A tic tic sound synchronized with the rotation of the engine

2003 CADILLAC CTS
150,000 MILES • 3.2L • V6 • RWD • AUTOMATIC
Avatar
RANYRIZK
  • MEMBER
  • 39 POSTS
I hear a sound tic tic tic, synchronized with the rotation of the engine mainly when the engine is at load.
No DTC.
No problem in the lifters.
Best regards
Dec 27, 2016 at 11:09 PM
Advertisement
Avatar
CARADIODOC
  • ✓Experienced Mechanic
  • 34,407 POSTS
The best suspect is an exhaust leak. The clue you observed is it only occurs under load. The most common location for this is right where the exhaust manifold bolts to the engine block.
Dec 28, 2016 at 3:47 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle