Tuneup/spark plug question Topic is solved

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, 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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subzerocarfanatic
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Re: Tuneup/spark plug question

Post by subzerocarfanatic »

misha wrote: Fri Jul 03, 2020 12:34 pm
subzerocarfanatic wrote: Fri Jul 03, 2020 11:48 am ...Why do the OEM Volvo ones not come pre set?
Who said that?
They do.
Proper gap setting is for cheap copper Bosch or NGK.
What about BOSCH irridium plugs,are they better than OEM Volvo plugs?

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Post by misha »

Nothing is better than Volvo plugs.
There are some members who have great experience with NGK irridium plugs,but i never used them.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
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Post by Roger_850T »

subzerocarfanatic wrote: Fri Jul 03, 2020 1:50 pm How many miles are OEM BOSCH coils good for?
My experience has been that you start to get random misfires somewhere ~150k miles or so. At that point, you can troubleshoot to figure out which one is giving you random misfires, and replace it and be good. Of course, the others all have the same heat cycles and miles on them, and will be similarly failing, so my preference is to just replace all of them together. Then I don't have to repeat the troubleshoot-and-replace procedure again and again, and I can have more expectation of reliability.

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'05 XC90 V8 170k
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Post by abscate »

I did all new coils somewhere between 140-160k miles and had my first failure at 250k miles

If you want to drive trouble free, PM model I would replace at 100k miles and expect multiple failures by 150k miles
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Post by subzerocarfanatic »

abscate wrote: Sat Jul 04, 2020 12:05 pm I did all new coils somewhere between 140-160k miles and had my first failure at 250k miles

If you want to drive trouble free, PM model I would replace at 100k miles and expect multiple failures by 150k miles
Well the C70 has 144K on it and I assume the OEM coils that are in it are original,the previous owners did not seem to maintain anything properly nor with OEM parts.

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Post by subzerocarfanatic »

IMG_20200704_115628.jpg
here is a better picture.

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Post by subzerocarfanatic »

Are these not the exact same thing ashttps://www.fcpeuro.com/products/volvo-spark-plug-bosch-fr7dpp the OEM Volvo plugs minus the Volvo badge,the part numbers look the same.

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Post by erikv11 »

subzerocarfanatic wrote: Sat Jul 04, 2020 12:33 pm Are these not the exact same thing ashttps://www.fcpeuro.com/products/volvo-spark-plug-bosch-fr7dpp the OEM Volvo plugs minus the Volvo badge,the part numbers look the same.
yes, I posted that back on the first page of this thread.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6 :shock: 135k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k

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Post by abscate »

subzerocarfanatic wrote: Sat Jul 04, 2020 12:12 pm So....is this acceptable?https://www.ebay.com/itm/Volvo-Direct-I ... 0167.m2940
Wheres does this wire fit?https://www.ebay.com/itm/OEM-Genuine-Vo ... 0167.m2940
First one..it looks like someone has found the oem suppliers For Volvo connectors and is selling $8 connectors for $40.....well done

Second one will not fit on your 2000, coil on plug, Volvo
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