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transmission downshift adjustment

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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Clemens
Posts: 1932
Joined: 3 September 2015
Year and Model: 96 855 R + 94 855 T5
Location: Austria
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transmission downshift adjustment

Post by Clemens »

Since the salt has been washed off the road and spring has arrived it was time to get the R on the road again. Now after driving the t5m all winter the R seems nice but the AT just wastes so much fun.

The tranny works perfectly fine, but I wish it would respond quicker. I really have to stomp on the pedal uncomfortanly hard to get tge tranny to shift down 2 gears while cruising at city or slow highway speeds.

This got me thinking: is that normal or is there something that is misadjusted or worn out or a leaky vacum line?

On the old TH 350 or TH 400s there was a kickdown switch, but I guess it isn'tthat easy with P80 cars?

Btw., the tranny is in Sport Mode
Summer: 1996 855 R
Winter: 1994 855 T5M
Donor: 1995 854 10V

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misha
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Joined: 7 December 2008
Year and Model: '97 850 2.5 20v
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Post by misha »

Automatic transmissions in our cars are computer controlled...not vacuum controlled.There is TCM besides ECU in ecu box.
You have a kickdown switch on your car too.
I don't know....my a AT respond pretty quick in sport mode.
Make sure that your winter/econ/sport switch works.

I find that auto transmissions in these cars are pretty fast and responsive,they adapt to your driving style.
If your battery has been disconnected during winter storage,drive it a bit.Your AT needs to go through re-learning procedure and to store your driving habbits.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

User avatar
Clemens
Posts: 1932
Joined: 3 September 2015
Year and Model: 96 855 R + 94 855 T5
Location: Austria
Has thanked: 473 times
Been thanked: 219 times

Post by Clemens »

Thanks, Misha, I will check out the throttle wire and kickdown switch tomorrow.
Summer: 1996 855 R
Winter: 1994 855 T5M
Donor: 1995 854 10V

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