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Speedo going dead fish on me

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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ANIGAV Inc.
Posts: 93
Joined: 7 September 2007
Year and Model: 96 850 t5
Location: Norfolk VA

Speedo going dead fish on me

Post by ANIGAV Inc. »

This thing is driving me crazy. I'll be driving along speedo showing 55mph all is good. Then, Boom it goes dead fish on me. :evil:

It wakes back up when I restart the car and sometimes intermittently comes back on its own. I've been tempted to get a boneyard cluster and swap it in but I think may be due to the ubiquitous abs problem. (the abs light is not on though so i don't think its broken)

What say you MVS: get new cluster or look into getting abs unit repaired?
1996 - 850 turbo

Matty Moo
Posts: 1810
Joined: 12 October 2008
Year and Model: 850, 1996
Location: Ann Arbor, MI
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Post by Matty Moo »

Is the ABS light there when you start the car? It is supposed to come on for a couple of seconds to let you know that it works.

With a dead speedo, there's more than enough going on for the unit to trigger the light.
Image
http://www.midwest-abs.com
Simplycleanpowerwash.com

1996 850 Platinum Wagon. ARD Green Tune, OBX.-Gone
1998 s70 ARD tune, EST exhaust, SE/R interior.
1999 s70 Plain Jane.
2000 s70 GLT
2014 Ram
2012 Jeep Wrangler Unlimited

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