drop off while in regen.
 
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