i have an exhaust leak in my 2005 buick rainier cxl 4.2l engine will that cause a tic tic tic sound

Asked by May 20, 2017 at 09:39 AM about the 2005 Buick Rainier CXL AWD

Question type: Maintenance & Repair

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2 Answers


An exhaust leak would be a cause for the ticking sound. Otherwise it would be coming from the lifters in the engine.

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Tic tic tic, could very well be your fan clutch. Very well documented about this problem on our platform. If you just replaced the clutch, try exchanging it with a newer one. I bought one with a lifetime warranty, brand new out of the box had the ticking problem. You may go through a couple before you get one that doesn't tick. I've been through this problem with 3 Trailblazers myself, same engine and platform.

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