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98 XC:all electronics shut off while driving

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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CIK7
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Year and Model: 1998 Volvo V70 XC
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98 XC:all electronics shut off while driving

Post by CIK7 » Mon Jun 08, 2020 5:46 pm

This past Saturday (6/6), I left my car running for 4 hours with AC on for my dog while I went through the junk yard looting a 98 V70 glt and 99 s70 t5. I finally headed home with AC still on. About 25 miles down the road, I showed down to take the clover leaf to the next road. when I slowed down mostly, all electronics shut off and immediately turned back on. About 2 miles down the road it happened again but for about 1 second. then today (6/8) I was headed out to parents house and the electronics shut off for about 5 secs. I was unable to use gas, lights were off. I have a power steering and oil leak. I'm questioning if I should have spent that money on another car instead of on more parts for this car and other stuff. please help me ASAP.
1998 V70 XC black ($1K trade, Mi:143,995/151K Mr Cloud, totalled 5/2/20 @149K, engine toast @ 151,1XX)
1998 V70 XC white ($50 cash, junk, donor for my black XC, crushed)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 2.3 V70R engine, P2 M66 swap, logo/badge delete excl grille

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erikv11
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Re: 98 XC:all electronics shut off while driving

Post by erikv11 » Mon Jun 08, 2020 7:23 pm

Sounds much like the electrical part of the ignition switch is going bad, which is very common. Basically all of the factory ones have failed or will soon. Test by jiggling the key or by easing the key back and forth, while idling. Has it ever been replaced? Did you grab one from the junker?
These users thanked the author erikv11 for the post (total 2):
CIK7abscate
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 286k
'06 S60 R, 167k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

scot850
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scot850

Re: 98 XC:all electronics shut off while driving

Post by scot850 » Mon Jun 08, 2020 7:30 pm

Also check the B+ cable up in the kidney shaped main fuse box. The are bad for melting and hide it well where they come into the bottom side of the box. Not a 100% surefire clue is the nut and cable end will oxidise.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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CIK7
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Re: 98 XC:all electronics shut off while driving

Post by CIK7 » Mon Jun 08, 2020 7:40 pm

erikv11 wrote:
Mon Jun 08, 2020 7:23 pm
Sounds much like the electrical part of the ignition switch is going bad, which is very common. Basically all of the factory ones have failed or will soon. Test by jiggling the key or by easing the key back and forth, while idling. Has it ever been replaced? Did you grab one from the junker?
does this mean the ignition needs to be replaced? which part needs to be replaced?
1998 V70 XC black ($1K trade, Mi:143,995/151K Mr Cloud, totalled 5/2/20 @149K, engine toast @ 151,1XX)
1998 V70 XC white ($50 cash, junk, donor for my black XC, crushed)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 2.3 V70R engine, P2 M66 swap, logo/badge delete excl grille

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erikv11
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Re: 98 XC:all electronics shut off while driving

Post by erikv11 » Mon Jun 08, 2020 10:56 pm

Just the electrical portion not the whole thing, it's an easy job. This is the part for your 98 V70: https://www.fcpeuro.com/products/volvo- ... 90-9447804
Only use the Volvo branded part for this. Pulling one from the junkyard is reasonable to assume it is working now, but realize it could go bad again. If you're looking for one at the junkyard, note carefully which cars have the asme one. They are listed on the "fitment" tab of that link at FCP.

How to replace it: viewtopic.php?f=1&t=55868

Remember we are not certain it's the electrical portion of the ignition switch, but it is a good chance. Worth doing some troubleshooting.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 286k
'06 S60 R, 167k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

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CIK7
Posts: 368
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Year and Model: 1998 Volvo V70 XC
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Re: 98 XC:all electronics shut off while driving

Post by CIK7 » Tue Jun 09, 2020 11:38 am

erikv11 wrote:
Mon Jun 08, 2020 10:56 pm
Just the electrical portion not the whole thing, it's an easy job. This is the part for your 98 V70: https://www.fcpeuro.com/products/volvo- ... 90-9447804
Only use the Volvo branded part for this. Pulling one from the junkyard is reasonable to assume it is working now, but realize it could go bad again. If you're looking for one at the junkyard, note carefully which cars have the asme one. They are listed on the "fitment" tab of that link at FCP.

How to replace it: viewtopic.php?f=1&t=55868

Remember we are not certain it's the electrical portion of the ignition switch, but it is a good chance. Worth doing some troubleshooting.
thank you. I have an identical junk car and will put that ignition piece on there.
1998 V70 XC black ($1K trade, Mi:143,995/151K Mr Cloud, totalled 5/2/20 @149K, engine toast @ 151,1XX)
1998 V70 XC white ($50 cash, junk, donor for my black XC, crushed)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 2.3 V70R engine, P2 M66 swap, logo/badge delete excl grille

User avatar
CIK7
Posts: 368
Joined: Mon Jan 14, 2019 8:15 am
Year and Model: 1998 Volvo V70 XC
Location: Oklahoma
Has thanked: 73 times
Been thanked: 3 times
United States of America
CIK7

Re: 98 XC:all electronics shut off while driving

Post by CIK7 » Tue Jun 09, 2020 11:39 am

scot850 wrote:
Mon Jun 08, 2020 7:30 pm
Also check the B+ cable up in the kidney shaped main fuse box. The are bad for melting and hide it well where they come into the bottom side of the box. Not a 100% surefire clue is the nut and cable end will oxidise.

Neil.
thank you I will take a look.
1998 V70 XC black ($1K trade, Mi:143,995/151K Mr Cloud, totalled 5/2/20 @149K, engine toast @ 151,1XX)
1998 V70 XC white ($50 cash, junk, donor for my black XC, crushed)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 2.3 V70R engine, P2 M66 swap, logo/badge delete excl grille

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misha
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Re: 98 XC:all electronics shut off while driving

Post by misha » Tue Jun 09, 2020 1:03 pm

In what shape is a battery?
You will need to perform a voltage drop test and aternator output when everything is warmed up(after about 30min.of driving),without turning the engine off.
'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

User avatar
CIK7
Posts: 368
Joined: Mon Jan 14, 2019 8:15 am
Year and Model: 1998 Volvo V70 XC
Location: Oklahoma
Has thanked: 73 times
Been thanked: 3 times
United States of America
CIK7

Re: 98 XC:all electronics shut off while driving

Post by CIK7 » Tue Jun 09, 2020 8:04 pm

misha wrote:
Tue Jun 09, 2020 1:03 pm
In what shape is a battery?
You will need to perform a voltage drop test and aternator output when everything is warmed up(after about 30min.of driving),without turning the engine off.
the battery is brand new. I hope it's not that.
1998 V70 XC black ($1K trade, Mi:143,995/151K Mr Cloud, totalled 5/2/20 @149K, engine toast @ 151,1XX)
1998 V70 XC white ($50 cash, junk, donor for my black XC, crushed)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 2.3 V70R engine, P2 M66 swap, logo/badge delete excl grille

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