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Lights cut out on deceleration and randomly 1997 S70 T5

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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Fosgate
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Re: Lights cut out on deceleration and randomly 1997 S70 T5

Post by Fosgate »

So after thinking for a while what can cause this and checking few things I came to conclusion that perhaps its the belt that is driving the alternator is the cause this issue. I suspect the belt was too old and was slipping under high load and low RPM... the humidity and high temperatures would make this worse as well ...
So yesterday after making a makeshift tool to loosen the driving belt I have replaced it with a brand new Continental unit ... drove the car for around 10kms and so far it seems to be all good... the lights do not dim or cut out and there is no flicker in the clusters backlight....
Hopefully this would resolve the issue I'll update you after few more days when I can take the car on a proper drive.
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wizechatmgr
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Year and Model: 1999 V70 XC AWD 2.4T
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Post by wizechatmgr »

Sounds good. Always great when it is the cheap/easy fixes...
Wisdom requires knowledge as a prerequisite, but knowledge can be developed due to a lack of wisdom.
In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD 2.4 T -- ~231k miles
1998 V70 2.4 NA -- ~184k miles
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