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Why is my 2008 Cadillac CTS making a ticking noise?
I bought a used 2008 Cadillac CTS a few years ago and it has just recently started making a ticking noise—it’s most prominent upon initial start-up, but you can hear it all the time. Why is my 2008 Cadillac CTS making a ticking noise?
Andrew Biro · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
From your description, it sounds like your 2008 Cadillac CTS is making a ticking noise due to a leak in the exhaust system, possibly in the exhaust manifold itself.
This type of leak is known for producing a ticking or tapping sound that is most noticeable when you first turn the car on, but that can still be heard—if only faintly—at any point while the vehicle is running.
Of course, there are other issues that might cause your 2008 Cadillac CTS to make ticking noise, such as a bad hydraulic lifter or low engine oil, but your description matches that of a leaky exhaust system.
All in all, your best bet is to have a mechanic take a look and diagnose the issue for you before jumping to conclusions.
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