Need to locate a ticking noise

Asked by Guru6KR6M Mar 28, 2020 at 12:20 PM about the 2006 Cadillac STS V6 RWD

Question type: Maintenance & Repair

I have a 2006 Cadillac sts.  V6 base model. 87000
miles. Just purchased 1 month ago. Starting
making a slight tick sound while idling and makes
a loud tick when it hits 15mph to 20mph, what
would cause that sound and what fo i need to
replace.

3 Answers
26,865

taver91 answered 4 years ago

Could also be a floated hydraulic lifter, if so equipped, or a valve needs adjustment. Does the tick increase with engine speed (RPM's) or car speed (MPH)? Both of these should increase with RPM's not car speed.

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Cheap_Toyota answered 3 years ago

If it's one of the Cadillacs made in this century, it might be the clock ticking down to the end of the car's life. Get rid of it now.

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