Hello, I have a 2005 Grand Cherokee v6 3.7l. For the past 4 months or so, I've had this (what sounds like an exhaust leak) noise coming from the truck! I've had the smoke tester on it, no leaks found. No codes showing from the cats. Also seems like I've lost some power ever since the noise started. Mostly noticeable only when strain is on the motor, no noise at idle. Has anyone had this problem?
Exhaust leak??
