Just got my Platinum back from the dealers. It took a couple of days but now it seems to shift better. They claim to have installed an update. So now I'm supposed to drive it normally, no hotrod stuff, for 200 miles. I have great hopes since the continued crappy shifting makes a really nice vehicle a clunker. I don't have any details, just that they flashed the tranny and it will take a while to learn my driving habits.
Here's the latest on the Platinum
A TRANS-CST STS TRANS HESITATES OR STUMBLES WHEN DRIVING AND HARSH
SHIFT. SEE TSB 21-2046
1 LIMZ*7A100*F CONTROL ASY TRANSMISSION (N/C)
12 XT*12*QULV OIL. AUTOMATIC TRANSMISSION (N/C)
7001D1 PID" RECORDER/MONITOR TEST WITH ROAD TEST LEA02 MO) CUR
L:
6854 TAMBURIN-ANTHONY D LIC#: 000510737
7001D2 LINE PRESSURE AND STALL TEST-' L
7001D14 AUTOMATIC TRANSMISSION MAIN CONTROL VALVE
BODY REPLACE (7A100/7G383/7G391) L
PERFORM DIAG, NO. DTCS, PERFORM ROAD TEST MONITOR,
SHIFTS A BIT HARD AT TIMES
PERFORM LINE PRESS TEST, ACTUAL PRESSURE GOES 20-30
HIGHER THEN THE COMMANDED LPC WHICH POINTS TO
STICKING PRESSURE CONTROL IN VALVE BODY
THEN SOMETIMES IT FALLS BACK TO WITHIN RANGE, *
REMOVE PAN, REPL VALVE BODY ASSM,
REFILL TRANS DOWNLOAD NEW STRATEGY,
THEN ROAD TEST TO RELEARN SHIFTING PATTERN, 10-6891450
TRANS SHIFT FEELS SMOOTHER NOW,
WILL NEED SOME RELEARN DRIVING TO COMPLETE
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Long and the short.....they replaced a control valve....This is the third or fourth time I've had it in the shop to complain about the tranny. I still don't know whether it's fixed because the vehicle is still in the shop....A headlight started sending error codes while it was still in the shop and they've had to order parts. Same old story. Maybe I'll get it back next week...They've already had it for two weeks.
However, they've been gracious about a loaner.