Suspension, Brakes and Tires Discussion, 2000 STS Rough Ride/Resistance in Item Specific Cadillac Discussion; Hello, fellow Caddy fans... I've got a 2000 STS that I love dearly. It is my daily driver, but being ...
- 05-21-14 08:11 PM #1Cadillac Owners Member
- Join Date
- Jan 2013
2000 STS Rough Ride/Resistance
Hello, fellow Caddy fans...
I've got a 2000 STS that I love dearly. It is my daily driver, but being 15 years old, it's getting a bit delicate.
Lately (past few months) I've noticed a ride issue that seems to directly correspond with the wheel speed. When rolling on a smoothe, level surface, it feels (& sounds) like I'm rolling on knobby, all-terrain tires. Beyond that, the car seems to be battling some rolling resistance. It's hard to quantify, but I can tell that something is impeding my car's ability to coast freely.
My tires are not a matching set, but they are the correct size, and I've been keeping the air pressure consistent.
I don't believe it's a transmission issue, because the fluid is clean, not "burnt," and the issue exists even when rolling in neutral.
It just feels like I'm riding on off-road tires. I'm a little puzzled. Due to budget constraints, I'm doing all I can to diagnose/repair as much as I can on my own.
Has anybody else out there experienced this issue? Any thoughts?
- 05-21-14 08:27 PM #2
Does it sound line the tires are growling? Wheel bearings make that sound when they fail. Does the sound change as you turn at speed?
- 05-21-14 09:35 PM #3
MoistCabbage, yes, it seems to diminish when turning to the right. Would that indicate a suspect bearing on the left?
- 05-21-14 09:44 PM #4
Actually, it would point to a bearing on the (front) right. When you turn right, the weight transfers to the left, and the right bearing is unloaded.
- 05-21-14 10:03 PM #5
You're correct. Maybe I'm still getting "left & right" figured out! Heh heh heh...
I just researched swapping the hub assembly, and it doesn't look too difficult. Have you ever done it? Any tricky spots to consider?
- 05-23-14 05:21 PM #6
Re: 2000 STS Rough Ride/Resistance
get the car off the ground -
hold the wheel/tire at 12:00 and 6:00 positions - (top and bottom_ -
gently wiggle it - ANY movement at all indicates worn bearings -
nothing "tricky" about it -
EXCEPT that they might be rusted in place -
be sure to only use TIMKEN or ACDELCO hubs -
or you WILL be replacing them again - soon -