Subject	This is not typical VTC noise
Posted by	LitlElvis on February 09, 2013 at 10:38 AM
	This message has been viewed 438 times.
In Reply To	You down with VTCs, yeah you know me! posted by OverZealous (CT) on February 08, 2013 at 09:02 PM
Message	It’s definitely the VTC making noise, but what’s causing it seems atypical and the noise could be a symptom of low oil pressure rather than a bad VTC. Typically, the noise is prevalent during idle and when the solenoids are activated the noise goes away but in your instance, activating the solenoids is causing the noise to appear. How’s your oil pressure when you’re testing? If it’s low, there may not be enough oil pressure at idle to fully activate the VTC; to a certain extent there may be just enough to unseat the inner piston to help create the noise. Rev the engine to see if more RPM will create more oil pressure and make the noise go away.
Follow Ups	You down with VTCs, yeah you know me! - OverZealous (CT) 21:02:35 02/08/13 Clever idea. I like it. What kind of problem are - JMartz 21:31:53 02/08/13 Interesting - BlackholeZ 22:18:09 02/08/13 good way to flush a dirty coolant system. (n/m) - Dane (Houston) 23:15:19 02/08/13 BDE would be happy to hear from you. (n/m) - Bernie (NoVA) 01:30:10 02/09/13 Do you agree this is the VTC going bad? - OverZealous (CT) 08:22:38 02/09/13 Chilly but all clear - and yes your VTC is banging around. (n/m) - Bernie (NoVA) 09:01:01 02/09/13 this looks like it could end badly...lol - Zski 08:25:15 02/09/13 Sig-worthy: - bartz32tt 08:45:40 02/09/13 Hahaha! I didn't even think of that when I wrote it. (n/m) - OverZealous (CT) 13:38:35 02/09/13 Hahaha! (n/m) - Jayru 16:12:45 02/10/13 Very nice documentation of your diagnostic procedures. - cherry 09:41:43 02/09/13 Thanks (n/m) - OverZealous (CT) 13:40:30 02/09/13 I thought disconnecting the VTC solenoid was not diagnostic? - ZXoltan 10:28:22 02/09/13 This is not typical VTC noise - LitlElvis 10:38:43 02/09/13 More RPM and the noise does go away... - OverZealous (CT) 13:52:34 02/09/13 i have the exact same problem. not as 'bad' as yours - genic 14:45:10 02/10/13 This story is far from over. See LitlElvis's comments above. - OverZealous (CT) 17:37:24 02/10/13 The sending units are the weakest part of the oil pressure - ZXoltan 22:05:45 02/10/13 Diagnostic procedure is well refined. More to come... - OverZealous (CT) 21:48:19 02/11/13
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