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1997 850 R Transmission wont downshift to 2,1 when in D

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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gswede
Posts: 141
Joined: 28 February 2011
Year and Model: 850 R 1997
Location: Norway

1997 850 R Transmission wont downshift to 2,1 when in D

Post by gswede »

-Auto transmission with 80k miles.
-No codes for neither transmission or engine ecu
-No flashing arrow
-Drain and fill X 3 every 20k miles
-Fluid level ok
-Transmission reset performed by dealer

-Problem
When in D + eco mode car always takes off in 2 or 3 gear, no kickdown, does not downshift to 1st gear even at full stop. It kind of feels like the car/transmission is in limp mode.

When in D + sport mode car takes off from 1st or 2nd (i think), kickdown works but only drops one cog.

Wintermode works as it should, arrow up and start from 3rd.

Say I am coasting to a stop in D+Eco and it doesnt downshift, switch to sport at that moment, it downshifts immediately.

In L from start it never upshifts from 1st to 2nd when coming to speed. If lever being moved to L at speed it kicks in 2nd and downshifts to 1st when speed i low enough, but it wont upshift to 2nd again.

Anyone care to take a guess at what is going on?

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