Is a reflash of the ECM necessary

ryanw821 wrote:

Adam H wrote:

ryanw821 wrote:

Majja13 wrote:

Bob Shaw wrote:
I've got a 2002 GMC and when I got a "Check Engine" light, my mechanic recommended I go get my ECM re-flashed before we start any repairs. It appears that GM issued some updates that when applied negated the need for the "check Engine". I think it had to do with the EGR valve not opening as quickly as it did when the vehicle was new. So, you may never know what might come out of a re-flash.

Something like this should that not come form GMC and be a free bee at the dealer not me paying to have it done?

If his assumption is correct and its to fix factory issues, yeah, any re-flashes should be recall work done by dealer free. I've gone through a few of those on my Jeep, they have done it to fix some reliability issues.

13 years later? I don't understand why the manufacturer should provide this for free on a 13 year old vehicle with xxx,xxx miles on it?

Jeep's still doing it 10 years later for mine, sure there comes a point where they quit issuing TSBs for issues like that on a vehicle (non-safety issues), but shouldn't matter if its 15 years later, if there was a TSB that wasn't completed, you better believe I would be making them do it. It's not like it takes a dealer more than 20min to do a reflash anyways, and they get reimbursed for doing it in most cases by the mfg (GM, Chrysler, Ford, etc).