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The spark plugs I took off of my car ...

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

marginal
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Year and Model: 850 GLT 1997
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The spark plugs I took off of my car ...

Post by marginal » Mon Dec 28, 2009 4:09 pm

are all like this one:
Image
Isn't the fuel mix too lean?

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phils94850
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Re: The spark plugs I took off of my car ...

Post by phils94850 » Mon Dec 28, 2009 4:27 pm

marginal,

check out this link to reading plugs, pretty good write-up. hope it helps

http://www.ingfatrygg.se/Spark_plug_diagnostics.html
1996 Platinum Edition

Volgrrr
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Re: The spark plugs I took off of my car ...

Post by Volgrrr » Mon Dec 28, 2009 4:34 pm

Excellent response.
There are only two types of car owners - those who own Volvos and those who wish they did.

marginal
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marginal

Re: The spark plugs I took off of my car ...

Post by marginal » Mon Dec 28, 2009 6:57 pm

Thank you phils94850 :)

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Re: The spark plugs I took off of my car ...

Post by FCPEURO » Tue Dec 29, 2009 5:45 am

Looks like the car is either running lean or to hot in that cylinder. Do all the plugs look like this? Are you running more boost on the engine?
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marginal
Posts: 312
Joined: Wed Sep 23, 2009 9:24 pm
Year and Model: 850 GLT 1997
Location: Montreal, Canada
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Re: The spark plugs I took off of my car ...

Post by marginal » Tue Dec 29, 2009 8:53 am

They're all the same.
I step on the pedal from time to time, but not often ...
Thanks.

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