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Issue with 96 850R Starting Not Turning Over Topic is solved

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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FLXC90
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Year and Model: 98 V70 T5
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Re: Issue with 96 850R Starting Not Turning Over

Post by FLXC90 »

It may help to make yourself a chart or spreadsheet to record your findings while doing voltage tests of hot, cold, and cranking. Not just when you have a no-start. Volts at batt terminal, back-probing terminal of battery cable, starter cable terminal, back-probe starter cable terminal. drop from batt term to starter term . drop from terminal to back-probe of terminal. especially since the prime components have been changed. The common thread is a voltage drop or interrupt in the cabling. And since electrons are hard to watch, and it does lead to difficult troubleshooting, especially when intermittent, charting results may help.

Also, when a no-start occurs, check connections, shake harnesses and track results, you may have a wire somewhere with an internal fault that is masking itself.
Current Volvos:
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)
wackenhut
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Joined: Tue Jul 07, 2015 9:32 pm
Year and Model: 850R 1996
Location: FLORIDA

Re: Issue with 96 850R Starting Not Turning Over

Post by wackenhut »

I really appreciate it and will keep you posted.

Thank you.
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FLXC90
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Re: Issue with 96 850R Starting Not Turning Over

Post by FLXC90 »

Ironically, I was just browsing on another forum and found this, http://volvospeed.com/vs_forum/topic/21 ... -no-start/ LOL Happy belated Birthday Erik!

We all just want to see you get this solved, and I'm salty because "Sally" won't let me go out and play with mine this week!
Current Volvos:
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)
wackenhut
Posts: 185
Joined: Tue Jul 07, 2015 9:32 pm
Year and Model: 850R 1996
Location: FLORIDA

Re: Issue with 96 850R Starting Not Turning Over

Post by wackenhut »

One more question, if I get a laser temperature gauge and test the lead on the cable, would this indicate needing a new one at a certain temperature? Otherwise, just going to replace it.
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misha
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Re: Issue with 96 850R Starting Not Turning Over

Post by misha »

No....you will need a simple digital multimeter to perform a voltage drop test on both....positive and negative side.
More than 0.2v of voltage drop per side and you need a new cable.
'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
wackenhut
Posts: 185
Joined: Tue Jul 07, 2015 9:32 pm
Year and Model: 850R 1996
Location: FLORIDA

Re: Issue with 96 850R Starting Not Turning Over  Topic is solved

Post by wackenhut »

I want to thank everyone for there help including: Jaydiesel, jreed, erikv11, abscate

The issue was the positive battery cable which was first mentioned. I was very hesitant to change it out since my current independent volvo mechanic kept telling me the cable is not hard and they tested both ends. My volvo guy who retired from the dealership mentioned it has to be the cable as well.

The other day I decided to see if jumping the car got it to work and miraculously it did. I played around with starting the car while the cables were attached and when they were not and came to the conclusion it had to be either the cable or the battery. Since the battery was new, I had my mechanic just change out the cable for my own piece of mind and so far so good.

Appreciate it and Merry Christmas =)
Last edited by wackenhut on Thu Dec 24, 2020 5:57 pm, edited 1 time in total.
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Jaydiesel
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Re: Issue with 96 850R Starting Not Turning Over

Post by Jaydiesel »

Awesome!!!! and Merry Xmas to you!!!
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