i kno this is a ranger forum, but since you guys have helped with my ranger, i stretch out in desperation, we bought an 07 grand cherokee limited with a hemi. we noticed a grunting sound when the vehicle is stopped, slowing to a stop around 20mph, shifting into drive from a stop, or when the wheel is turned really sharp. the sound is like a rattling window, and it is coming from the back passenger side, almost over the wheel. the jeep is all awd and has 66k on it. we cant figure it out, and we cant find anything online. im scratching my head on this one. anyone with ideas please help!

 

also i'd like to add it does it most when i let off the brakes at a stop, and the whole jeep surges, kind of feels like an ac clutch on a ranger, how the engine ticks, then kinda loweres the idle

 

Loose heat shield on the exhaust somewhere ?

 

bad exhaust manifold gasket?

 

Because its a chrysler product?