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Sedans Chevrolet Aveo Chevrolet Aveo Transmission Problems
87 messages, Last post on Jun 29, 2009 at 7:15 AM
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Hi. I have the automatic in my 2006 hatchback...it is suppose to have only 4 speeds/gears...mine shifts 5 times! I know when a car shifts and the tach. changes speed as well. I have a 5 speed gearbox! Does anyone else have this in there automatic? I thought it was a 5sp in the stick shift only. But I hit 5th gear at like 50mph. Do I have an odd model? Or is this in everyone elses automatic? The sticker says 4sp automatic. I sure am not getting a 5sp mpg! Still getting 18mpg if I drive like an old lady. I tried having fun in the car...I got 16mpg on that tank of gas! So..it's old lady driving for me again. but...anyone else notice they have 5 speeds in their automatic? 
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Replying to: flaaveo (Aug 06, 2006 6:27 am) |
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Replying to: flaaveo (Aug 06, 2006 6:27 am) I would bring the car back to the dealer on the mileage issue. City driving or not, no 2300 lb. car should get only 16-18 mpg. There may be a computer reset procedure that was never done before delivery that needs to be performed.
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Replying to: wave54 (Aug 06, 2006 9:09 pm) I agree about the mileage thing. I have to take it in and see if there is a computer problem. I can hear them now,'it hasnt broken in yet...',but I bet it is running rich in the fuel mix. I hope! But it seems nearly eveyone here has poor mileage,even the reviews on the Aveo says it has poor mileage for such a small car. Oh how I miss my shot at a Yaris! Even at $3,000 more! |
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Replying to: flaaveo (Aug 06, 2006 6:27 am) I thought it was a 5sp in the stick shift only. But I hit 5th gear at like 50mph. Do I have an odd model? Or is this in everyone elses automatic? The sticker says 4sp automatic. I sure am not getting a 5sp mpg! Still getting 18mpg if I drive like an old lady. I tried having fun in the car...I got 16mpg on that tank of gas! So..it's old lady driving for me again. but...anyone else notice they have 5 speeds in their automatic?" I don't have an answer for your low gas mileage but I do have a theory about your "5th" gear. The '06 models are equiped with an electronic throttle instead of the throttle-by-wire system found in the '04 and '05 models. This is what I've noticed on my '06: The car actually only has 4 gears but when it reaches a certian speed the ECU or electronic throttle control goes into a kind of cruise state. As far as your gas mileage issue, I would take the car to a dealer and have them retune/reflash the ECU.
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Replying to: vincent_vii (Aug 11, 2006 6:50 pm) Try tapping the brake lightly once the car is at speed and after that "last shift". If it feels like a downshift, that's the torque convertor unlocking -- they're designed to do that. It probably won't affect you in FL, but in cold weather, the auto trans won't shift into 4th until the engine reaches a certain temperature. It is a built-in feature to minimize emissions. My parking spot is too far away to start the car and go inside to let it warm up, so it takes about 1 1/2 miles of driving before it'll upshift to 4th when it's below freezing.
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Replying to: wave54 (Aug 12, 2006 12:31 am)
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Replying to: flaaveo (Aug 17, 2006 4:06 am) If you can feel it on your car, maybe the torque converter is not working properly. If it is slipping too much while you're not locked up, that would explain your poor fuel economy. Bottom line- have the dealer do a complete inspection of the tranny including torque converter.
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Replying to: doohickie (Oct 15, 2006 12:17 pm) Apparently, different people experience this differently. I have ALWAYS felt the lock-up in automatics I have owned or driven in the last 15 years from sub-compacts to full-size vans, from brand-new to very used. The sensation feels like another shift, but a bit gentler and usually between 40-50 mph unless under hard acceleration to merge from an off-ramp or up a hill, in which case it could be 60+ mph. Ditto for downshifts, as in climbing a hill -- as the engine loses power, you'll initially feel what seems to be a downshift, while in reality you're still in top gear but the torque convertor has unlocked to allow slippage and more torque for climbing. |
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