2001 Cadillac DeVille Logo
Posted on Nov 21, 2009
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

How do i tell if rear air shocks need replacement?

I have just purchased this vehicle three weeks prior, and while having new brakes installed; the technician said I needed new Air Shocks. I happened to see the shocks while it was on the rack, it had a black plastic sleeve on the bottom of it, the technician pointed to some cracks in this sleeve and stated that my shocks were no good. I ventured “how much will this cost me?” and he stated “about $300, the Dealer will charge you about $1000 for the rear and almost 4K for all of the shocks”. Now I fully understand that anything you buy at the dealer is usually very high in comparison to after market or OEM supplier’s. how do i tell if rear air shocks need replacement?

1 Answer

Anonymous

Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

  • Expert 132 Answers
  • Posted on Nov 21, 2009
Anonymous
Expert
Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

Joined: Apr 30, 2009
Answers
132
Questions
0
Helped
49245
Points
393

CHECK AND MAKE SURE THAT THEY ARE FULL OF AIR AND THEN CHECK THEY FOR THE NEXT FEW DAYS TO SEE IF THEY GO DOWN, AND IF THEY DO THEY ARE LEAKING AND NEED TO BE REPLACED

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

I have a 2005 Cadillac STS that displays "Speed Limited to 80mph" Code reads "left rear actuator"...what is the fix for this??

most likely cause is that the actuator ( sensor) for the air ride shocks is telling the car that the suspension is wrong fo rhigher speeds. the "fix" would be to return to the original air-ride shocks and correct any other modifications made. with computerized systems you cannot just make arbitrary changes without re-programing the computer to accept them( a very costly "if available" option
tip

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.
0helpful
1answer

Rear end went out on 2000 tundra need instructions how to install it

Block the front tires, jack up the rear end. Remove driveshaft from rear end. Loosen but do not remove the leaf springs and the shock absorbers. Remove the brake lines and the emergency brake cable. Return vehicle to ground and finish removing the leaf springs and the shock absorbers. The vehicle will have to be slightly raised to do this. The other option is to replace the ring and pinion as a unit which requires a completely different set of instructions. What will you be doing, replacing the entire axle and housing or just the ring and pinion?
0helpful
1answer

Rear air suspension doesn't inflate everytime vehicle is started

My Buick had this problem and we found the pump was worn out. It just would not blow up when trying to run. They wanted a lot of money to replace it and the shocks.so I bought a kit that the air line hooks underneath the license plate Now about once every three months I use my air compressor to pump it up. My old air shocks lost air all the time. My new air shocks stay blowed up for over three months.
0helpful
2answers

What size coil springs for 2001 lincoln navigator rear supension

That is not a question you ask on the internet,
& no one has any diagrams, unless they own the
same vehicle & have purchased factory manuals

You ask a dealer by giving the parts dept your
VIN #

If your converting from air to conventional suspension,
then you ask the parts suppliers that sell the new parts
your going to use to replace the air shocks/struts
0helpful
1answer

I need to remove the entire passenger side rear suspension. Does it go through the trunk or the back seat? If so how do you remove the back seat?

REMOVAL & INSTALLATION 1983-86 Models
  1. On 4-door sedan, remove the package tray and vent duct.
  2. On hatchback, remove the speaker grilles.
  3. Disconnect the brake line from the wheel cylinder. CAUTION
    Brake fluid contains polyglycol ethers and polyglycols. Avoid contact with the eyes and wash your hands thoroughly after handling brake fluid. If you do get brake fluid in your eyes, flush your eyes with clean, running water for 15 minutes. If eye irritation persists, or if you have taken brake fluid internally, IMMEDIATELY seek medical assistance.
  4. Remove the brake line from the brake hose.
  5. Disconnect the brake hose from its bracket on the shock absorber.
  6. Loosen, but do not remove, the nut holding the suspension support to the shock absorber.
  7. Unbolt the shock absorber from the rear arm.
  8. Unbolt and extract the shock absorber from the body. To install:
  9. Attach the shock absorber to the body and tighten the 3 nuts to 17 ft. lbs. (25 Nm).
  10. Engage the shock absorber bracket with the carrier and install the hardware. Tighten the nuts to 119 ft. lbs. (162 Nm).
  11. Tighten the center suspension support nut to 36 ft. lbs. (49 Nm). There is a bearing located under the suspension support dust cover. Remove the dust cover and pack the bearing with multi-purpose grease. Once packed, reinstall the dust cover.
  12. The remainder of installation is the reverse of removal. Tighten each component to specifications.
  13. Have the rear wheel alignment checked.
1987-88 Models
  1. On wagon models, remove the toneau cover holder.
  2. Loosen the rear wheel lug nuts, raise the rear of the vehicle and support it safely. Block the front wheels.
  3. Remove the rear wheels.
  4. Using the proper size flare nut wrench, disconnect the backing plate hardware.
  5. With a flare nut and a back-up wrench, disconnect the brake tube from the brake hose and use a small plastic container to collect the brake fluid.
  6. Undo the clip and disconnect the brake hose from the shock absorber. NOTE: Before the axle bolts are removed, the axle carrier must be supported with a jack.
  7. Support the axle carrier with a floor jack and remove the mounting bolts and nut. Disconnect the axle carrier from the shock absorber.
  8. Support the shock absorber firmly by hand and remove the three mounting nuts. Remove the shock absorber from the body. To install:
  9. Position the shock absorber onto the body and support it firmly by hand. Install the three nuts and tighten them to 23 ft. lbs. (31 Nm).
  10. Attach the axle carrier to the shock absorber with the nuts and bolts. Tighten the nuts to 166 ft. lbs. (226 Nm).
  11. The remainder of installation is the reverse of removal. Tighten each component to specifications.
  12. Bleed the brake lines as described in Section 9.
  13. Have the rear wheel alignment checked.
1989-96 Models
  1. On the 4-door sedan, remove the package tray and vent duct. On 1992-96 models, it will be necessary to remove the rear seat back.
  2. On the hatchback, remove the speaker grilles.
  3. On the wagon models remove the tonnue cover and rear seat back.
  4. Loosen the rear wheel lug nuts, raise the rear of the vehicle and support it safely. Block the front wheels.
  5. Remove the rear wheels.
  6. Disconnect the brake hose and the ABS speed sensor from the shock absorber.
  7. If equipped with ABS, disconnect the Load Sensing Proportioning Valve (LSPV) spring from the lower arm.
  8. Disconnect the stabilizer bar link from the shock absorber.
  9. Support the rear axle and loosen the 2 bolts from the lower end of the shock absorber.
  10. From inside the vehicle, unbolt the upper support. Fig. 1: A rubber cap covers the rear shock absorber tower nut 89558p01.jpg
    Fig. 2: The upper shock absorber tower is retained by the center nut (circled) and three surrounding nuts 89558p02.jpg

  11. Lower the rear axle carrier and remove the two bolts.
  12. Remove the shock absorber from the vehicle. To install:
  13. Install the shock absorber assembly onto the vehicle.
  14. Connect the brake hose and the ABS speed sensor to the shock absorber.
  15. Connect the stabilizer bar link to the shock absorber.
  16. Install the wheel and tire assembly.
  17. During installation, please observe the following tighten specifications:
    1. Tighten the shock absorber-to-body bolts to 29 ft. lbs. (39 Nm).
    2. Tighten the shock absorber-to-axle carrier nuts to 166 ft. lbs. (226 Nm) on 1988-91 vehicles and 188 ft. lbs. (255 Nm) on 1992-96 vehicles.
    3. Tighten the suspension support-to-shock absorber nut to 36 ft. lbs. (49 Nm) on 1988-91 vehicles. On 1992-96 models, tighten the stabilizer bar link to shock absorber retainers to 47 ft. lbs. (64 Nm).
  18. Install the rear seat back, vent duct and the package tray as required.
prev.gif next.gif
1helpful
1answer

When i hit some uneven pavement, I can hear my back struts, kind of sounding like they need to be oiled. My check air suspension light came on, and stayed on for about an hour. It has not been on since. ...

there is a couple of questions that actually need answers prior to a diagnosis such as one of them is do you ever turn your vehicle off and still here your compressor come on to prime your ar bags if so i would recomend replacment of the air bags on the rear your vehicle has shocks on the rear not struts the air suspension is a seperate unit on this vehicle it doesnt have air shocks but shocks and air bags over extending air bags can blow them and cause small leaks if you do not hear the compressor coming on check you rear sway bar you might need rear sway barr links or bushing which is not a huge repair expense and also sometime what you might think is comeing from the rear of your vehicle might actually be comeing from the front have your swaybar in the from checked as well
4helpful
1answer

Remove rear brake drum 2004 Mitsubishi Outlander

Dear Brake Drum Remover,
I'm gonna tell you how to pull this drum off, ya ready?First off, get the rear of the vehicle up in the air safely, Then pull the rear tires off.After those are off then take a gander at the face of the drums, are there shiny brass looking screws installed on the face of that drum?Ifso remove those counterclockwise, then, take a hammer a shock the face off the drum firmly about three times.Now, go to the opposite side on the face of the drum and do that again, keep on doin that until you can wiggle the drum off by hand...easy as that, any other questions get back to me. I'M HERE TO HELP!!!
0helpful
1answer

Message on dash 96 deville service traction control

check the brake fluid and make sure caliber is full of fluid. mine said that and it was because fluid was low.
0helpful
1answer

I need step by step instructions to replace front struts.

1.Turn ignition to OFF position to place steering column in unlocked position.
2.Remove hub nut
3.Loosen, but do not remove, three top mount-to-shock tower
4.Raise vehicle on a hoist.
5.Remove tire and wheel assembly
6.Move brake caliper and wire out of the way
7.Remove brake rotor
8.Remove cotter pin from tie rod end stud and remove slotted nut.
Discard cotter pin and nut
9.remove tie rod from knuckle
10.Remove stabilizer bar link nut, and remove link from strut
11.Remove and discard lower arm-to-steering knuckle pinch bolt and nut. (A drift punch may be used to remove bolt.) Using a screwdriver, slightly spread knuckle-to-lower arm pinch joint and remove lower arm from steering knuckle.
12.Press halfshaft from hub
13.Remove shock absorber strut-to-steering knuckle pinch bolt. Using a large screwdriver, slightly spread knuckle-to-strut pinch joint, if required, for removal
14.Remove steering knuckle and hub assembly from shock absorber strut
15.Remove three top mount-to-shock tower nuts and remove strut and spring assembly from vehicle
16.Compress spring with Spring Compressor
17.Place 10mm box-end wrench on top of shock strut shaft and hold while removing top shaft retaining nut with a 21mm 6-point crow foot wrench and ratchet
18.Loosen Spring Compressor , then remove top mount bracket assembly, bearing plate assembly and spring.
INSTALLATION
1.Place a 10mm box-end wrench on top of shock strut shaft and hold while tightening top shaft retaining nut with a 21mm 6-point crow foot wrench and ratchet to 53-72 Nm (40-53 lb-ft).
2.Install strut and spring assembly and three top mount-to-shock tower nuts
3.Install steering knuckle and hub assembly to shock absorber strut.
4.Install a new shock absorber strut-to-steering knuckle pinch bolt. Tighten to 98-132 Nm (73-97 lb-ft).
5.Install halfshaft into hub
6.Install lower arm to steering knuckle ensuring that ball stud groove is properly positioned and boot seal is not damaged. Install a new pinch bolt and nut. Tighten to 53-72 Nm (40-53 lb-ft).
7.Install stabilizer bar link to strut and install a new stabilizer bar link nut. Tighten to 77-103 Nm (57-75 lb-ft).
8.Install tie rod end onto knuckle.
9.Install a new tie rod end slotted nut. Tighten to 31-47Nm (23-34 lb-ft).
10.Install a new slotted nut retaining cotter pin.
11.Install brake rotor
12.Install brake caliper
13.Install tire and wheel assembly
14.Tighten three top mount-to-shock tower nuts to 30-40Nm (23-29 lb-ft).
15.Lower vehicle and tighten hub nut to 230-275 Nm (170-202 lb-ft)
16.Depress brake pedal several times prior to moving vehicle.

Hope this helps. Good luck !
Not finding what you are looking for?

418 views

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Sean Wright
Sean Wright

Level 3 Expert

2045 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...