I have a 2006 chevy cobalt. Today it felt like it bumps when it changes into gear. Can you tell me why it does that? It has been changing out smoothly.

Question edited for clarity.
Question moved to model category.

Yes there is. Articles and Videos

https://www.google.com/search?q=2006+Chevy+Cobalt+SS.+Relearn+crankshaft+position+sensor

..

Question edited for full year make model.
Question moved to sub category.

Check out the link

https://www.google.com/search?q=2006+Chevy+Cobalt+Ecotec+2.2.+change+the+Secondary+air+pump

..

On some old Buicks and Oldsmobiles the overdrive would stick on. A bandaid cure for them was to unplug the cable under the hood, but you no longer had overdrive. I heard that changing the transmission fluid would clear that up. There's no overdrive in Reverse.. placing the car in 1st or 2nd gear could bypass o/d also if they don't use the same gear set. Once up-to-speed, place the car in Drive. This only works if the reason the car dies is it can't accelerate in that high a gear at such a slow speed.

all spark plugs have to be changed sooner or later,it depends what type of plugs you have in your vehicle .........cheers.

Hello and welcome. this noise is normally caused by a noisey steering I-shaft. there is a steering shaft that goes in between the steering column and the steering gear. this shaft has a slip joint that becomes noisey. all you need to do is lube the i-shaft with some special lube and you will be good to go

reduced engine power message chevy cobalt 2006,cars sputtering, and when i presses on the gas the car wont move, i can put the pedal to the floor and the rpm's dont bulge

Have you tried shifting the gears completely through and then putting the car in park. It sounds like the car isn't able to be put completely in park to release the key. Try putting the car in N and removing the key. Even thought the car may not completely be in park to release the key, The gear most likely is in park but not enough to make the switch/sensor to release.

ur gear shift has a little plastic bar on gear shift and it has crack on the side u cant see have it changed out and both of ur problems will be solved at same time.

the battery is located in the trunk under the carpet where the spare tire is located, loosen the 10 mm nuts on the terminals and pull them off, gently pull the vent hose from the battery, loosen the bolt for the battery hold down, usually a 13mm or 15mm, remove battery and reverse the process to install

fuel filter should be changed, door hinges an hood latch lubed.