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| Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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05-13-2022, 01:48 PM
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FRS Rocker arm issues? Or rod knock?
This sound seems to be coming from cylinder 3, checked with a mechanics stethoscope to find the source. Anyone have a idea?
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05-13-2022, 02:01 PM
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#2 |
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Well, there are two modes of rocker arm failure that are known. It either spits it out in which case you will probably have a CEL for engine missfire along with other possible issues. Or the axle can slide out. I have never seen the axle issue and don't know what the exact symptoms are. I can't imagine the rocker staying in place for long if that is the case. Doesn't sound like rod knock.
Is this an MT or AT car? Have you stuck a stethoscope to the bell housing?
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05-13-2022, 03:33 PM
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So far it's been doing this for a little while, it didn't seem like rod knock to me and I know there are rocker arm issues, where they make stoppers for them. So far I haven't checked the bell housing, it is a AT for the time being till I do a swap
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05-13-2022, 03:38 PM
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AT vacuum pump. The noise is bang on. It is right back there by cylinder 3.
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05-13-2022, 03:39 PM
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05-13-2022, 03:41 PM
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#6 | |
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Don’t deal well with dumb
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Quote:
https://www.ft86club.com/forums/show....php?p=2786240
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Racecar spelled backwards is Racecar, because Racecar.
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05-13-2022, 03:48 PM
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#7 | |
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05-13-2022, 04:40 PM
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Don’t deal well with dumb
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Quote:
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Racecar spelled backwards is Racecar, because Racecar.
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| The Following User Says Thank You to Tcoat For This Useful Post: | DJjoey0812 (05-13-2022) |
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| engine knock, issues, noise., rocker arm |
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