Sorted my MV6 gearbox niggles, for once and for all

For anyone who's interested in the history..
First sign of trouble was very regular (pretty much constant) limp mode, with code P0748 (from memory) - auto gearbox pressure control solenoid malfunction.
When this happened, I ordered a new solenoid from JPAT, and fitted it. This cured the limp mode issue, BUT a new problem soon reared it's head - Fault codes relating to ratio faults, and, limp mode being activated when slowing down only with sport mode on. I also then had a problem with the gearchange from 3rd to 4th being somewhat sudden, and a little violent, unless you increased speed very gradually up to 50mph.
Today, my mate Markie and I dropped both of the autobox sumps on my MV6, and fully cleaned them out, flushed the autobox oil cooler, and re-filled with some nice new red ATF. At the same time, also fitted a known good GM pressure control solenoid as given to me by Mr Sassanach.
The end result is, no more fault codes. The change into 4th is now un-noticable under all conditions, and I can't provoke limp mode slowing down in S mode anymore.
SO - if ever your solenoid fails - fit a known good GM part, rather than a pattern jobbie.
The car feels much, much nicer to drive with a smooth autobox, so I'm a happy bunny
