PCM Reprogram

[ethosb]

Dealer wants to reprogram the PCM after changing 2 coil packs. Is it necessary? If so, cost and what does it do?

 

[1bad4.6l]

Why? did they say, It may be a factory recall kinda thing and they just want to do it while the car is there.

 

[pektel]

Right. A PCM reflash is not needed just for swapping a couple coils. But if they're doing it for free, what the hell, right?

 

[fbird18]

I replaced all 8 of my coils in three seperate tries. Never needed to flash the PCM. But if it's free, why not?

 

[Quik LS]

think of it as an update to the latest version of software. There are usually many little tweaks to the PCM code as the car is in Production for a number of years. If your car is stock, then this probably a good thing, as the tweaks usually address issues/complaints found after your car was already out in the world.

 

[De-marko]

I wonder if there were improvements made to transmission line pressure for a bit more positive shifting?

 

[ethosb]

Dealer was charging for it. They wanted to clean the TB and fuel injectors along with the PCM update for about $300.00.

 

[SlickLS]

Dealer was charging for it. They wanted to clean the TB and fuel injectors along with the PCM update for about $300.00.

Sounds like a scam to me. Don't do it. My dealership did the reflash for free because they got a TSB about it. They called me up and said that next time I brought it in that they would reflash it and next time I went in for an oil change they did the reflash for free.

 

[ethosb]

Sounds like a scam to me. Don't do it. My dealership did the reflash for free because they got a TSB about it. They called me up and said that next time I brought it in that they would reflash it and next time I went in for an oil change they did the reflash for free.

Cool. I will mention it to the service tech on the next oil change.