2011 F350 Lariat CCLB FX4 - Ford Powerstroke Diesel Forum
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  #1  
Old 08-02-2014, 01:54 AM
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2011 F350 Lariat CCLB FX4

My truck sometime makes a buzzing noise after I shut it off. It sounded more like a pump. Not sure exactly what it was. It drives fine, gauges are all normal.

I bought this truck used about a month and half ago. It came with H&S Mini. I leave it a performance all the time because I find the transmission shifts better in performance mode.

Where do you guys think the noise is coming from? Thanks for any info that you guys can provide.


RL
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Old 08-09-2014, 03:01 AM
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Any update on this???

I was told that this was the Urea being transferred back into the tank.... lol

I didn't believe that for one minute, but who knows?!?!?!?!

I'd love to know what you figured out
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Old 08-09-2014, 04:02 AM
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Mine does the same thing. Truck did it stock and still does it deleted.
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Old 08-09-2014, 06:21 AM
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Quote:
Originally Posted by NotQuik View Post
Mine does the same thing. Truck did it stock and still does it deleted.

Same here. Mine did it stock and still does it deleted. I heard a new 2015 doing it the other day. I'm not too worried. It is kind of weird though.


2013 F250 6.7 PSD
Crewcab FX4 6.5 ft bed
Factory 18" Michellins 3.55 gears
DPF and EGR delete 51" muffler
Punch it Performance tunes
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Old 08-09-2014, 06:27 PM
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Mine has done it since day one. That clicking noise sounds like a revolver hammer being pulled back. I hope I soon get used to it, it scares the pooey out of me everytime! (I've been shot at a time or two)

Last edited by RJC2; 08-09-2014 at 06:34 PM.
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Old 08-09-2014, 07:02 PM
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DEF tank purging the lines. Once the truck turns off it sucks the fluid back into the tank, stuffs really corrosive so it helps the lines live a little longer. Plus if you live in colder climates it will freeze and blow up all the lines.
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Old 08-10-2014, 02:00 AM
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My truck is a daily drive back and forth to work 40 minutes or so one way. The buzzing noise doesn't happen in the morning only in the evening when I get home in the peak of heat around 5:30PM. Seems like I'm not the only one experiencing this noise. It does it only once in a while when it's really hot. I love this truck though. I'm getting 17MPG city/highway combined. I drove it to Oklahoma, got 20MPG.. Awesome for a HUGE truck... LOL! I haven't tow my 31' travel trailer yet but I can't wait.

How would I know my truck is EGR or DPF "deleted"? Thanks!
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Old 08-10-2014, 03:47 AM
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If the truck doesn't get up to full operating temp in the morning commute then the DEF won't start dosing so then no need to purge the lines.

As far as deletes go, if you look under the truck your exhaust will be a normal tube front to back or a 6 foot long odd shaped canister looking thing. That's a good start. And it'll have a tuner if it's deleted.
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Old 08-10-2014, 04:06 AM
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Hi HighHP, my truck came with H&S Mini when I bought it also it doesn't have a catalytic converter.... Exhaust is a straight pipe except for a small odd looking muffler. LOL...
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Old 08-10-2014, 05:55 AM
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Quote:
Originally Posted by Rambilt View Post
Hi HighHP, my truck came with H&S Mini when I bought it also it doesn't have a catalytic converter.... Exhaust is a straight pipe except for a small odd looking muffler. LOL...

Sounds like you are deleted then.


2013 F250 6.7 PSD
Crewcab FX4 6.5 ft bed
Factory 18" Michellins 3.55 gears
DPF and EGR delete 51" muffler
Punch it Performance tunes
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