Annoyed

[bigdeer1]

Just curious how long have you had the exhaust on the truck, and how long after that did you notice the weird shifting. It could be that the computer is confused and is trying to relearn its shifting pattern taking into the account of possible loss of back pressure. I've always done this rule of thumb... When ever adding a performance part to a vehicle I disconnect the battery for an extended period of time. Or disconnect the positive and ground it on something (not the negative terminal tho) it drains the memory on the ECU/PCM and the truck will relearn from a fresh start.

 

Tapatalk via Moto X

It was immediate after the exhaust that the truck shifting pattern changed... Maybe I just

Didn't notixe because I couldn't hear it shift? Idk it just has me thinking maybe it shifted like that stock and I never noticed... Maybe not?

[MikeNH]

Sorry but I have no idea... from my knowledge all I remember is park-reverse-neutral-drive. After that I have no idea.. M4 then m5 I assume?

 

You just spend tens of thousands of dollars. Read the manual.

 

After D is M- once in M mode you select the highest gear you want it to use with the rocker switch on the shifter.

[bigdeer1]

Any chance you kept the parts that were cut off or maybe they still have them and haven't hauled their scrap parts? Seems the easiest solution is to reverse what you did and the problem is solved, sans the $, but again no drone or shift concerns. Keep us posted.

 

 

Honestly I have no idea.. My luck they threw it away.. If they did throw it all away and I can't get the factory exhaust put back on I'm stuck... I guess I will have to deal with it or get a tune or possibly that plug in that disables afm...

[bigdeer1]

You just spend tens of thousands of dollars. Read the manual.

 

After D is M- once in M mode you select the highest gear you want it to use with the rocker switch on the shifter.

 

Yes I spent a lot of money on a truck.. I shouldn't have to do that.. I should be able to throw it in drive and go

[MikeNH]

You just spend tens of thousands of dollars. Read the manual.

After D is M- once in M mode you select the highest gear you want it to use with the rocker switch on the shifter.

Yes I spent a lot of money on a truck.. I shouldn't have to do that.. I should be able to throw it in drive and go

 

Totally disagree. This is a vehicle not a washing machine. But whatever. If you bothered to crack open the manual you never would've had to get upset about how it shifts.

 

That said, I managed to sort out manual mode without needing to read anything so it is what it is.

[bigdeer1]

Totally disagree. This is a vehicle not a washing machine. But whatever. If you bothered to crack open the manual you never would've had to get upset about how it shifts.

 

That said, I managed to sort out manual mode without needing to read anything so it is what it is.

Say want you will. 40 grand this thing should be able to shift some what correctly... Idk what the issues is. Maybe there is no issue like I said. Maybe I never noticed because the truck was to quiet to hear anything.. But one thing I do no is that it seems to have start to shift differently ever since the exhaust l... There is no reason for having to put the truck in a different driving move for it to drive "correctly". If I wanted to do that I would have bought a manual so I can pick what gears I wanna run.

[Ljrussell94]

I just can't understand how an exhaust can make that big of impact on how the truck runs.. It feels like a completely different truck.. Flowmaster isn't some cheap knock off brand.. There products have been around for years. I don't see the muffler causing that much of a change to make the truck run as it does today.

 

It seems to have lost power... Is it because of the muffler? Idk... Maybe I never noticed before because u couldn't hear the truck before but it sure seems like the power took a hit after the flow master...

Yeah i agree flowmaster is a big name brand. But from my experience on my previous truck that flowmaster seemed to not run as well as stock. Not bad but definitely not better. The borla i feel was much better. If i were you id throw a borla or magnaflow on instead. Keep the piping

[MikeNH]

You wouldn't have gotten a manual because no one offers the boat anchors anymore.

 

And you're making a mountain out of a damn molehill. Putting it into M takes an extra few seconds and I've managed to do it multiple times a day for almost three years and nearly 60,000 miles. ALL the truck makers tune trucks to get the highest numbers in EPA testing because people are tightwads and want trucks to get the same MPGs as a large sedan did a decade ago. Nothing will change that because now they have to meet even higher targets thanks to the feds. So because of that each time I hop in and drive I'll move the shifter and extra click and push the rocker a few times to select the gears I want. Hell, most of the time I do it as I'm driving off so it doesn't even take time.

[bigdeer1]

Yeah i agree flowmaster is a big name brand. But from my experience on my previous truck that flowmaster seemed to not run as well as stock. Not bad but definitely not better. The borla i feel was much better. If i were you id throw a borla or magnaflow on instead. Keep the piping

I'm just afraid that ill waste another 75-150$ just to find out that it's gonna shift the same. But in reality I don't know if this is how the truck acted before the exhaust because I never noticed therefore I'm assuming it was normal before... Today especially... On the highway it constantly wanted to stay in 5th probably because of the strong winds... Then it would shift to 6th seconds later back to 5th for a half mile to proceed to up shift ... Vicious cycle over and over... People next to me who could hear the truck probably laughed

[anthony2558]

Bigdeer1, do like I said and drain the ECU/PCM. Let the computer relearn with its new exhaust. It will need maybe a 100 miles to relearn. It should be better by then. In the meantime try not to listen to all the negative post filled with arrogance and lack of help.

 

Tapatalk via Moto X

 

 

[bigdeer1]

Bigdeer1, do like I said and drain the ECU/PCM. Let the computer relearn with its new exhaust. It will need maybe a 100 miles to relearn. It should be better by then. In the meantime try not to listen to all the negative post filled with arrogance and lack of help.

 

Tapatalk via Moto X

Absolutely. I appreciate the advice and I will try this tomorrow morning.

[MikeNH]

Battery disconnecting to "clear" the ECM is a myth. Any changes from it are imaginary. BlackBear explained this a couple months ago.

[RyanbabZ71]

Instead of a tune you can look into the range module. Plugs into the ODBII port

[Ljrussell94]

 

I'm just afraid that ill waste another 75-150$ just to find out that it's gonna shift the same. But in reality I don't know if this is how the truck acted before the exhaust because I never noticed therefore I'm assuming it was normal before... Today especially... On the highway it constantly wanted to stay in 5th probably because of the strong winds... Then it would shift to 6th seconds later back to 5th for a half mile to proceed to up shift ... Vicious cycle over and over... People next to me who could hear the truck probably laughed

Yes im not sure about these new ones. But im jus tellin you about my previous similar experience. A custom tune will definitely help though

[bigdeer1]

I have also ran a few tanks of e85 along with 87.. Maybe that has something To do with the lack of power causing the truck to constantly shift to keep up... & my mpg has been s$&@... 9-10... It has been cold but c'mon.. Really!? 140 miles left till Empty and that's at a half tank!!