Active Regen - ???????????

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Oct 31, 2024 | 07:14 AM

#16

Overkill2

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From: Western NY

Quote:

Originally Posted by helifixer

I would love to know the answer.
My 16 f550 work truck does it.
My 12 f550 work truck does not
My 19 f450 personal truck does it sometimes
My first guess is California certified clean idle.

My truck has only done it one time because I don't let it idle long, but if IIRC, I was working on the plow and didn't want to keep shutting it on/off, when the idle jumped up and I looked at my iDash and she was in regen. Only time I've seen it... but I don't work my truck like yours do Bart.

Prior to that, never knew about that...

Last edited by Overkill2; Oct 31, 2024 at 07:15 AM. Reason: add to post

Oct 31, 2024 | 08:15 AM

#17

acdii

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Now that I think back, my 99 7.3 would idle up when it was cold out. It had a 3.5" downpipe to a 5" back exhaust with a punch baffle muffler. You could really hear the turbo spool. It sounded like an F-16 warming up on the tarmac.

Oct 31, 2024 | 03:24 PM

#18

augam

Thread Starter

More Turbo

Joined: Jun 2023

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Quote:

Originally Posted by helifixer

I would love to know the answer.
My 16 f550 work truck does it.
My 12 f550 work truck does not
My 19 f450 personal truck does it sometimes
My first guess is California certified clean idle.

I asked Aaron today when I was there and he confirmed it was indeed due to emissions engaging while warming up.

Nov 2, 2024 | 12:23 AM

#19

acdii

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Here’s an odd one. Truck was in a regen yet wasn’t.

wonder how many of them before the smoking stops.

Nov 2, 2024 | 10:39 AM

#20

Overkill2

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Joined: Mar 2017

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From: Western NY

Quote:

Originally Posted by acdii

Here’s an odd one. Truck was in a regen yet wasn’t.

wonder how many of them before the smoking stops.

Interesting... I wonder where EGT2 temp was at...

Probably similar to Zoo dad's

https://www.ford-trucks.com/forums/1763637-fass-egr-filter-up-coming-install-7.html#post21389577

Nov 2, 2024 | 02:58 PM

#21

acdii

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Quote:

Originally Posted by Overkill2

Interesting... I wonder where EGT2 temp was at...

Probably similar to Zoo dad's

https://www.ford-trucks.com/forums/1...l#post21389577

On this truck EGT2 is a tad lower than 1. That why I replaced it with the distance between regen. Only 3&4 get HOT when doing a regen

Nov 2, 2024 | 07:38 PM

#22

Overkill2

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From: Western NY

Quote:

Originally Posted by acdii

On this truck EGT2 is a tad lower than 1. That why I replaced it with the distance between regen. Only 3&4 get HOT when doing a regen

Yep... just figured that out when I read this... the 9th injector. Makes sense. Thanks.

Nov 12, 2024 | 02:26 PM

#23

Bremner14

5th Gear

Joined: Jul 2024

Posts: 5

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My 2019 kicks the idle up frequently when the weather gets colder. Should I be concerned?

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Nov 13, 2024 | 07:23 AM

#24

Overkill2

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From: Western NY

Quote:

Originally Posted by Bremner14

My 2019 kicks the idle up frequently when the weather gets colder. Should I be concerned?

Negative. My 16 does the same when the temps dip close to zero.

Nov 13, 2024 | 08:21 AM

#25

Painted Horse

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Joined: Nov 2005

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From: Kaysville Utah

Quote:

Originally Posted by Overkill2

Interesting... I wonder where EGT2 temp was at...7

EGT1 is pretty close to the exhaust port,
EGT2 is the CAT at the begining of the emission section of the tail pipe
EGT3 is the DPF
EGT4 is just after the SCR

So I always expect 3 &4 to get hotter during regen.

EGT1 heats up when engine is under turbo boost and working

Nov 13, 2024 | 10:32 AM

#26

Overkill2

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From: Western NY

Quote:

Originally Posted by Painted Horse

Thanks... the EGTs for mine will be different since fuel is injected on the exhaust stroke and not in the DPF itself like the 23s plus. I'd expect your EGT2 temp is lower than mine during the short regens the new trucks have.

During my recent regen, EGT2, which is usually always the hottest, was 1200 deg. EGT 4 was at 1100s.