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Transmission problems and rpm on 2010 Chevrolet Cobalt LT?

When I'm driving my car its like it stalls when its time to take off. I tried putting it in park at every stop and it helps a little for a smoother take off. I noticed that I didn't have these problems unless I put a little transmission fluid into my car (that's what my neighbor suggested). Its been at least a few weeks now the problem is back. The rpm also jumps when I accelerate. In need of some serious help my car is starting to freak me out.

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My engine light came on and it said no malfunction transmission

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What makes my 2010 chevy cobalt not go in reverse

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my 2010 chevy cobolt shifts back and forth at 35-40 mph is their and additive that I can add that would help with this problem. it has been doing this for at least 50,000 miles.

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Did either of you figure out the problem ? My 2010 cobalt is doing exactly as described above

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Mine has been doing that ever since I got it

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An auto transmission receives 100% of the motor's drive through a part called the torque converter. This devices basically pushes transmission fluid from a spinning part on the engine side, to the other part that connects to the auto box. If you have no transmission fluid, you have no way to transfer that torque. If you are low, well it makes the job a lot harder. Auto transmissions also have lots of internal piping, when selecting park or drive or reverse, all sorts of valves open and close inside to divert the fluid to different parts of the box. When you stick it in park, it might free up some fluid in the box, that allows more to flow into the torque converter just to get you going.

You say that when you accelerate the rpm's jump up. This very much sounds like low transmission fluid. You need to seriously check the fluid level, and make sure there are no leaks (as it sounds like you have a leak for it to have come out). Check the level, if it's low, add in more. The car might have to be running when you check it, refer to the owners manual for the correct procedure.

The transmission fluid will have two pipes coming out of it going towards the radiator. check those pips for wear, as well as the lower portion of the radiator where the transmission cooler is (most likely part of the engine radiator).

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how do you check the fluid

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On a 2010 cobalt LT there is no dipstick, you have to remove a small plug on the passenger side. Its like checking the rear differential on any car,truck. Pull the plug,if some oil leaks your good. If not add some!

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It's possibly your TCM module you can get one from the junkyard. Sometimes the car will calibrate to the TCM. Transmission control module. Sometimes you have to get them reprogrammed. I took two of them from the junkyard in one worked. In Florida the TCM gets too hot. This is why the transmission has problems. Also your radiator may have breached with the transmission fluid if your transmission fluid is pinkish you have a serious problem. I wouldn't add water if it's pink. in this case you'll need a new radiator possibly transmission also. Try pouring some Lucas transmission it will probably fix the problem. If it's not TCM.

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A live data scanner would probably show issues with the input speed signal. Should have it right when it is cold when you strt the car. May intermittently display as a P0717.

The sensor may need replacement or could be internal harness short.

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