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 ...
- 06-21-14 04:36 PM #1Cadillac 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?
- 06-22-14 04:46 AM #2Cadillac 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.
- 06-22-14 10:44 AM #3
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.
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