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Cadillac DTS Humming Noise

10 messages,  Last post on Sep 24, 2009 at 5:14 PM

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#6 of 10 Re: Humming Noise 2007 [janicedaniel] by texasjim Jun 08, 2008 (9:19 am)
Replying to: janicedaniel (Jun 06, 2008 8:43 am) "On some 2007-08 Cadillac DTS vehicles equipped with 4T80E MH1 transmission, a ticking/fluttering noise can be heard in the vehicle at highway speed.   The noise is generated by the modulation of the TCC solenoid. Movement within the solenoid excites the shift cable, resulting in a low level, high frequency noise that can be heard in the passenger compartment   To correct the condition, install a solid lead clamp mass damper to the cable. This has been shown to significantly reduce or eliminate the noise."
#7 of 10 dts niose by grullon10 Jan 27, 2009 (10:15 pm)
I have 2006 cadillac dts that when I press the gas it sound like snoring or mmm. Around the left side of the engine bay. Is there a way to fix the problem.
#8 of 10 Re: Humming Noise 2007 [jack211] by bob247 Jul 05, 2009 (3:32 pm)
Replying to: jack211 (Nov 07, 2007 12:05 pm) Several of the problems I had or am still having the dealer tells me they haven't seen that before. Think this is just a pat answer. Replies to this message: danbeth2 (Sep 24, 2009 5:14 pm)
#9 of 10 2008 DTS grinding/rubbing/ noise by hook35 Aug 07, 2009 (11:27 am)
I have a 2008 DTS that also has the humming/grinding/rubbing noise on occasion. I, at this point can not duplicate it at will. It does it more often on hard throttle, but can happen just in normal driving. Of course it can not be diagnosed at dealer, when it doesn't happen all the time. Please post results, if cause is found by anyone.I will do the same, if I find the cause.
#10 of 10 Re: Humming Noise 2007 [bob247] by danbeth2 Sep 24, 2009 (5:14 pm)
Replying to: bob247 (Jul 05, 2009 3:32 pm) i'm also the owner of a 2008 dts with a high pitched humming noise between 15 - 30 mph, you step on the gas to hear it and as soon as you let off it goes away, very annoying, also if anyone out there has a problem at about 45 mph, it feels like it won't shift and gets somewhat sluggish, it's a weird problem, also very annoying when you're cruising just around 45 to 55, i'm sure telling the dealer will be a waste of time

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