ECM flash - got worse, very sluggish at times

Hi all:

After seeing the TSB thread about pinging a few months ago, I asked my service advisor about getting the flash done, while I was there for an oil change. At the time, he asked if I was experiencing pinging, and I couldn't specifically recall that I had, but I told him I'd pay attention to it. After another month or so of paying attention to it, I made an appt to go back in to have it done. (Also got my brakes done at the same time.) It's been about 3 weeks after the job and I can say that this thing is running pretty bad, on occasion. Throttle response has taken a nosedive. On certain times of day, usually later in the day, the acceleration is seemingly non-existent. It's very sluggish, and doesn't have the pep that it used to. This morning, even, while temps were around 80F, I even heard some faint pinging while it was struggling to accelerate. I'm guessing I need to take it back in, but what should I have them do? Just tell them to find the problem? I'm not very well-versed on this stuff, so please help me formulate the words.

Thanks!

 

pull the negative battery cable n let the truck sit for an hour. Then reattach n drive her over the next gas tank more aggressively. Report back.

 

This^^^^

You needed brakes on a 2013 already? Damn, that is crazy.

 

Agreed.

 

Snicker all you wish. Some of our bridges and interstate ramps are steep.

But if we assume the dealer didn't take advantage of a situation, and the driver is not a 'brake rider', most of our wear is in the winter time.

From wandering snowbirds getting in our way.

 

I drive about 25,000mi a year. I'm in real estate(property management). I got 70,000 miles out of the original brakes. Not bad, huh? LoL

I'll try the neg. cable removal tonight.

 

I got it. Mine was a joke too. Well, other than dodging snowbirds. That's just a winter expectation.

OP, 70k on your OE brakes is great. Hope you get your drivability sorted.