Magnuson Supercharger, Valve Train and other supporting mods. 2007-2013, 5.3L Chevy Tahoe

[HiHoeSilver]

ok, decided to clean my TB and MAF, before had idle occurring at 13-14% throttle angle and hard downshift coming to a stop, will see if it helps.

View attachment 222846

How'd this go?

 

[Chrismnj]

How'd this go?

not sure, waiting for BB to look over my driving log, but still experiencing hard downshift.

 

[HiHoeSilver]

not sure, waiting for BB to look over my driving log, but still experiencing hard downshift.

Where's the tps% now?

 

[Chrismnj]

Where's the tps% now?

I figured would drive it for a while before checking that, just in case TB need to recalibrate not sure if I am correct on that, but I hope it will be in 6-8%

 

[HiHoeSilver]

I figured would drive it for a while before checking that, just in case TB need to recalibrate not sure if I correct on that, but I hope it will be in 6-8%

Interested to hear results. When I did mine, it went from 12.9 to 2.7

 

[Chrismnj]

Interested to hear results. When I did mine, it went from 12.9 to 2.7

Don’t forget I did cam swap

 

[HiHoeSilver]

Don’t forget I did cam swap

Jah, mon.

 

[Chrismnj]

Ok, I need some help here, what else could cause hard downshift?

 

[randeez]

your foot on the floor

 

[Chrismnj]

your foot on the floor

That will be up shift which is super nice and smooth even when flooring it.