Throttle issues

[Jared91]

Ive got a 2014 silverado 1500 and since i bought it the throttle had been weird. To start its very unresponsive or unsensitive sometimes it seems i gotta have it floored to get enough power out of it to even pass someone. The other thing I've noticed is it seem the rpms kind of stick so if im siting and i rev it the rpms go up but then it almost stays high and comes back down really slow when i let off the throttle. Just wondering if something may be wrong if this is normal or if there's something i can do to improve it.

[Silverado4x4]

1 hour ago, Jared91 said:

Ive got a 2014 silverado 1500 and since i bought it the throttle had been weird. To start its very unresponsive or unsensitive sometimes it seems i gotta have it floored to get enough power out of it to even pass someone. The other thing I've noticed is it seem the rpms kind of stick so if im siting and i rev it the rpms go up but then it almost stays high and comes back down really slow when i let off the throttle. Just wondering if something may be wrong if this is normal or if there's something i can do to improve it.

What motor?

[Jared91]

2 minutes ago, Silverado4x4 said:

What motor?

5.3 v8

[kickass audio]

have you pulled the air box and looked at the throttle body to see if it's loaded up with oil from the evap system and is jamming up the blade a little? Also look at the Mass Air Flow sensor to see that it's not filthy too.

 

Something the 14's and above had is that they are drive by wire and if you watch carefully the gas pedal will have a bit of a dead zone because the pedal is not tightly bolted to the firewall and the bottom area of the pedal on the firewall will give way as you depress the pedal. My fix was to use rubber paddles from my old snowblower to wedge behind the pedal and against the firewall. That problem would only be noticed when you slightly tap the gas you will have a bit of a dead spot before the RPM reacts to you pressing the gas.