Last post on Jun 22, 2013 at 3:27 AM
You are in the Cadillac DTS
What is this discussion about?
Cadillac DTS, Sedan
#3 of 16 Re: Humming Noise 2007 [jack211]
Jun 06, 2008 (8:43 am)
I have a 2006 DTS the noise I hear sounds like an olld 8 track rewinding, it happens between 42 mph and 46 mph below or aboce that I don't hear it.
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.
#4 of 16 Re: Humming Noise 2007 [janicedaniel]
Jun 07, 2008 (7:57 am)
I would keep all the paperwork on all the trips to the dealerships you made with this problem, then look into the lemon-law. I believe if the dealer can't fix the problem after four times (may vary by state), you might be entitled to a new car or a GM buyback. Anyone know how to begin the lemon-law process?
#5 of 16 Re: Humming Noise 2007 [kenb757]
Jun 07, 2008 (11:11 am)
I am happy to say that Cadillac FINALLY fixed my problem with the high pitched noise six months ago. There was a service bulletin out 6 months prior to that--Mmm Go Figure...The car is an absolute pleasure to drive and have had no more problems. They rerouted some kind of cable under the hood that was routed the wrong way that was to close to the fire wall.
#6 of 16 Re: Humming Noise 2007 [janicedaniel]
Jun 08, 2008 (9:19 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."
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 16 Re: Humming Noise 2007 [jack211]
Jul 05, 2009 (3:32 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.
#9 of 16 2008 DTS grinding/rubbing/ noise
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 16 Re: Humming Noise 2007 [bob247]
Sep 24, 2009 (5:14 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
#11 of 16 Re: Humming Noise 2007 [bendo42]
Mar 20, 2010 (2:21 am)
bendo42: I have the exact same problem. Although my noise does go away completely if shifted into park or neutral. The noise doesn't happen if the A/C is off however. Have you found a solution yet?
#12 of 16 DTS Humming Noise
Mar 20, 2010 (6:11 am)
Re: bendo42: I have not heard the noise this winter. However I have not driven the car very far, only short trips. I am wondering if air vents are part of the problem, it happens more during A/C temperature changes. It is also possible if it's the cable as mentioned above, it has moved. No real solution here. See what summer brings.