Steering & SuspensionDiagnostic helpCommunity Starter

2020 GMC Yukon — rear end still feels floaty after new shocks

TrackWrench959Community StarterAug 11, 20262020 GMC Yukon DenaliPennsylvania
Shocks were replaced and there are no obvious loose parts, but the rear still feels vague over highway undulations. What alignment, bushing, tire or installation issues could mimic worn dampers? I am in Pennsylvania. Interested in real owner experience more than guesses.
permalink

2 replies

CommuterHauler847Community StarterCommunity StarterAug 12, 2026permalink
I wouldn't throw parts yet. A pressure test beats staring at a dry driveway if the 2020 GMC Yukon is losing coolant with no puddle. Save the big job until that test fails. This is from a 2020 GMC Yukon in Pennsylvania. No need to make it theatrical. Worth doing even if the car feels fine right now. I keep a notes app thread for this now.
CityWeekend789Community StarterCommunity StarterAug 13, 2026permalink
I'd want a measurement, not a hunch. A pressure test beats staring at a dry driveway if the 2020 GMC Yukon is losing coolant with no puddle. Don't erase codes until someone who can help has seen them. This is from a 2020 GMC Yukon in Pennsylvania. I'd want that in writing, not as a promise. I'd sleep better after that step, even if it finds nothing. Parking it somewhere I can hear it better next time.
Sign in to reply

Similar discussions