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Flickering interior lights

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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eroosa
Posts: 53
Joined: 19 November 2006
Year and Model: S70 2000
Location: Vestal. NY

Flickering interior lights

Post by eroosa »

Twice now (that I have noticed) several of my dash lights have come on and flickered for a few seconds. It was raining the one time and the other time I was on a bumpy road.
Any suggestions?

Thanks,
Ed

Ozark Lee
MVS Moderator
Posts: 14798
Joined: 7 September 2006
Year and Model: Many Volvos
Location: USA Midwest
Has thanked: 4 times
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Post by Ozark Lee »

Chances are it is the dimmer rheostat going bad. Try sliding it back and forth a few times to try to clean it. If it is left in the same place all the time it grows a dead spot.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

eroosa
Posts: 53
Joined: 19 November 2006
Year and Model: S70 2000
Location: Vestal. NY

Post by eroosa »

Thanks Lee I will try that. The lights that flicker are the dash warning lights though like the check engine and a few others all at the same time.

Ed

Ozark Lee
MVS Moderator
Posts: 14798
Joined: 7 September 2006
Year and Model: Many Volvos
Location: USA Midwest
Has thanked: 4 times
Been thanked: 75 times

Post by Ozark Lee »

Ahh, chances are that it is your alternator then. Anytime the alternator warning comes on it also illuminates the bulb failure indicator, the washer fluid level indicator, the parking brake indicator, the coolant level indicator, and the brake warning indicator.

I have no idea why they made the instrument cluster that way.

I would start by inspecting and cleaning the connections on the alternator since it is just random.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

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