All normal for the six speeds. Keep in mind that GM's press releases about these transmissions also mention something about grade logic, something I'm sure I'm fairly safe saying isn't in any of the GM four speeds I've owned.
09-6-speed with weak Exhaust Brake
I decided to start a new thread because this title describe the problem.
My wife's new Malibu will less than 1K miles acts as if it has a weak exhaust brake.
This morning in my test drive: At the crest of a long downhill run I release the gas pedal @70 MPH. During the trip down hill you could feel the trans engaged, and @ 45 +/- MPH you could feel the trans downshift and a jump in RPM. All this with no pressure on gas pedal or brake. I repeated this on the road test twice.
My concern is wear on trans and added heat to ATF.
Ken
My wife's new Malibu will less than 1K miles acts as if it has a weak exhaust brake.
This morning in my test drive: At the crest of a long downhill run I release the gas pedal @70 MPH. During the trip down hill you could feel the trans engaged, and @ 45 +/- MPH you could feel the trans downshift and a jump in RPM. All this with no pressure on gas pedal or brake. I repeated this on the road test twice.
My concern is wear on trans and added heat to ATF.
Ken
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