engine noise when idling

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 3 of 3
2008-2013 Cadillac CTS Performance Mods Discussion, engine noise when idling in Cadillac CTS Second Generation Forum - 2008-2013; Greetings The 2011 CTS 3.6 is new to me. I noticed when the car is idling there is what sounds ...
  1. #1
    BRP1616 is offline Cadillac Owners Member
    Automobile(s): 2011 CTS AWD Sedan performance
    Join Date
    May 2014
    Sunshine Coast BC

    engine noise when idling

    The 2011 CTS 3.6 is new to me. I noticed when the car is idling there is what sounds like a belt noise coming from the front of the engine. The CTS has 40,000kms on it. Are the serpentine belts on the 3.6 noted to get noisy?

  2. Remove Advertisements

  3. #2
    cwest24 is offline Cadillac Owners Member
    Join Date
    Apr 2013
    I'm having the same problem/noise on my 2008 CTS 3.6. Let me know if you figure it out.

  4. #3
    SC2150's Avatar
    SC2150 is offline Cadillac Owners Connoisseur
    Automobile(s): CTS
    Join Date
    Feb 2012
    Palmetto, FL

    Re: engine noise when idling

    tensioner and idler pulley would be where I would look first.....remove the belt and turn the pulley feeling for a rough bearing/race. If not silk smooth, then replace. If not those, water pump would be next and then AC compressor.

  5. Remove Advertisements
    Cadillac Forums

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

What Cadillac(s) do you own? (Or type NONE)

Please select your insurance company (Optional)

Your date of birth and age are displayed in several places on the forum. Only the administrator will have access to your date of birth should you choose to hide it via the privacy option below.


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts