Slappin tranny???
12-26-2015, 12:06 AM
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Slappin tranny??? Has anyone running the 4L60 4 speed automatic tranny... every hear a "slap" sound when you first fire the truck up and start driving.
On my 09 chevy pickup, it does this sometimes but it's only right when I start it up and only with it's first shift from 1st to 2nd and it'll do it whether it's cold, or even if it's fully warmed up and I stop somewhere and come back out and drive off... it'll do it again.
It doesn't seem to hurt anything and the shifting is normal... I was just curious if anyone has run across this and knew what it was and if anything could be / should be done about it.
On my 09 chevy pickup, it does this sometimes but it's only right when I start it up and only with it's first shift from 1st to 2nd and it'll do it whether it's cold, or even if it's fully warmed up and I stop somewhere and come back out and drive off... it'll do it again.
It doesn't seem to hurt anything and the shifting is normal... I was just curious if anyone has run across this and knew what it was and if anything could be / should be done about it.
12-28-2015, 03:27 PM
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It mostly does it when it's cold, although it has done it a few times when it is warmed up when I turn it off for a while (like when grocery shopping) and come back out... it'll do it again.
But, it never shifts hard or doesn't otherwise give any indication that anything is wrong other than the slapping sound and that is only when it is coming out of first gear.
But, it never shifts hard or doesn't otherwise give any indication that anything is wrong other than the slapping sound and that is only when it is coming out of first gear.