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850 wont start

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

Turbobrick69
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Joined: Mon Jun 03, 2019 12:01 pm
Year and Model: 1996 volvo 850 turbo
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Turbobrick69

850 wont start

Post by Turbobrick69 » Wed Jun 05, 2019 5:57 pm

So i just did a timing belt job on my 850, new cap rotor plug wires, turbo rebuild, with a "new" angled down pipe from LKQ junkyard, mind you the 02 sensor is just hangin out, no (sensor bung) the cams are off a bit (half a tooth) as i couldnt get the belt on there with them dead on, all new parts including the timing belt are from IPD, could it be the o2 sensor not getting a reading from the exhaust? Its getting fuel and spark, so i think, i know for a fact its getting spark



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erikv11
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Year and Model: 850, S/V70, 06 S60R
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erikv11

Re: 850 wont start

Post by erikv11 » Wed Jun 05, 2019 11:20 pm

O2 sensor will not interfere with startup, it's not that.

Find out for sure about the fuel. Be even more sure the cams are only off half a tooth (which should be OK, I agree).

Is the engine spinning too easily, maybe no compression due to "lawn mower syndrome" ?


'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

Turbobrick69
Posts: 6
Joined: Mon Jun 03, 2019 12:01 pm
Year and Model: 1996 volvo 850 turbo
Location: North Carolina
Has thanked: 1 time
Been thanked: 0
United States of America
Turbobrick69

Re: 850 wont start

Post by Turbobrick69 » Thu Jun 06, 2019 8:27 am

Thanks, and i found out the prob, it wqs just out of time is all, these engines are really time sensitive is all



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