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White Smoke coming from exhaust and dipstick 1996 850R Topic is solved

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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crider
Posts: 1
Joined: 17 January 2025
Year and Model: 1996 volvo 850R
Location: Austin TX

White Smoke coming from exhaust and dipstick 1996 850R

Post by crider »

My 850R randomly had a rough startup followed with a lot of white smoke from the exhaust. I thought it was a head gasket so i've done all the things to dignose it. I took the spark plugs out they looked fine, no residue or sign of coolant on oil cap or the dipstick. I Drained the oil and it looks fine not like chocalate milk... so I did a compression test(the one with the fluid) and it appered to have passed. because there was also smoke coming from the dipstick I also took the pcv off, It was not clogged and its also only a couple months old. Not to sure what to do no the car also only has 96k miles on it.. Any Ideas??

scot850
Posts: 14880
Joined: 5 April 2010
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
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Post by scot850 »

It could be a brake master cylinder/booster leak allowing brake fluid to leak into the intake via the vacuum line.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

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