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Issue speedometer

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

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JRL
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Joined: 22 November 2005
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Issue speedometer

Post by JRL »

I brought my 940 home to clean it for delievery and now the speedometer is reading/moving when the car is standing stillSeems to work OK when moving but this is weird.
Fluctuates from 0 to 45 mph while STANDING STILL.
Has this ever happened to anyone here and if so, what's the fix?
92 940 turbo
Thanks
Mod note. Jim passed away in early 2022, his contributions to this forum are immortal, and he is missed. RIP

2000 V70R Black, 144,000 miles Wife's R.
2007 V70 2.5T White/Oak 111,000 MILES. Polestar tune, IPD bars, rear spoiler, dark grey Thors, DWS 06, HU850, sub.

jimmy57
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Post by jimmy57 »

Tightening the screws on back of cluster that make the connections between the PC film and the speedo usually does it.

JRL
Posts: 9350
Joined: 22 November 2005
Year and Model: Several
Location: 19333
Been thanked: 16 times

Post by JRL »

Not what I was told
I was told to check the reaf diff sensor first and clean it.
If that doesn't do it, i have a complicated page on how to repair the cluster
No one mentioned that
Mod note. Jim passed away in early 2022, his contributions to this forum are immortal, and he is missed. RIP

2000 V70R Black, 144,000 miles Wife's R.
2007 V70 2.5T White/Oak 111,000 MILES. Polestar tune, IPD bars, rear spoiler, dark grey Thors, DWS 06, HU850, sub.

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