'98 V70 GLT Ticking

MoparWade · Post by **MoparWade** » 03 Jul 2014, 21:14

Was out driving this evening. Decided I hadn't really opened it up in a while. Mash the pedal and as soon as the boost built up it started missing. Pulled into my driveway a minute later and noticed the I now have a ticking. Not quite a knock like a spun bearing but what sounds like some one tapping a screwdriver against metal. It matches my RPM and doesn't seem to flutter. Dead lifter? Ideas?

Post by **rspi** » 04 Jul 2014, 04:23

Is it still missing? Do you have a CEL? You might have a burnt valve.

MoparWade · Post by **MoparWade** » 04 Jul 2014, 07:30

No CEL. I actually suspect that the miss was caused by the boost going above what I am tuned for but I still feel like there must be some connection.

Post by **mecheng** » 04 Jul 2014, 09:06

Does the noise reduce when adding oil?

MoparWade · Post by **MoparWade** » 04 Jul 2014, 09:58

Haven't added any oil yet. If it is a lifter it is just one.

MoparWade · Post by **MoparWade** » 05 Jul 2014, 22:55

Added oil and no change. It did seem to be a bit louder with cold start.

Post by **jimmy57** » 05 Jul 2014, 23:06

Bent connecting rod, piston skirt rattle.
If it is too fast for lifter rattle then this is a real possibility. Lifter rattle is once every two crank revolutions.

Did it run REALLY good just prior to the misfiring like symptoms?

Bent rod caused piston skirt rattle will sound out louder behind and below exhaust manifold.

Post by **abscate** » 06 Jul 2014, 05:52

Ugh. Are you at stock boost or have you been playing