A tic tic sound synchronized with the rotation of the engine
RANYRIZK
MEMBER
2003 CADILLAC CTS
3.2L
V6
RWD
AUTOMATIC
150,000 MILES
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
Wednesday, December 28th, 2016 AT 7:09 AM
1 Reply
CARADIODOC
MECHANIC
33,873 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.