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V70R spark plugs

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

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V70r carbon
Posts: 26
Joined: Fri Jan 20, 2017 8:02 pm
Year and Model: 2005 v70r
Location: Canada

V70R spark plugs

Post by V70r carbon »

Hi guys. I bought my 2005 V70R 6 speed this December and found that it pulled strong in all the gears except that it let off these little back fires in the first 3 gears if it wasn't warmed up enough. I read that it was a common thing with the B 5254 T4 engines but then I got 2 engine codes for a misfire on start up on #4 and #5. I picked up a couple of coils and 5 stock spark plugs that to my surprise, the engine had the SHORT NGK's !!! The car runs exceptionly smooth and has got noticebly more power now but I was wonderimg if having the short plugs did any kind of damage. Id really appreciate any feedback on this. Thanks.
JDS60R
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Year and Model: 2007 S60R 2007 S60
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Re: V70R spark plugs

Post by JDS60R »

Should be fine. Check seat and threads for damage and put the right plugs in .
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V70r carbon
Posts: 26
Joined: Fri Jan 20, 2017 8:02 pm
Year and Model: 2005 v70r
Location: Canada

Re: V70R spark plugs

Post by V70r carbon »

Thanks for the info JD, good to hear that. I can't believe that the twit who sold me the car put the short plugs in. I'm impressed that plugs 1/4 " short still worked. I would have liked to be there if he had put the "R" plugs into a T5 engine when he started it. what a sound!
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