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push button start warning on a diesel

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Old Apr 9, 2019 | 08:34 AM
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push button start warning on a diesel

so my 2019 6.7 has push bottom start....something to watch out for is.....

if you hold the start button down with out hitting the brakes..that's supposed to start the fuel pump.

this something you need to do if you drain fuel from the fuel / water separator or if you change the filters to purge the air before starting.

BUT...if you push the start button with the door open...thinking the pump will start so you can purge the air...THE TRUCK WILL START IF THE DOOR IS OPEN. This will be a problem if you replace the engine bay filter.
 
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Old Apr 9, 2019 | 09:33 AM
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My 2017 did not do this. I have not tried on my 2019.
 
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Old Apr 9, 2019 | 09:47 AM
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I just changed both filters Sunday and mine didn’t start. Had the door open so I could lean in and push the start button and listen while the pump pushed fuel. Did it 3 times w 30 seconds each time.
Thats not good if yours started w your foot not on the brake
 
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Old Apr 9, 2019 | 09:51 AM
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Either you were touching the brake or there is a problem your dealer should check out. Yes, this is how you prime the fuel filters, but it should not start unless the brake is depressed. Do you have any other glitches?
 
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Old Apr 9, 2019 | 10:00 AM
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I was standing on the ground with the door open. Pressed the start button to prime the pump. Truck started.

my truck will start if the door is open and the brake is not pressed

so I thought this was a case of keeping door closed .....now I’m wondering if I need to take it in.


normally I have to tap the brake to start it.....but normally me door is closed.

 
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Old Apr 9, 2019 | 10:20 AM
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go outside and try it again.. maybe a video?
 
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Old Apr 9, 2019 | 10:43 AM
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Originally Posted by Toledo
go outside and try it again.. maybe a video?
Ill do a video when I get home.

standing outside, door open, push start button
 
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Old Apr 9, 2019 | 10:55 AM
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I wonder if the door being open allows the key to be acknowledged. is the key still in your pocket with you? try leaving it elsewhere
 
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Old Apr 9, 2019 | 11:01 AM
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Something is wrong with your truck.
Truck should not start unless brake pedal is pushed.

I changed my fuel filters on my 2019 this weekend and I pushed the start button only and fuel pump came on like it is supposed to and I could hear the new filters filling with fuel.
I did this 2X before I held the brake pedal and started it.
 
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Old Apr 9, 2019 | 11:03 AM
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Originally Posted by Toledo
I wonder if the door being open allows the key to be acknowledged. is the key still in your pocket with you? try leaving it elsewhere

something to try...but if I leave the key else where the door should stay locked and not let me in.


issue here is while doing the fuel system priming with no foot on brake...pushing the button should prime the fuel system and if I keep it down...I should get a prompt that I am in full accessory mode.

the problem is with the door open...I don’t get a press brake to start...and it does not prompt that I am in full accessory mode...it just starts with no tap on brake if the door is open. With door closed it behaves correctly.
 
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Old Apr 9, 2019 | 11:14 AM
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Originally Posted by speakerfritz
something to try...but if I leave the key else where the door should stay locked and not let me in.


issue here is while doing the fuel system priming with no foot on brake...pushing the button should prime the fuel system and if I keep it down...I should get a prompt that I am in full accessory mode.

the problem is with the door open...I don’t get a press brake to start...and it does not prompt that I am in full accessory mode...it just starts with no tap on brake if the door is open. With door closed it behaves correctly.
very strange indeed, sounds like a trip to the dealership is coming up.
 
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Old Apr 9, 2019 | 11:16 AM
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That's potentially dangerous and might be indicative of other problems. I'd definitely take it in.
 
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Old Apr 9, 2019 | 11:38 AM
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Are you leaving the button pressed? Or are you pressing it to get it to ACC mode and releasing?
 
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Old Apr 9, 2019 | 04:05 PM
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Old Apr 9, 2019 | 04:06 PM
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I posted a video

1. Push button start no brake while standing outside with door open

2. Normal push button brake start door closed

3. Sting inside cab, door open, push button start no brake.


so technically I could prime the fuel system as long as I keep my door closed.

 
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