Question about 1999 Cadillac DeVille

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Need new struts on rear, Would like to replace with air shocks. Any suggestions on how I would do this?

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Shock Absorber -The rear already has air shocks on the 1999 Cadillac Deville: REMOVAL & INSTALLATION Rear

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Remove or disconnect the following:
    • Rear wheel Fig. 1: Exploded view of the rear shock absorber mounting Need new struts on rear, - 9300vg06.gif

    • Negative battery cable
    • Shock absorber electrical connector from the rear suspension support, If equipped
  3. Support the lower control arm with a jack to relieve the tension on the shock absorber.
  4. Remove or disconnect the following:
    • Lower shock absorber mounting bolt and nut
    • Upper mounting nut, retainer, and insulator
    • Shock absorber compress by hand and remove through the upper control arm
    To install:
  5. Position the top of the shock absorber with the insulator attached into the suspension support.
  6. Install or connect the following:
    • Upper shock insulator, retainer and nut. Torque the nut to 55 ft. lbs. (74 Nm).
    • Shock absorber lower mounting nut/bolt. Torque the nut to 75 ft. lbs. (102 Nm).
    • Shock absorber electrical connector to the rear suspension support, if equipped
    • Rear wheel
    • Negative battery cable
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Posted on Jul 29, 2010

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When should I replace my shocks and or struts When a vehicle is brought into an...


When should I replace my shocks and or struts
When a vehicle is brought into an auto repair shop for routine vehicle maintenance, the auto technician may suggest that the vehicle shocks or struts need to be replaced. Learn the function of a car or trucks shocks and struts. Find out why the shocks and struts need to be replaced and how someone can tell if they’re bad.

The Purpose or Function of a Cars Shocks and Struts

Shocks and struts serve the same purpose. They’re main function is to keep the vehicle from bouncing. A vehicle has front and rear springs to cushion the vehicle over rough road conditions. If there were no shocks or struts the vehicle would continue to bounce excessively. The shocks and struts prevent the car from bouncing by damping the springs.

What’s the Difference Between Shocks and Struts?

Shocks are usually used to dampen leaf springs, where as a strut is used to dampen coil springs. Shocks are usually a single cylinder in the open where as a strut is normally surrounded by the coil spring and are more massive and complicated.

That’s why struts normally cost a lot more to replace than a shock. On a car the front suspension usually has struts and the rear usually has shocks. Some trucks have shocks on the front and rear. Other than those distinctions, shocks and struts serve exactly the same purpose.

Why Should the Cars Shocks or Struts be replaced?

Keeping in mind that the purpose of shocks and struts is to keep the vehicle from bouncing, the following is some of the reasons why they should be replaced.

* An excessively bouncing car can be an uncomfortable driving experience.
* The vehicle can be harder to control leading to an unsafe condition.
* Excessive strain can be put on other vehicle components causing premature failure.
* Bad shocks or struts will cause the tires to bounce and create spotty or choppy wear on the vehicles tires.

How to Tell if a Cars Shocks or Struts are Bad

1. Shocks and struts can be oil or air filled. If they are leaking oil or air they need to be replaced. Consumer beware, some dishonest auto repair shops will squirt oil on the shocks, show the customer the leaky shocks and tell them they need to be replaced.
2. Another method is the bounce test. Put all your weight on the front or rear of the vehicle and push down on the vehicle. Let go of the vehicle and stand back to see of it bounces. If the vehicle comes back up without bouncing, the shocks are probably in good shape. If the vehicle bounces a few times, chances are the shocks or struts need to be replaced.

Shocks and struts are wear items, not maintenance items. There’s no set mileage or time limit when they should be replaced. If the tires seem to have a choppy wear pattern or the vehicle bounces excessively over bumps, the shocks need to be checked.

Look at the struts or shocks and see if they’re leaking. Perform the bounce test and see if the vehicle bounces. Replacing the vehicle shocks and struts when they’re bad will create a safer and more comfortable driving experience, not to mention saving money in the long run.

on Dec 14, 2009 | Honda Accord Cars & Trucks

2 Answers

Where do I find air shocks or air struts for my 90 Buick riviera and which one do I have I'm so confused


i'm not sure that you have "air " shocks or struts , follow this link to an automotive parts site , put in your vehicle details and it will show exactly the type of suspension components you require
Replacement Parts Car Parts and Truck Parts

Mar 30, 2015 | Buick Cars & Trucks

1 Answer

How to replace rear air shock on 1992 buick parkavenue


Pretty sure your car has struts on the rear and the shock function is part of the strut. Replacing struts is more difficult than replacing shocks and they should be replaced in pairs.

Mar 17, 2014 | 1992 Buick Park Avenue

1 Answer

How do I chnage the front and rear shocks in a 2001 4.0


The shocks in the rear just unbolt top and bottom, disconnect the air line and replace them.

Struts are used in the front. You'll need to remove them and then have a spring compressor to change the struts. An alignment check is recommended after the struts are replaced.

Mar 31, 2012 | 2001 Oldsmobile Aurora

2 Answers

Excessive bounce of rear end.


Actually, these are struts, and you need two new ones. You do not have an air suspension unless someone added one.

You will need a spring compressor to replace. The replacement struts can be bought for around $200 (ea) fully assembled, you can but the strut only (without springs or mounts) and take it and the old strut to a shop ($15.00 a strut to change spring and mount), or you can have them do the whole thing.

Apr 05, 2010 | 1999 Oldsmobile Intrigue

1 Answer

I need shocks, they have never been replaced in 107K miles. Does this car have 4 shocks or 2 shocks and 2 struts


Thr front will be MacPherson struts, a shock absorber surrounded by a coil spring looking set-up.


FOR THE REAR:
If you have front wheel drive and you have Electronic Ride Control (ERC), then the rear suspension has "super lift air shocks".

If you have all wheel drive, then you have struts in the rear suspension.

Does help any?

Oct 26, 2009 | 1993 Oldsmobile Cutlass Ciera

2 Answers

Eliminate air ride


I have the same car, and not could not find non-air struts for the rear end....ended up replacing the air struts and the air pump....Good Luck.

Jan 22, 2009 | 1991 Buick Park Avenue

1 Answer

Shocks or struts for front driver & passanger


The front has struts and the rear has shocks. I used Volvo OEMs. The rears are VERY easy to do yourself. The upper mounts are located behind the rear doors in the trunk area. It takes 15 minutes each to replace the rears.

The fronts are not difficult to remove if you have an air wrench + 6 sided socket, and a special star socket (14mm I think). You can find detailed instructions online. Once the front struts are out of the vehicle, you'll need to compress the springs before taking them apart. I did one myself using loaner spring compressors from Advanced Auto. I brought the second one into my local muffler shop because they have an industrial spring compressor. Make sure that you have a ride available to the nearest Volvo Parts dealer because once you get the struts apart, you'll probably need to replace the rubber bearing assembly in the strut that rotates when the wheel turns. There is also a rubber sleve that surrounds the strut to keep dirt out. The metal mount for his corrodes. The struts are a very important part of your steering, so if you do the fronts use care. Also, be aware that you'll probably be purchasing alot more parts than just the piston for the fronts. Suggest that you price it all out before proceeding.

Jul 30, 2008 | 2000 Volvo S80

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