Just started 3-5 shift flares

Ford460power · Feb 20, 2016

So got in truck after work and on way home have developed a nasty shift flare. Trans has been fine zero issues. I've tried changed sct tunes and going back to stock and still happens. So needing new solenoid or tranny about to go? Fluid is fresh and nothing burnt.

BS Hauler · Feb 24, 2016

Following this as mine sometimes has a very slight flare also. I was wondering if the solenoid would solve this.

slc6oh · Feb 24, 2016

From my understanding: once its started to, the solenoid wont fix it... I could be wrong tho

Ford460power · Feb 25, 2016

Mine was acting up again, started throwing some codes and had no lock up and flashing tow haul light, checked a bunch of stuff unhooked battery's and checked plugs and connectors everything was good, started truck up and no codes no flashing tow haul and its been fine for a few days, still have a shift flare though. Then yesterday started throwing a code for no kam voltage and finally tracked down alternator wasn't putting out but barely 12.5 13 v even at wot, so changed alternator and again everything looks ok.

Mark Kovalsky · Feb 25, 2016

The first thing to try is clearing the memory. Disconnect the PCM or the negative battery cables. Once in a while the learning software learns itself into a hole that it can't find it's way out of.

BS Hauler · Feb 25, 2016

Thank you Mark. I will try this.

Ford460power · Feb 25, 2016

Well new alternator cleared all codes been driving good got about 100 miles and no shift flare?!?

Zmann · Feb 25, 2016

Mark Kovalsky said:
The first thing to try is clearing the memory. Disconnect the PCM or the negative battery cables. Once in a while the learning software learns itself into a hole that it can't find it's way out of.

that's interesting