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850 dash warning lights Topic is solved
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- Posts: 323
- Joined: Sat Jul 27, 2013 8:48 pm
- Year and Model: 240DL;850;S70
- Location: Lehigh Valley, PA
- Has thanked: 1 time
- Been thanked: 26 times
850 dash warning lights
Ok board members, I got one for you... Hopped in my 850 this morning and started off to work. Less than mile and all the warning lights and headlights start to flicker. Turn around and hop in another car. This afternoon the car fires up, the air pump sounded muffled compared to the usual wind up, all warning lights are on, occasional flicker but all on. I jiggled some cables under hood, fiddled with the key while in ignition, turned on accessories, windows, headlights with nothing different. Car idles fine and starts each time. Did not check the diagnostics boxes under hood yet. Where the heck do I start diagnosing?
Thanks,
Carl
Thanks,
Carl
- misha
- Posts: 4577
- Joined: Sun Dec 07, 2008 4:09 pm
- Year and Model: '97 850 2.5 20v
- Location: Serbia
- Has thanked: 67 times
- Been thanked: 176 times
Re: 850 dash warning lights
Ignition switch or alternator.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
- Cookeh
- Posts: 428
- Joined: Mon Jan 14, 2019 11:00 am
- Year and Model: 1996 Volvo 850 T5
- Location: Ceredigion, Cymru
- Has thanked: 69 times
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Re: 850 dash warning lights
I'm with misha on this one, you can test the ignition barrel/switch by jiggling the keys slightly with engine running and seeing if that temporarily fixes the problem.
- misha
- Posts: 4577
- Joined: Sun Dec 07, 2008 4:09 pm
- Year and Model: '97 850 2.5 20v
- Location: Serbia
- Has thanked: 67 times
- Been thanked: 176 times
Re: 850 dash warning lights
Did you checked the alternator output voltage?
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
-
- Posts: 323
- Joined: Sat Jul 27, 2013 8:48 pm
- Year and Model: 240DL;850;S70
- Location: Lehigh Valley, PA
- Has thanked: 1 time
- Been thanked: 26 times
Re: 850 dash warning lights
Two days of doing nothing to car, the battery was 12.2 with engine off. Started car and battery was 11.5 while engine running. I am leaning towards alternator issue.
- misha
- Posts: 4577
- Joined: Sun Dec 07, 2008 4:09 pm
- Year and Model: '97 850 2.5 20v
- Location: Serbia
- Has thanked: 67 times
- Been thanked: 176 times
Re: 850 dash warning lights
Check voltage output directly on alternator....on b+ and alternator housing.
We need this to determine if alternator is bad or battery cables are bad.
We need this to determine if alternator is bad or battery cables are bad.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
-
- Posts: 323
- Joined: Sat Jul 27, 2013 8:48 pm
- Year and Model: 240DL;850;S70
- Location: Lehigh Valley, PA
- Has thanked: 1 time
- Been thanked: 26 times
Re: 850 dash warning lights
Today the battery was 12.2 before starting. The B+ and alternator housing was 11.45 as was the battery 11.45 while running.
- misha
- Posts: 4577
- Joined: Sun Dec 07, 2008 4:09 pm
- Year and Model: '97 850 2.5 20v
- Location: Serbia
- Has thanked: 67 times
- Been thanked: 176 times
Re: 850 dash warning lights
Yep....alternator is shot.
Could be voltage regulator or the alternator itself.
Could be voltage regulator or the alternator itself.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS
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