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Sedans Cadillac DTS Cadillac DTS Humming Noise
10 messages, Last post on Sep 24, 2009 at 5:14 PM
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| I own 3 Cadillac DTS 2007 models and they all have the same problem.......an annoying humming noise!!! The noise starts when you shift from Parking to Drive or Reverse. Only in Neutral is there peace and quiet. When you turn on the A/C the humming gets louder. When idleing you feel your bake pedals vibrate. I have taken these vehicles to the dealer, and he checked out my cars plus another 4 cars from the lot (1 is an '08 model) and they were even louder then mine. I would like to know if anyone else is experiencing the same problem. *Make sure your radio is off so you hear the noise* | |
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Replying to: bendo42 (Sep 27, 2007 6:04 pm) Jack Here. I own a 2006 DTS and think I have the same problem that you are experiencing. After the vehicle warms up, there is a high-pitched shrill (sounds like crickets to me) that comes and goes as you throttle down. It's more noticeabe at a harder throttle, but then again it is not always constant. It drives us crazy when we are on a road trip. It's like taking a constant hearing test. I had the car back to the dealer-they havnt heard of this before-I find that hard to believe that I have the only DTS Cadillac with this problem. I would like to talk to you if possible. Maybe we can get something done about this. |
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Replying to: jack211 (Nov 07, 2007 12:05 pm) I have test drove a 2007 and a 2008, the 2007 was louder and the 2008 was very quite. The dealership keeps telling me that don't know what it is and can't fix it. I called Cadillac about that and another problem and they told me to take it to another Dealership. Going next week, will give you an update if it gets fixed. Janice  If you know anything aboubt a noise coming from the front end that sounds like a rubbing/grinding please let me know, they can't figure that one out either after 8 times and now tell me that they won't try to figure it out any more. 
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Replying to: janicedaniel (Jun 06, 2008 8:43 am)
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Replying to: kenb757 (Jun 07, 2008 7:57 am) Jack |
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Replying to: janicedaniel (Jun 06, 2008 8:43 am) 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." |
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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. |
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Replying to: jack211 (Nov 07, 2007 12:05 pm)
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| 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. | |
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Replying to: bob247 (Jul 05, 2009 3:32 pm) |
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