PulpFriction

There have been modded SS's that have gotten F35 -> F23 swaps. Part of that may be availability though. Maybe someone knows what breaks on the F35's. They don't break easily, tho. Certainly a lot stronger than the automatics.

donbrew

The interwebs refer to the F35 as "a nightmare" and the F23 as far superior, cheaper and more available. The shift fork arrangement is cited.
I never heard of a problem on this site. Sweden vs Italy.

PulpFriction

Reliability varies with ratio. The 4.05 F35 in HHR SS is fine, and available w/ LSD. Most of the problems I've read about when they break behind heavily enhanced boosted 2.0's in Cobalts w/ 3.82:1, although I've heard of a few HHR turbos getting an F23 swap.

Part of the appeal of the F23 is price and availability.

But back to the OP, why check the level? Is there a problem?

Eli320

my transmission start sound in 5 and 4 when released the gas pedal