2001 Malibu 70 is known to develop surging problems between 40 and 60 mph if the car does not have the correct engine oil level. A confirmation that the engine surge is because of low transmission oil or poor transmission oil is a burnt oil smell when the car stops.
Torque converter going bad
I'd check the hose going to the 50 mph transmission lock up modulator first as it sounds like the likely culprit.
4.9 hrs @ 70 mph
101 mph.
109 mph.
116 mph.
we had an 08 malibu rental car that had a 2.4 liter 4 cylinder engine and I had it up to 135mph
If your 2006 Malibu will not go over 40 mph it may be stuck in "limp home mode." You will need to have the car checked out by a mechanic.
To convert kilometers per hour (km/h) to miles per hour (mph) for a 2008 Malibu, you can use the conversion factor where 1 km/h is approximately equal to 0.621371 mph. Simply multiply the speed in km/h by this factor. For example, if you're traveling at 100 km/h, the speed in mph would be about 62.14 mph. You can also find speedometer settings or use a GPS for real-time conversions.
Take the transmission out of overdrive. I believe there is a button right on the gear shift to do this with.
I found this while researching my engine trouble on http://www.2carpros.com... Question: 1994 Nissan Sentra mileage: 135,000. Car surges/stutters if speed is between 50 mph to 60 mph when feathering the accelerator. Example: Coming down off the Chesapeake Bay Bridge in Md. when not accelerating but not decelerating between 50 mph to 60 mph the car starts surging/stuttering. Have replaced all ignition parts/fuel filter. Car runs smooth otherwise. Thanks Answer: The EGR valve may be cycling opening and closing. Replacing the valve may cure the surging. It is also possible, if your car is equipped with air conditioning, that the air conditioning compressor may be cycling on and off, lugging the motor. ----------------------------------------------- My car is currently at the dealership as it was surging violently at all speeds but not all the time. They are leaning towrads EGR valve at this point.
about 65-70 mph