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P80 -1998 developing coil failure 1275174

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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abscate
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Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
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P80 -1998 developing coil failure 1275174

Post by abscate »

I’ve been reworking a 1998 NA and ready for its return home to VT.

Last few days, I noticed a slight stumble at idle every 5 minutes or so, maybe a 100-200 rpm drop

Today, a badmisfire above 2000 rpm. Luckily, it does it in the driveway without a load. Idle is smooth, but once revs go up to 2000 or more it’s tough.

I checked distributor cap for oil and gunk and th n swapped in a parts coil , and Earl the 1998 purred and drove smoothly thereafter.

Old coil had about 230k on it
Primary 10 ohms
Secondary 10k ohms
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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scot850
Posts: 14864
Joined: 5 April 2010
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
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Post by scot850 »

Great catch! Must be intuitive to an old 'salt' like you by now. Does this mean Earl is heading back home? What a great person you are to get the car back up and running so well. Big 'PAT' on the back from up here!

You know they may not be particularly powerful, but the NA's are beginning to grow on me for there generally robust and much easier maintenance. They also seem to attract a more caring owner through their lives.

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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abscate
MVS Moderator
Posts: 35267
Joined: 17 February 2013
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
Has thanked: 1497 times
Been thanked: 3809 times

Post by abscate »

After the thrashing it gave me in distributor timing, this one felt good.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread

markone
Posts: 64
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Year and Model: 2007 V70
Location: Vermont
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Post by markone »

"Does this mean Earl is heading back home? What a great person you are to get the car back up and running so well."

I would simply like to echo Neil's sentiment (above). Abscate has been supremely generous with his time and knowledge on this one.
2006 V70 NA/manual trans, 165k
2007 V70, NA/manual trans, 143k miles
2023 BMW X1, 29k miles
2018 Jeep Grand Cherokee LTD, 91k miles
2007 Malibu Response LXi, Ebony/white, 340 hp, 395 hours
1997 850 Sedan NA, manual trans, sold at 330k miles
1998 V70, NA/manual trans, sold at 365k miles

User avatar
abscate
MVS Moderator
Posts: 35267
Joined: 17 February 2013
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
Has thanked: 1497 times
Been thanked: 3809 times

Post by abscate »

Aw, thanks Guys. Ive had so much paid forward to me in life, Ill have to live a long time to repay the karmic bucket.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread

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