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Discussion Starter #1
Hey guys my 07 ESV just doesn't feel right, if I am driving at a slow speed and then mash the pedal it just doesn't want to do anything atmos likes its in a higher gear and dosent down shift when given a lot of throttle. It does it on the highway as well. There are no check engine lights on. Could this be a mass airflow sensor or something wrong with the cats or sensors??
 

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Your truck has torque management which is prevents you from getting 100% of the power right away when you mash the pedal.

What's the mileage on your rig? How long have you owned it? It's maybe time to do some maintenance (air filter, throttle body cleaning, plugs, wires, etc).
 

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Discussion Starter #3
It has 140,000 miles. I have had it for 5 months. When we bought I received all service records and before I picked it up the dealership replaced the plugs and cleaned the TB and replaced the air filter. It just seems weird I also have a 2008 Silverado 2500 it dosent do that it goes when you give it throttle, it will drop to a lower gear
 
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