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What is it with white block engines and cylinder #4?

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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454cid
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Year and Model: 1996 850
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Re: What is it with white block engines and cylinder #4?

Post by 454cid »

abscate wrote: ↑09 Oct 2025, 02:57 I got to use “ eschew” in a sentence!
gesundheit! :D
1996 850
1999 S70 GLT (sold after deer hit)

2010 Ford Focus SE
2006 Cadillac CTS
1996 Mercedes C220
1999 Chevrolet K3500
1969 Buick LeSabre Custom 400
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scot850  
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Post by scot850 »

The life span for a change of the plugs on my Toyota 4Runner is 190kkm. The car is now 22 years old and just passed 190kkm last year! I had Toyota swap the plugs for me 7 years ago as I was not going to have a go on them!

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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erikv11
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Post by erikv11 »

Maybe previous owner(s) left #4 in there because they didn't want to remove the charge pipe? So that one's much older (hasn't been moved) than the others.

Eschew!!
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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BlackBart
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Post by BlackBart »

This sounds like a very possible scenario!
ex-1984 245T wagon
1994 850T5 wagon
2004 XC70 wagon BlackBetty
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BlackBart
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Post by BlackBart »

abscate wrote: ↑08 Oct 2025, 01:23 Esteemed colleague. Symbol for 4 is symbol of death

In China, sometimes there is no fourth floor of a building ..
Back in Seattle we once worked with Taiwanese investors to develop a commercial building downtown. The whole deal suddenly screeched to a halt because the actual address of the lots was very bad luck. A scramble of lawyers jumped in with City officials and the PO to change the numbers of the address.
ex-1984 245T wagon
1994 850T5 wagon
2004 XC70 wagon BlackBetty
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