muddyford911

iTrader: (1)

Just picked up an 08 king ranch a couple months ago with 85K and have noticed that the trucks seems to rev slightly, followed by a harsh shift under light load and low speed. i know of a TSB for these trucks that says a simple PCM reflash fixes the problem.

i was just wondering if any of yall have had the same problem, and if so did the dealer charge you anything to reflash?

Disposablehero

85k and the problem hasn't been fixed already? Contact a Ford Dealer Service dept. and have them pull an oasis and see if it has already if it infact needed one.

But what about a transmission service? You know when the last time the pan was dropped, filter changed and fluid flushed/ exchanged?

Tccards500

Ive got the exact same miles on my 08 xlt, and it does the same thing. Noticed when driving about 25-30 and gas is applied; RPM's rev up a bit (maybe 500) without any acceleration, then it slams into gear. Under normal acceleration the tranny is super smooth Haven't done any fluid changes

KevFord1993

Also noticed this- it revs them drops and goes like what the hell isthis?

techrep

iTrader: (1)

85K miles and you have not serviced the tranny yet ??

Tccards500

Only had it a month, been crazy busy....and many people advise against it as long as its running smooth and the fluid doesnt stink... Whats your opinion hotshot?

muddyford911

iTrader: (1)

My truck has been well taken care of. I have maintenance records for the last 67k, so I'm confident its not a result of abuse or lack of maintenance. Ill try to take into the dealer on Saturday.

Tradesman

Correct me if I am wrong but isn't the new Ford Mercon a semi-synthetic? Anyone have that link to the online owner's manual?