My 05 is throwing code 870 and the tranny is shifting like it did before the F37 recall. I've been running the ORM but plugged it back in and still have 870. Can't find much info on this.

P0870-OD HYDRAULIC PRESSURE TEST

What that means I have no idea.

Jason

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1973 Buick Centurion Convertable 455/4bb
1988 IROC-Z T-Top 350/TPI/it died
1997 Dodge Dakota 3.9/ dead also
2002 Suzuki Bandit 1200
2007 Jeep GC Diesel Limited

Time to change the filter?

It's telling MrMoService to check linepressure before\after shifting to overdrive - may be a leaking valve body\solenoid - wouldn't hurt to drop the pan, have a look\see, check the vb bolts for loose - if all ok, go back up with new filters, etc

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'05 CRD Limited
Pricol EGT, Boost
GDE Hot '11; EDGE Trail switched
SEGR; Provent; Magnaflow;
Suncoast T\C, Transgo Tow'n'Go switch;
Cummins LP module, Fleetguard filter, Filterminder
2.5" Daystar f, OME r; Ranchos; K80767's, Al's lifted uppers
Rubicons, 2.55 Goodyears
Four in a row really makes it go

Sounds like a plan. 48k on the clock. It's on my list.

Thanks