Originally Posted by mrpep
I was using the tow/haul button, so hitting 4K rpm is ok? What about when it seems to hold a high rpm for a while ? And it doesn't seem to switch gear? It feels like that is not normal, sometimes I will switch from D to 3 when I feel this. Sometimes this helps get that gear and sometimes it doesn't. Should I ever use 2??
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No need to switch to 3rd when its doing that. Its the torque converter working in its lock / lockout mode before dropping a gear.
I will have to look at my escalade tomorrow, but i think those motors are designed to handle 6,000 or so rpms.
If it makes you feel any better my big block boat turns over 4,000 rpms almost the whole time i run it. And many times i am running 4,500-5,000 rpms.
Granted marine engines are designed for that, while vehicle engines are more designed for fuel economy these days.
I dont think I've ever shifted down to 2nd gear, or 3rd even except on the older trucks, like my '88 or '96 chevys i had or an old powerstroke with the tow mode dropping off the OD.
Hearing you explain it, i think your fine. I bought a gas Silverado a month or so ago, and i am really surprised how much it shifts back and forth. My diesels hardly ever downshift.
My Silverado drops down, and revs to 3500-4000+ rpms, empty, not towing, running down the turnpike on rolling hills.