Hello I just bought a 2011 Dodge Caliber for my wife car runs great but this morning I heard it marking knocking noises from the motor when she started it it did it for like 5-10 min then went away I checked all fluid levels are the fluids have been changed.
does anyone know why it would do that
it has 111,000 miles
it has the 2.0litter engine
I uploaded a small video clip of the sound it makes

 

if the oil level is good and the noise is gone after it warms up it probably piston slap. Let it warm up for 1minute before driving off and drive easy until it warms up. Its due to clearance in the pistons and cylinder bore. once the pistion warms up and expands the clearance is taken up. It won't leave you stranded. The only fix is a teardown. my 2000 chevy and 2007 ram did it and I never had a concern.

 

Ok ty my biggest concern was it leaving my wife stranded

 

Remove the belt and see if the noise goes away. My money on on the alternator pulley. It is a one way clutch and they are known to fail. I recently replaced the one on my wife's 09 Caliber. Sounded like a diesel and made all kinds of knocking noises. Here is the one I got, It's a Gates 37018p .

 

the pulley noise; did it go away when the engine warmed up