Loud ticking at high rpms

Fuzzybaseball58@alien.topB to Mechanic Advice@gearhead.townEnglish · 10 months ago

Sound up all the way. 2006 Subaru Legacy GT 212k miles. As you can see in the last couple seconds of the video the ticking in this instance started at about 4500 RPMS and then stops after the engine downshifts. It makes the engine light blink sometimes. The engine light stays on most of the time for an EGT sensor code that isn’t related (I think) and a serial communication link error that comes and goes. There’s also a piston #4 misfire code which is most likely related. Sorry for the blinker noise. Noise is much louder than the phone mic does justice. Ideas?

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