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HELP! 94 850 shifting wacky(30-40mph), + electronic issue?

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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woodstock
Posts: 4
Joined: 24 March 2004
Year and Model:
Location: Niskayuna, NY

HELP! 94 850 shifting wacky(30-40mph), + electronic issue?

Post by woodstock »

If anyone has an idea as to what is happening to my 1994 automatic 850 non-turbo 212,200kmi, I would appreciate your input. A coulpe of days ago I was going about 30-40 mph when the trans seemed to being shifting in and out of gear, the speedometer was also fluctuating while this was happening. Then today at about the same speed the same thing happened, only this time the speedo dropped to zero and stayed there, and the up arrow light started flashing. After stopping and resarting the car the speedo worked but the up arrow light continued flashing, and the clunky trans problem was still there. After a few restarts and with the light still flashing, I switched it to sport mode, and the a couple starts later all seemed well again? Any clue whats going on? I will try to get to a shop and see if there are error codes, but I would like to have an idea what I am facing. Thanks for your advice!

woodstock
Posts: 4
Joined: 24 March 2004
Year and Model:
Location: Niskayuna, NY

Post by woodstock »

After doing some digging around the boards, I am suspecting the nuetral saftey switch. Does anyone know if that switch could cause the speedo to drop to zero and stay there?

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