Fish Bite/Chuggle

Scuba78 · October 31, 2017

After 8 moths of back and forth with GM and my dealership I'm throwing in the towel. My Local dealer has been great and done all they can to help, but GM is useless. They sent a field Engineer out with my Chuggle and fish Bite issue. They agree it is there but it is minimal and the Official Verdict is that the truck is designed to run this way. The dealership tried to argue with me to the tech and his only reply was he has seen worse. My tech told him last couple times we drove it was worse when we took it out the past few times, and re-flash has not worked. the Patch they came out with has not worked. So I have to drive a truck that is designed to drive like crap. My Solution, the Black Bear Tuner is on its way to my house. I am positive it is a tuning issue. GM is in my Blood but this pisses me off to no end. I shouldn't have to buy the tuner to correct a factory issue under warranty. The dealer is going to try and help me and reimburse my money for the tuner if he can get it approved, but he also wants me to come back and let him know if this solves the issue to shove it in the Engineers faces at his next Tech Meeting. Had to rant a bit, but cant stand when a company wont stand behind their product, and give bullsh*t answers.

Z2Z · October 31, 2017

Whats a Fish Bite/Chuggle?

Scuba78 · October 31, 2017

it is a stuttering problem in the new trucks. GM knows it is there, put out a patch for it and they claim it fixed 85% of the trucks. it happens constantly on my from 50-60 under steady cruise to light acceleration. Local tech and i duplicated it every time. Field service engineer said it wasn't worth it to fix . Considered it normal operation.

aseibel · October 31, 2017

Is it due to AFM? running at that speed with light throttle would probably send you to v4 mode.

Does the truck do the same thing at that speed if you shift into M?

Scuba78 · October 31, 2017

No. it does it locked in V8 mode. Tech and i drove for an hour playing with all the functions. Bottom line, in V8 mode, torque Converter locked it feels like a fish biting on the line as you steady cruise or very light acceleration. comes down to Tune issue. not enough fuel. when I install the programmer we should be able to confirm it if it smooths out. I have been working with the dealer and the Tech for quite some time. I'm pretty competent with cars and the dealer knows my background. we have spent a lot of time trying to narrow this down, then the engineer says its normal...not too happy with them

aseibel · October 31, 2017

When GM doesn't understand the problem or know how to fix it, they say its "normal". I'm half joking, but you are not the first person to post a similar experience on here.

Good luck, I hope the tuner makes your truck more enjoyable to drive.

Scuba78 · October 31, 2017

i know, i am one of 6 at this dealership with the same issue. almost 50K for a truck that drives like crap, sucks

roundhouse · November 8, 2017

I drive a 17 owned by the company I work for and have noticed the same thing

it's very irritating

no wonder GM had to get bailed out by the fedgov

I have not taken it in for repairs because I know GM is too stupid to be able to fix it

I figured it was something to do with the CAFE ratings , it's really irritating that this stupid truck will up shift into 6th gear doing 35 mph uphill

so that when go up the next slight hill in a residential neighborhood mashing the gas pedal does nothing to increase power until you totally floor it causing it to slam down into 3rd and take off like a rocket , there is no way to accelerate in between these two modes unless you drive it in the Manual mode and shift it your self

Using the trailer tow mode helps but the "grade braking " slamming down gears every time you ease off the gas pedal is irritating too

Lexus had rev matching downshifts about ten years ago and GM can't do it ??

it's also hard to believe that they sell a vehicle without power mirrors

and if you don't buy the option package with the remote control to lock and unlock the doors GM has purposely written the software so it can never be added later

The previous company i worked for had crewmax tundras and wow, that's the truck to have . Plenty of power and a very intuitive transmission , rides a hell of a lot better too

Edited November 8, 2017 by roundhouse

2017SierraSLT · November 8, 2017

4 minutes ago, roundhouse said:

The previous company i worked for had crewmax tundras and wow, that's the truck to have . Plenty of power and a very intuitive transmission , rides a hell of a lot better too

Tundras are the truck to have if you like 12MPG, bloated styling, a frame as rigid as a wet noodle, and a cheap interior with outdated infotainment systems. Real upgrade, I'd say..

Crobinson16 · November 8, 2017

Have any of you had the tsb done. 17-NA-070

roundhouse · November 8, 2017

39 minutes ago, 2017SierraSLT said:

Tundras are the truck to have if you like 12MPG, bloated styling, a frame as rigid as a wet noodle, and a cheap interior with outdated infotainment systems. Real upgrade, I'd say..

The infotainment doesn't interest me at all and I liked that the tundra I drove didn't have one at all

. The GM one is irritating since there is apparently no way to dim it at night , so when I drive five hours in the dark I have a tv screen shining in my face the entire time

I dont watch videos or text while I'm driving so the tv screen in the dash is not important to me at all

butnondon sometimes wonder how much apply paid GM to write the software so that google maps will not appear on the tv screen in the dash , only apply maps will appear

the Tundra I drove got 16in town and 19 on the road , the Chevy gets 13 in town and 15 on the road and rides worse than some of my 18 wheelers did

. Apparently the flexy frame soaks up a lot of bumps

I'm considering removing a couple of leafs from the rear of the Chevy to soften the ride and eliminate the stupid looking of the back end sitting 8" higher than the front

no no chuggle problem with the Yota though

.

Edited November 8, 2017 by roundhouse

2017SierraSLT · November 8, 2017

There is something very wrong with your truck if it only gets 13/15. I consistently get 16.5 city and 23 highway with my 5.3 and a lead foot.

roundhouse · November 8, 2017

27 minutes ago, 2017SierraSLT said:

There is something very wrong with your truck if it only gets 13/15. I consistently get 16.5 city and 23 highway with my 5.3 and a lead foot.

The one I drive is a crew cab 4wd 3/4 ton with a 6.0

Edit worse than I thought

:. Just walked out and checked

Monday I drove from Atlanta to Jacksonville and back yesterday

cruise set on 75 , interstate the entire trip

computer says 14.7 for the trip

Edited November 8, 2017 by roundhouse

2017SierraSLT · November 8, 2017

Well, that makes far more sense. The Vortec 6.0, although known for durability and endurance, is not known for outstanding fuel economy.

Also, it is not a fair comparasion to compare a half ton Toyota to a three quarter ton GM in regards to ride and economy. All three quarter tons ride harshly when empty, but the tradeoff is a lot more load capacity. They also weigh a lot more than a half ton, thus affecting fuel economy numbers.

Scuba78 · November 8, 2017

1 hour ago, Crobinson16 said:

Have any of you had the tsb done. 17-NA-070

i have had every TSB and update available. Noting from factory has helped, but i solved the issue myself, with help from Black Bear Performance!!! i sent them my read file and told them the issues im having, they sent me the tune last night ant this is the first day with the truck after 20k miles it didnt lug and chug at ALL! I will be going to my dealer to show them the results to just shake it in the engineers face. What good is a warranty if they wont do anything about it anyway!