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1998 s70 starter fuse keeps blowing

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

Therealxricksanchez
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Therealxricksanchez

1998 s70 starter fuse keeps blowing

Post by Therealxricksanchez » Wed Sep 18, 2019 7:52 pm

I went to start my S70 today to find out it was dead where it was parked i couldnt jump it, or at least i thought at the time

i grabbed another battery which was a good battery.

Hooked it up backwards for not even a minute at first by the time i realized it.

I pushed the car to where i could just jump it cause i was sick of fiddling with the battery went to start it and blew the starter fuse. i replaced it check all my wires and checked all my other fuses tried starting it 2 times with the jumper cables on the car then 3-4 times without.

every time i try to start it i blow the same fuse, ive tried slightly larger fuses and everything.

ive pulled the battery out completely and tried a different one i am just stuck at this point.



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abscate
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abscate

Re: 1998 s70 starter fuse keeps blowing

Post by abscate » Thu Sep 19, 2019 4:30 am

Pagination and punctuated for readability. Please follow MVS rules on punctuation, required for all posters regardless of post entry mode (phone, tablet, or computer)

Hooking up the battery backwards usually causes damage to the alternator diodes and several other electronic modules. I'll try to find a post where all the damage was documented and link.

A good Volvo specialist is needed here if you can't find the affected relays or aren't at home with a voltmeter. That will get expensive, as in 10 hours or more, so it would pay to learn the basics and do this yourself.


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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW

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abscate
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Year and Model: 99T5 ,99S70,2005V70
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abscate

Re: 1998 s70 starter fuse keeps blowing

Post by abscate » Thu Sep 19, 2019 4:39 am

Here is a good thread on the same

viewtopic.php?f=1&t=77274&hilit=reverse+polarity


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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW

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erikv11
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erikv11

Re: 1998 s70 starter fuse keeps blowing

Post by erikv11 » Thu Sep 19, 2019 7:39 am

Check (replace or jump) the J relays first, that often solves it.


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

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BEJinFbk
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Re: 1998 s70 starter fuse keeps blowing

Post by BEJinFbk » Thu Sep 19, 2019 8:11 am

Which fuse, exactly?


'98 V70 R - Well Equipped for Life Up North... ;)

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