Hello,
A cylinder was misfiring. Replaced one failing injector plus coils & plugs. Once warmed up car runs, idles great.
However, cold-starts are wobbly - for the first time ever. Like mini-misfires - just a few seconds then the idle steadies.
Thought maybe some of the remaining injectors might have a touch of what killed the other one. And maybe a fuel-injector additive might be worth a try. Concerned about risks. Welcome any thoughts.
Fuel-injector additive - Risks? '07 V70 140K
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matthew1
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I've used it since 2008 on my Volvos and since 2017 on my VW... no problems. (Seafoam)
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1998 V70, no dash lights on
1997 850 T5 [gone] w/ MSD ignition coil, Hallman manual boost controller, injectors, R bumper, OMP strut brace
2004 V70 R [gone]
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Also -> Amazon link. Click that when you go to buy something on Amazon and MVS gets a cut!
1998 V70, no dash lights on
1997 850 T5 [gone] w/ MSD ignition coil, Hallman manual boost controller, injectors, R bumper, OMP strut brace
2004 V70 R [gone]
How to Thank someone for their post
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cn90
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- Check/replace fuel filter if appropriate.
- New Bosch injector is only $40...you can always install the other 4 injectors. On the long run, you save money bc of gasoline cost.
- New Bosch injector is only $40...you can always install the other 4 injectors. On the long run, you save money bc of gasoline cost.
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+
2005 XC90 2.5T 110K+
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Vova585
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Bosch is a respectful brand. For a many instances bosch will be an OEM part. Multiple videos with tests show that Bosch after market injectors are and ok replacement, but not as good as OEM part in original box. $40 per one is a great price and will be decently cheap replacement. If you are at 140k and never replaced your ignition coils- might as well replace them now. In my case, they usually lasted 80-100k and dead.
Ideally, one would remove injectors, put them on test stand and check flow ammount, pattern.. then clean them and repeat the test, compare to the data from flow charts..(for $40 dollars per injector it is not a logical step unless you have test stand and time to play with it).
In terms of additives- i like royal purple injector cleaner. They are one of the top performers.
Ideally, one would remove injectors, put them on test stand and check flow ammount, pattern.. then clean them and repeat the test, compare to the data from flow charts..(for $40 dollars per injector it is not a logical step unless you have test stand and time to play with it).
In terms of additives- i like royal purple injector cleaner. They are one of the top performers.
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