Loose Front (Rear?) end - Chevy Impala SS Forum
 
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post #1 of 3 (permalink) Old 09-25-2004, 04:02 PM
FireDeptBoxy
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Ok, Im not the sharpest tool when it comes to suspension, but something is way off on my car.

Ive spent about an hour looking at old posts, have looked at my car, and ive come up with nothing.

Problems: The car is somewhat floaty on the road. The car has what airplanes call 'yaw' or a sidewaysish (sp) travel when im driving down the road. The car wanders while driving and requires constant correction.

Solution?: Reading these posts, id like to get the monroe SS shocks, and some bushings, but im concerned about the other suspension parts on the car, such as the control arms.
1) car is not overloaded

2) Im not sure about the alignment, but the wandering is not constant. In otherwords, it drives straight, then gradually and gently deviates from course, requiring frequent corrections.

3)Springs?
At one time for my MA thesis, I has 400lbs of wood in the trunk for a week. May have damaged the springs

4) wheel bearings?
Who knows. I havent messed with them.

5) steering linkage?
See#4

Car has low miles (77k) and im now starting to drive it daily. the ride quality of the suspension has degenerated to a point where it needs attention.

I am working alot lately, and while I have some free time on the weekends, these hurricanes in florida are really chewing up my weekends. What is the best route for me to diagnose and fix this problem? I dont need a problem to creep up on my way to work.

Thanks

Scott.
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post #2 of 3 (permalink) Old 09-25-2004, 04:51 PM
roady94
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-You will need to provide more info, but for a start:

Are you certain the car exhibits "yaw", or is this just an assumption? Has someone followed you and noticed the yaw, or "dog-tracking" - back end not following tracks of front end.

Did the beginning of the problem coincide with the 400lbs of wood event?

Does it always wander to one side, and have you eliminated road-crown as a contributing factor?

Are you the only driver of this vehicle?

Have you jacked the front wheels off the ground and checked for "play" in the steering or suspension? Try to wiggle the wheel/tire with hands on top and bottom, as well as front and back. Looseness here could indicate worn steering linkage components, ball joints or wheel bearings.

400 pounds of wood in the trunk for a week will not hurt the springs or suspension at all - unless driving style or terrain conditions were excessive enough to compromise the suspension.

You can get a lot closer to a diagnosis with a jack and about 1/2 hour in the driveway.

-Jay
post #3 of 3 (permalink) Old 09-25-2004, 05:50 PM
FireDeptBoxy
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Quote:
Originally posted by roady94:
-You will need to provide more info, but for a start:

Are you certain the car exhibits "yaw", or is this just an assumption? Has someone followed you and noticed the yaw, or "dog-tracking" - back end not following tracks of front end.
its an assumption. I have not verified this with a driver to the rear.
For simplicity's sake, lets just say that the car wanders. In other words the car needs corrections to drive straight. This problem is exacerbated with increased speed.
Also, the suspension is much softer. There is more body roll as well.

Quote:
Did the beginning of the problem coincide with the 400lbs of wood event?
Not really. This car did some sitting before I got it two years ago, and sat most of the time ive owned it untill recently. The car has been driven on the highways on the weekends from gainesville to orlando, or about a 2 hour trip.

Quote:
Does it always wander to one side, and have you eliminated road-crown as a contributing factor?
Definately not road crown. This problem is definately new, getting worse, and not road crown.

Quote:
Are you the only driver of this vehicle?
Yes

Quote:
Have you jacked the front wheels off the ground and checked for "play" in the steering or suspension? Try to wiggle the wheel/tire with hands on top and bottom, as well as front and back. Looseness here could indicate worn steering linkage components, ball joints or wheel bearings.
As soon as this hurricane goes away, its one of the first things I plan on doing. I have a hydraulic jack and two jackstands ready to check for the ball joints and center linkage.

Quote:
400 pounds of wood in the trunk for a week will not hurt the springs or suspension at all - unless driving style or terrain conditions were excessive enough to compromise the suspension.
Thats good to know. Im glad the 9c1 suspension was good for that weight.
Quote:
You can get a lot closer to a diagnosis with a jack and about 1/2 hour in the driveway.
I'm reading up on the proper things to check right now. I'd really like to check this problem and get it over with.
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