Whoosh sound when stabbing throttle
10-26-2023, 03:53 PM
#1
Whoosh sound when stabbing throttle
The other day I noticed my 2007 Sierra Classic 5.3/4L60E makes a BOV or whoosh sound of the converter is locked and you stab the throttle. I'm assuming it's coming from the transmission since so far it only happens when the converter is locked. The sound is more noticeable from the passenger seat, but it definitely sounds like some kind of pressure bleeding off.
Say you're cruising at 45 on flat ground and lean on it to increase to 55, the initial application of throttle produces a sound like the BOV on my procharged Sierra.
I don't see or feel any slippage when the sound is made. I did tune the truck with 95/100 tcc apply settings to eliminate pwm of the converter.
Say you're cruising at 45 on flat ground and lean on it to increase to 55, the initial application of throttle produces a sound like the BOV on my procharged Sierra.
I don't see or feel any slippage when the sound is made. I did tune the truck with 95/100 tcc apply settings to eliminate pwm of the converter.
10-26-2023, 08:54 PM
#2
I secretly installed a Procharger. You're welcome. 
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HawkZ28 (10-26-2023)
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