Had my Explorer in for service at the Ford dealer, and because of a
check engine light code, they said I needed to get my catalytic
converter replaced, as well as the rear O2 sensors (it's a much longer
story than this, but...this gets the point across).
The dealership then said I also needed to get the PCM reflashed once I
had the cats replaced. They also suggested I get the cats replaced at
a muffler shop, as it would be much cheaper than what they could do it
So...took it to a muffler shop, and the replaced both cats, but...they
were unsure of why Ford was telling me I needed to have the PCM
reflashed. They didn't think it was necessary.
So...question is- I had both cats replaced, along with rear
(downstream) O2 sensors. Do I need to have the PCM reflashed, or, is
it something that doesn't need to be done?
The Ford dealer was going to charge $100 for it (sort of chaps my ass,
because I know it probably takes all of 5 minutes to do).