Mustang Problem

[NiM130]

i recently bought a 2003 auto v6 mustang so I don't have much experience with the car. Anyway i was driving home tonight and the car started bucking back and forth. It seemed like it was struggling to rev for some reason, any help would be appreciated as to why this would be happening. No mods have been done on the car but a friend took out my air filter to see what it would sound like. Thanks in advance. Oh, and a rattling noise can be heard coming from under the car. - Chris

 

[AP1995V6]

put the air filter back on

 

[yellow5.0cobra]

Is there a SES light on(aka SERVICE ENGINE SOON)?

Is the car still under warranty?

 

[JOSTANG75]

Why would anyone take their filter off? Put it back on and if it still continues and you notice a drop on gas mileage than you might have a bad O2 sensor. But put the filter back on or else you'll be getting all kinds of dirt and gunk into your throttle body.

 

[SpectorV]

make sure the filter is on.... and you may want to clean your maf and check the screen thats in there for dirty and junk, clean it all out wiht electronic contact cleaner no residue autozone has it.