Forum Discussion

opnspaces's avatar
opnspaces
Navigator III
Jan 07, 2020

UPDATED Coast on the uphills accelerate on the downhills

Link to the update Jan 17 2021 I learned something new after 14 years of towing the same trailer. I took my first trip in the new to me 2001 Suburban pulling my 5,600 lb trailer. My older Suburban...
dodge_guy's avatar
dodge_guy
Explorer II
Jan 07, 2020
Sounds like the axle ratio isn't suited for towing. It shouldn’t climb like that on moderate hills. Either the engine was lugging (wrong gear) or as you say you weren’t pushing it hard enough for the trans to kick down. I believe GM transmission lock up in 2nd.

About RV Tips & Tricks

Looking for advice before your next adventure? Look no further.25,178 PostsLatest Activity: Dec 20, 2025