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2000 STS Suspension has become excessively soft

2K views 23 replies 7 participants last post by  gpmroy 
#1 ·
My Suspension is excessively soft, as if it requires new shocks?? When I go over a swale in the road the car feels like it bottoms out and continues to bounce for a few seconds.

There have been no codes displayed.

Roy.
 
#3 ·
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worn out shocks and struts will not set codes -
failed electronics within the shocks and struts could -

if you want to retain the STS electronic suspension -
front struts -
Monroe 40021 - $368.25 -
and
40022 - $422.92 -

rear shocks -
Monroe 40029 - $355.70 with coupon code SAVE15 - including shipping -
http://www.partsgeek.com/cxjbgqc-cadillac-deville-shock-absorber.html?fp=pp
and
Monroe 40030 - $433.73 - listed as "call for availability" -
http://www.myautopartswholesale.com/searchitem.epc?lookfor=40030

----------------

if you want to save a ton of money - and go to a passive suspension -
similar to the SLS Seville -

front struts -
Monroe 71684 - $57.90 - each - with free shipping -
http://www.amazon.com/gp/product/B000C53TGA/?ie=UTF8&me=A1ATZ3MAARQNEF

rear shocks -
Monroe MA822 - $58.25 - for the pair - with shipping -
http://www.partsgeek.com/32syvb4-buick-lesabre-shock-absorber.html
------------

so - $1590 for active -

or $175 for passive -

this is just for the parts -
but labor would be the same for either active or passive -

I recommend the passive route -
 
#5 ·
If I decide to go with the Passive route, what happens to all the electronics that will no longer be used???

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I did pull them there were no RSS codes
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If I decide to go with the Passive route,
what happens to all the electronics that will no longer be used?

basically nothing -

except -

there IS one thing that needs to be done to prevent DIC messages -
simply install a 4.7K ohm resistor
where the each of the struts and shocks used to plug in -
 
#11 · (Edited)
4.7 K Ohm - 4,700 Ohms, not 4.7.

One for each strut/shock.

You insert the leads into the chassis wiring harness connector the same as sticking a bent paper clip into a wall socket. Double each lead back on itself for better contact surface, tape over the mess and insulate/waterproof well with a blob of silicone household sealant.

Some owners like to cut the strut/shock wiring connector off the pigtail and solder the resistor across the two (bared) wires - but that destroys the pigtails for future use if you decide to return the passive suspension to its former active road handling type.
 
#24 ·
Thanks for the help, I now have the Strut installed, I was not aware that the Control Arm had to be forced downward with a pry bar, once I did that the bolts went in just fine. The car goes in for the Wheel Alignment tomorrow.

Thanks to all that responded to my problem.
 
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