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A bumpy ride

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Old 05-08-2017, 08:31 AM
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Default A bumpy ride

I have noticed on my 2002 Volvo s40 that the ride is quite rough now. I am replacing brake rotors and brake pads and I am wondering what else should I replace.


I am guessing the shock absorbers, but I could be wrong. Anyway, any suggestions appreciated.


Thanks in advance.


Respectfully,




Lou Reed
 
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Old 05-08-2017, 10:36 AM
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The test for shocks and struts is to sharply push down one time on each front corner and rear corner of the car. The car should compress with your push and then rebound one time and stop in the original position. If the car doesn't compress or it bounces more than once then that particular shock/strut is worn out.

Have you ever replaced them before? If your shocks and struts are original then I can almost guarantee they are worn out. They don't normally last 15 years.
 
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Old 05-08-2017, 01:11 PM
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I have replaced them before of course. About seven or eight years ago. I also have seen large springs on various websites to buy shock absorbers. They clearly have something to do with a smooth ride. Are they separate or are they part of the shock absorbers?


Thanks for your input.


Any help appreciated. Thanks in advance.


Respectfully


Newport_j
 
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Old 05-08-2017, 04:31 PM
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I'd also check your tires - is the pressure too high now that its warmer out? Also if the tires are over 5 years old, the rubber may be firming up as well. Regarding the springs, they are a separate issue from the struts/shocks themselves. Generally they don't wear out or firm up but in the case of the S40s they just break off the last 3 inches. Best to inspect each spring front and rear, particularly the ends up to near the spring seats. I've had 3 out of 4 break on my 2000.
 
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Last edited by mt6127; 05-08-2017 at 04:36 PM.
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Old 05-08-2017, 07:14 PM
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The springs hold the weight of the car. The shocks and struts stop the car from bouncing on the springs. That is the reason for the push test. A good working shock should stop the car from bouncing immediately.

Also look for fluid below the bare metal plunger part of the shock/strut. The body of the shock should be dry and not have any oil leaking onto it from above.
 
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Old 05-09-2017, 07:27 AM
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Thanks for your input. I am uncertain as to where to go next. Since, I was replacing the brake rotors and pads, I thought it might be a good idea to look at the shocks and springs also.


Thanks again.


Respectfully,


Newport_j
 
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Old 05-09-2017, 05:51 PM
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I'd concentrate on the rotors and pads and leave the shocks/struts for another time. No need to break the bank doing all the work at once. When your suspension gets that wobbly spongy bounce to it then replace things.
 
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Old 05-09-2017, 10:19 PM
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as a habit, when you are doing the front pads, also inspect the sway bar end links and the sway bar bushings.
 
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Old 08-16-2017, 08:24 AM
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Is it had to replace shocks and springs in a Volvo s40. I have a very reliable mechanic, that can do it in his garage, but even this may be to big a deal to at home.


If it is easy than let us do it. Else, to the commercial garage.


Any help appreciated. Thanks in advance.


Respectfully,


Lou Reed
 
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Old 08-21-2017, 09:44 AM
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I have the same issue.

What I have fixed:
Steering rack and pinion
Tie Rod ends
Links
Sway Bar bushings
brake pads
rotors
new tires
Upper and lower bearings
(Basically anything that could be rebuilt in the front end for suspension I have done including replacing EVERY part that is involved with steering and suspension)
What I have not fixed (YET BUT DOING IT TODAY)
Alignment.

I have found in this car that if your alignment is off just barely you have a bumpy/vibrating ride...
 
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