6.7 Diesel doesn't shut off immediately

Tbos · 03-14-2017, 06:15 AM

I noticed this weekend that my new to me 2016 F350 6.7 CC DRW doesn't shut off immediately when I turn the key off. Sometimes I already have the key out before it stops. It never seems to run longer than a couple seconds. Is this normal?

I don't remember it doing this when I first bought it 2 weeks ago. The only thing that has changed is the Dealer had a backup camera system installed. Do you think the camera system could cause the issue?

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**JRTJH** · 03-14-2017, 06:42 AM

Something's wrong, somewhere..... Probably not related to the backup camera, but probably related to the computer they had to "reflash" to get the camera to work with the monitor screen....

One question, do you have the "engine idle shutdown" option? If so, there may be a glitch in the timer function??? I'd take it to the dealership and have them "fix it"... after all, it's a Fix Or Repair Daily.....

Tbos · 03-14-2017, 08:04 AM

As far as I know the truck doesn't have the engine idle shut down feature. I bought it at a Toyota dealer so it will be interesting to see if they try to work on it or if they take it to Ford.

2016 Passport GT 2810BHS, 2016 F350 CC DRW

Javi · 03-14-2017, 08:57 AM

Before you take it to the dealer give this a try...

When you get ready to park the truck after a drive... Stop, put transmission in park... let engine run for 45 seconds to a full minute before turning the key off...

See if that don't fix your problem... If it does I'll explain why it fixed it...

Tbos · 03-14-2017, 09:27 AM

Quote:

Originally Posted by Javi

Before you take it to the dealer give this a try...

When you get ready to park the truck after a drive... Stop, put transmission in park... let engine run for 45 seconds to a full minute before turning the key off...

See if that don't fix your problem... If it does I'll explain why it fixed it...

Will do. I'll let you know this evening.

2016 Passport GT 2810BHS, 2016 F350 CC DRW

**JRTJH** · 03-14-2017, 10:14 AM

Quote:

Originally Posted by Tbos

As far as I know the truck doesn't have the engine idle shut down feature. I bought it at a Toyota dealer so it will be interesting to see if they try to work on it or if they take it to Ford.

2016 Passport GT 2810BHS, 2016 F350 CC DRW

Tbos,

I'm puzzled as to why you'd be taking it back to a Toyota dealer? You may have bought it from them, but if the Ford warranty was properly transferred to you, you're in the Ford system as a "registered owner of an in warranty vehicle" and any Ford service center will honor your warranty.... If they didn't (or if you haven't) transferred the warranty, that would be my "first thing this afternoon, without delay" objective ....

Honestly, the VERY LAST people I'd want trying to work on Ford "computer programs" is a Toyota dealership !!!

pawpaw · 03-14-2017, 10:48 AM

Quote:

Originally Posted by Javi

Before you take it to the dealer give this a try...

When you get ready to park the truck after a drive... Stop, put transmission in park... let engine run for 45 seconds to a full minute before turning the key off...

See if that don't fix your problem... If it does I'll explain why it fixed it...

I'll like to hear the answer myself. Years ago when I was trained to drive semi trucks my trainer (who was also a Texaco driver) told me to always let the engine cool down to prevent run on or dieseling...fuel igniting by engine heat. Turbo's back then would get so hot from running they needed to cool off some before shutting down the engine. New materials used in today's engine heads and blocks may even have sensors so the material can cool off to prevent damage. Just a guess so I'll only bet $2 dollars!!

Tbos · 03-14-2017, 10:56 AM

The reason I was thinking about taking it back to the Toyota dealer is they also provided a 6 mo 6000 mile power train warranty. I know a great Ford diesel mechanic but he no longer works for a dealer and I don't know if his shop is certified to do warranty work yet. I'll have to ask him which Ford dealer in the area he recommends.

2016 Passport GT 2810BHS, 2016 F350 CC DRW

**JRTJH** · 03-14-2017, 11:03 AM

pawpaw,

You're "partly right" and probably "not wrong at all" in what you say. Today's turbos are cooled and lubed by engine oil pumped through them. They do get extremely hot when in use, especially when under a heavy load. So, when you stop them without allowing a "cool down" period, the oil can "cook" or "coke" and damage the turbo bearings. This note is in the Ford Diesel Supplement, on page 16 in the 2015 Owner's Manual:

"To prolong engine life (especially after
extended high speed, high ambient
temperature, or high GVW/GCW operation,
such as heavy loads or heavy trailers), it is
recommended that a hot engine be idled
for 3-5 minutes. This allows the
turbocharged engine to cool down. For
more information on GVW/GCW, see the
Load Carrying chapter in your Owner’s
Manual."

The purpose of the "engine idle shutdown" option is a "timer function" that allows the operator to turn off the key, remove it, leave the vehicle and lock the door. After a set time (I think 4.5 minutes) the ignition will shut down the engine. It's all a convenience. I don't have it, so when I'm towing, I leave the key in the ignition, engine running and just lock the door. I use the number keypad to unlock the door when I get back.... Maybe it's not quite as secure as removing the key, but so far, nobody's stolen my truck

pawpaw · 03-14-2017, 11:14 AM

Personally I always let my engine warm up a bit after starting and let them cool down before shutting them off. After 54 yrs of driving old habits are hard to break!

**JRTJH** · 03-14-2017, 11:18 AM

I do the same. At the price I paid for this truck, I don't plan to have to replace it any time soon.....

rhagfo · 03-14-2017, 11:29 AM

Quote:

Originally Posted by JRTJH

pawpaw,

You're "partly right" and probably "not wrong at all" in what you say. Today's turbos are cooled and lubed by engine oil pumped through them. They do get extremely hot when in use, especially when under a heavy load. So, when you stop them without allowing a "cool down" period, the oil can "cook" or "coke" and damage the turbo bearings. This note is in the Ford Diesel Supplement, on page 16 in the 2015 Owner's Manual:

"To prolong engine life (especially after
extended high speed, high ambient
temperature, or high GVW/GCW operation,
such as heavy loads or heavy trailers), it is
recommended that a hot engine be idled
for 3-5 minutes. This allows the
turbocharged engine to cool down. For
more information on GVW/GCW, see the
Load Carrying chapter in your Owner’s
Manual."

The purpose of the "engine idle shutdown" option is a "timer function" that allows the operator to turn off the key, remove it, leave the vehicle and lock the door. After a set time (I think 4.5 minutes) the ignition will shut down the engine. It's all a convenience. I don't have it, so when I'm towing, I leave the key in the ignition, engine running and just lock the door. I use the number keypad to unlock the door when I get back.... Maybe it's not quite as secure as removing the key, but so far, nobody's stolen my truck

Well could be a cool down timer and the engine has been a little hotter when you have shutdown.
Could also be a electronics, issue in that the only was to stop a diesel engine is cut off it's fuel supply. Now days that could be electronics that disable the injectors. The bottom line there needs tto be a function to stop the flow of fuel into the cylinders.

**JRTJH** · 03-14-2017, 11:32 AM

Tbos,

Ford provides a 36,000 mile/5 year "bumper to bumper" warranty on the truck, a 50,000 mile "driveline warranty" and a 100,000 mile "diesel engine" warranty. I'd be concerned with voiding that "extensive" warranty by allowing an "unauthorized service center" at a Toyota dealership to "tear into/replace components" on that truck. There's nothing to gain from taking it to an "offbrand dealer" for a 6 month/6000 mile warranty when you might jeapordize the much longer and more comprehensive Ford warranty in the process.....

There ain't nuthin' a Toad dealer can do for you that a Ford dealer can't do as well (possibly better).... I'd be for finding a Ford dealer and forget about that 6 month/6000 mile powertrain warranty.

pawpaw · 03-14-2017, 11:35 AM

Went to work for Texaco at age 23 in 1971...early '72 they trained me to drive these things! '72 C-116 Diamond Reo with a 270 hp Cummins and 9 speed roadranger. Hauled 8,800 gallons in a 9,200 gal trailer. These are the tractor's we we're told to let idle down and cool off for a few minutes.

Tbos · 03-14-2017, 01:01 PM

I tried letting it idle for a minute before shutting it off and no change. When I turn the key to off about 1.5 seconds later it shuts off.

2016 Passport GT 2810BHS, 2016 F350 CC DRW

dcg9381 · 03-14-2017, 01:25 PM

Look at this build sticker:
http://www.powerstroke.org/forum/att...timer-idle.jpg

Was your truck optioned for a shut-down timer?

As far as I know, (turbo-saving) shut down timers don't operate on turbo oil temp, they're just dumb timers that force idle time. Not sure if this is what's going on with yours.

rhagfo · 03-14-2017, 01:36 PM

Quote:

Originally Posted by dcg9381

Look at this build sticker:
http://www.powerstroke.org/forum/att...timer-idle.jpg

Was your truck optioned for a shut-down timer?

As far as I know, (turbo-saving) shut down timers don't operate on turbo oil temp, they're just dumb timers that force idle time. Not sure if this is what's going on with yours.

The aftermarket ones I believe come in both variety's, time or temp, temp would require input of an EGT gauge, now days that is already there.

Tbos · 03-14-2017, 02:35 PM

In a GM product there is a sticker in the glove box that includes all the option codes. Does Ford have something similar? I don't have access to the original window sticker.

2016 Passport GT 2810BHS, 2016 F350 CC DRW

**JRTJH** · 03-14-2017, 02:42 PM

type in your VIN at this website, it'll pull up the original window sticker.

http://researchmaniacs.com/VIN-Numbe...cker/Ford.html

Javi · 03-14-2017, 02:46 PM

Quote:

Originally Posted by Tbos

I tried letting it idle for a minute before shutting it off and no change. When I turn the key to off about 1.5 seconds later it shuts off.

2016 Passport GT 2810BHS, 2016 F350 CC DRW

I paid attention to mine this evening and it isn't instantaneous, although normally I don't pay any attention to it... I back in to my driveway, set the parking brake, move the gear shift to park and cut the key off... reach for my cap on the dash, my coffee cup in the console and open the door... Oh... today I hit the window control and rolled the window up... 68 degrees and sunny

before I turned the key off...

For those who have never driven a diesel... this ain't your daddy's truck...

You're gonna hear noises, feel vibrations and smell things that you have never experienced before...

Seriously... Tom, if it continues and bothers you I'd suggest taking it to a Ford dealer for an oil change, along with both fuel filters and ask them to plug it in and check for codes... Also ask them if there are any TBS or Flashes for the truck... Might not be a bad idea to do that anyway...

And everyone covered the reason to let the truck idle for a couple of minutes after a Highway or towing trip...

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