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Fuel pump comes on when I open door

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Emjay33 Enthusiast

Emjay33

Posted
Posted

Dealer told me pretty much the same as everyone. GM knows about it and blah blah. I think, personally, they have a fix, just preparing for the large amount of trucks that will need to be prepared. But who the hell knows

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TJay74
TJay74

Actually the DI engines use two pumps due to how high the fuel pressure requirements are, that is why the 2017+ trucks are now priming the pump when the drivers door opens. It lessens the engine start

newdude
newdude

Lets clear this up.   All GM SIDI engines have TWO fuel pumps. A supply/low pressure pump, and a high pressure pump.   The Supply/Low pressure pump, and the entire fuel system leading to the hi

qwank
qwank

you guys are so impatient. There will be a fix soon. The 14-16s don't do it so I'm sure they'll fix the software.   I don't see what the big deal is.

AZ_SS Enthusiast

AZ_SS

Posted
Posted (edited)

Those who want to jump ship because of an annoyance GM is working on should check the other forums. All manufactures have issues when they come out with new technology. One of the main reasons there are so many people on forums is so they can discuss the issues they are having and get info and reassurance from those in the business or those with the same problems.

 

P.S Brian2015

Gm is not going to void your warranty for installing a cold air kit, specially not for something that is happening with all their new trucks. I have a CAI, shorty headers and a tune, my dealership said the only issue would be if there was a catastrophic engine failure. Then the tune would be an issue if the motor was running outside of normal parameters at the time of the failure.

Edited by AZ_SS
  • Like 2
Brian2015 Enthusiast

Brian2015

Posted
Posted

Thanks, I have the Airaid MIT, I wondered if that was the cause of the stumble so I reinstalled the factory airduct disconnected the battery but no change.

  • 3 weeks later...
NEVER AGAIN A GM Enthusiast

NEVER AGAIN A GM

Posted
Posted

Took truck to another dealer, said it was the afm... I watch it go into v8 mode on a hill and it's bucking...."normal" he said... bastards have me locked into a 3 year lease... this is the last Chevy I'll ever own... bought many new trucks since 1998....will not recommend to anyone I know.

I feel your pain...
NEVER AGAIN A GM Enthusiast

NEVER AGAIN A GM

Posted
Posted

I have a 17 silverado CC z71 and I'm experiencing the same surge type feel. I had a 14 cc, which did the same thing, but not near as often as this 17. Almost feels like a misfire. I've had my truck since December 2016. ONLY ONE DAY, it didn't do it at all and I was very very stoked at how good the truck drove. I gave it 3000k miles to go away, but the surge/hesitation is still here. Scheduled to take my truck in Tuesday. I may force them to keep it till a fix is avail. It bug the heck out of me that these trucks do this as bad as they do.

They should not be selling these trucks to anyone without checking them first.

Even if they have to custom tune each truck with issues.

These are not in expensive trucks.

Therefore we should expect more.

I feel your pain.

NEVER AGAIN A GM Enthusiast

NEVER AGAIN A GM

Posted
Posted

Dealer told me pretty much the same as everyone. GM knows about it and blah blah. I think, personally, they have a fix, just preparing for the large amount of trucks that will need to be prepared. But who the hell knows

Had the fix done today…Drove home tonight…Guess what? It didn’t work at all…
NEVER AGAIN A GM Enthusiast

NEVER AGAIN A GM

Posted
Posted

You are having the same problem as me. GM has got a bulletin out but no fix as of 1/09/2017. GM is aware of the problem. Keep after the dealer for the fix. I think it's a problem in the computer programming.

Had the fix done today…Drove home tonight…Guess what? It didn’t work at all…
NEVER AGAIN A GM Enthusiast

NEVER AGAIN A GM

Posted
Posted

you guys are so impatient. There will be a fix soon. The 14-16s don't do it so I'm sure they'll fix the software.

 

I don't see what the big deal is.

Had the fix done today…Drove home tonight…Guess what? It didn’t work at all…
NEVER AGAIN A GM Enthusiast

NEVER AGAIN A GM

Posted
Posted

GM Bulletin 17-NA-070.pdf

 

Here is the new GM fix.

 

Had the fix done today

 

Drove home tonightGuess what? It didnt work at all

 

Please if anyone has this fix let me know if it works for you.

 

Shame on you GM for selling these trucks when you know they had these issues.

GM Bulletin 17-NA-070.pdf

GM Bulletin 17-NA-070.pdf

GM Bulletin 17-NA-070.pdf

qwank Senior Enthusiast

qwank

Posted
Posted (edited)

Had the fix done today…Drove home tonight…Guess what? It didn’t work at all…

 

I forgot to update this that the new software for the TCM was out as of the 13th.

 

I haven't done mine yet, or any customer's trucks so I can't comment on if I've seen any differences yet.

Edited by qwank
NEVER AGAIN A GM Enthusiast

NEVER AGAIN A GM

Posted
Posted (edited)
GM Bulletin 17-NA-070.pdf

.02....Oh that's a great idea! Get a custom tune which will invalidate the warranty and just give GM the excuse they need to tell you to disappear altogether.

 

 

Does anyone have a printable version of the tsb #17-NA-070? I bought a 17 silverado 2 weeks ago and I noticed when cruising at 45-60 mph with the tach between 1k-1500 and when starting up a hill and slowly increasing the pedal to keep my speed the truck starts to feel like its miss firing and starts to buck slightly but other then that the truck runs and drives great. Going to call my dealer tomorrow and see what they have to say but I'd like to have a printout of the tsb.

 

Sorry to hear about your truck Dleye, its very discouraging that Gm/ dealer will not stand behind they're product and take care of you. Makes me wonder if it was a Ford, Dodge, or any other manufacturers truck, how they'd handle this.

 

 

GM Bulletin 17-NA-070.pdfGM Bulletin 17-NA-070.pdf

 

GM Bulletin 17-NA-070.pdf

GM Bulletin 17-NA-070.pdf

GM Bulletin 17-NA-070.pdf

Edited by Dleye
Isaac Allen New Member

Isaac Allen

Posted
Posted

Figured I'd let everyone know I flashed my 2017 with ECM/TCM tuning from Blackbear Performance and the issue is completely gone. The truck also drives so much better! 100% satisfied.

  • Like 2
Aaron1085 Senior Enthusiast

Aaron1085

Posted
Posted

2015 Sierra 5.3 here. I hear the same mechanical sound when I exit the truck. Almost like a pump is turning on.

 

 

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