Q: Car shifts hard and rpms rev high on there own or car doesn't shift at all, ABS and traction control lights are on also. 2005 Chevrolet Cobalt

asked by on

Two weeks ago I went to pull away from a stop sign and the car hesitated to accelerate. That only lasted a day or two and then it went back to driving fine. Then just this past Sunday I jumped on the interstate and my cars rpms were almost into the red zone, so I backed off the gas and got off at the first exit. I pulled into a gas station shut car off and proceeded to take back roads home. I noticed the car would shift into 2nd hard and not want to shift into 3rd but would occasionally but once it would the car would rev on its own. Well I took the car to a shop and they told me it was a little low on transmission fluid but not enough to make the car drive like that. He stated he could service the tranny for $250 but wasn't guaranteeing it would fix anything. Well I don't want to fork the money out if its not going to be the problem. The car is now home and no transmission shop can get me in for a coupe weeks. Also the traction control and abs light is on. Is this tranny problems?

My car has 147000 miles.
My car has an automatic transmission.

Hi there - first task is to be sure the transmission fluid is at the proper level, and in good condition (more pink than black, and no burned smell). Low fluid, or dirty fluid, can cause lots of unexpected transmission behavior. The second task is to check for problem codes, whether the Check Engine light is illuminated or not. The possible problem we’re looking for here is a failing throttle position sensor - which interacts with the transmission controller and affects shifting behavior. I recommend a transmission inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car shifts hard and rpms rev high on there own or car doesn't shift at all, ABS and traction control lights are on also. 2005 Chevrolet Cobalt

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 2013 Chevy cruz wheel replacement

The stock wheel diameter for this vehicle appears to be 16 inches or, optionally, 17 inches. To return the vehicle to stock, it is best to buy a set of OEM rims from a GM dealer. Aftermarket rims may have...

Q: Is it better to just change trans fluid instead of flushing the whole system?

When it comes to vehicles over 5 years or 60,000 miles, my preference is to drain the transmission through the pan and replace the filter, especially if the transmission has never been serviced. The sales pitch is of course that...

Q: Dip stick doesn't register ANY oil though I just made oil/filter change. No obvious leaks above or below. Let run, but same result

Many engines require that the engine be started up to circulate oil through the filter and then let the engine sit for several minutes to an hour before checking. This will allow all the oil to fall back into the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...