Thread: Couple 'a questions: GP relay voltage; shake & tick
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Old 03-27-2017, 02:02 PM
Bimmer-Bob Bimmer-Bob is offline
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Join Date: Jul 2016
Location: Anacortes, WA
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Quote:
Originally Posted by Diseasel300 View Post
2: Sounds like injector knock or "nailing" on one or more cylinders. When's the last time you had the injectors rebuilt? I recently chased down a nailing/knock on my SDL that was similar to yours, but only on one cylinder. Turned out to be a bad delivery valve (literally the valve, not the seals). It would nail like that up to around 12-1300RPM and sounded like someone hammering on the engine. Since the service it's smooth and quiet. Took care of the shaking idle too.
AFAIK, the injectors are original. That's actually good to hear, since I was planning on taking care of that over the spring or summer anyway - it'll be nice if that's all it takes.
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