Question about Jaguar XJ8

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Rear bushes making knocking sound when driving was told whole suspension had to be lowered at great cost.could you tell me if this is true.also sometimes wont start have put oil down plug holes then starts engine only done 73000mls any views on the matter. regards gary

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  • tuckertb Jan 31, 2009

    rear suspension bushes replacment

  • yadayada
    yadayada May 11, 2010

    Bushes, like in the yard??

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  • Master
  • 962 Answers

The fact that you have to put oil in the cylinders indicates there is little compression. The bushings are knocking also . you will have to overhaul the engine. Or rebuild it.

Posted on Dec 05, 2008

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the way you wrote this reminded me of a fellow that just got a brand new van and brought it to me in a fluster one day saying it makes horrible banging noises only when he drives it <not sitting still, I pulled it into service bay and put up on rack , when I took hubcaps off to access the wheels I nearly laughed to death !!! seems his Not so funny neighbor had added a handful of gravel to the inside of his hubcaps for a bit of fun with him !!!

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See if you can bounce car and replicate the noise. If you can, you should be able to find it, and put your hand on it. Stabilizer bushing are a place to look, both at the lower a arm and on the frame. If you narrow it down to the strut, it will need to be replaced. The front trans mount also goes bad, try putting it in drive with your foot on the brake and give it some gas and see if the engine moves an excessive amount.

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Check the bottom Y shaped arm which holds the wheel steady not allowing it to move back or front. Once this play becomes more than half an inch, this starts making knocking sounds as if somebody is tapping on the chassis. This Y shaped arm has both arms attached to the chassis, each having a metal covered rubber bush. Change both bushes and the sound will vanish......................sodeep

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the best thing to do is bring it to a local shop
i dont know what it is like where you are but at my shop it doesnt cost anything to see what a problem is. anything is usually replaceable and if it is a bushing in the suspension it is probably a trailing arm or a lateral link "i think that is the real part name" they are not expensive. phone a couple of garages and ask them if there is a cost to find the problem

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I need to know how to get to the rear suspension (tower)


i don't think you have to do any repairs from the top end. I will list most fromFord shop manual. Please rate as Fixya if this answers your questions. Please report back. Good luck.

Section 04-02: Suspension and Wheel Hubs, Rear 1994 Town Car, Crown Victoria/Grand Marquis. Workshop Manual
REMOVAL AND INSTALLATION Spring Rear
Removal
  1. Position a hoist under the rear axle housing, and raise the vehicle. Refer to Section 00-02 . Place jackstands under frame side rails.
  1. Remove rear stabilizer bar as outlined.
  1. Disconnect the lower studs of the two shock absorbers from the mounting brackets on the rear axle assembly .
  1. Unsnap the RH parking brake rear cable and conduit (2A635) from RH upper arm retainer before lowering the rear axle assembly .
  1. Lower the hoist and axle housing until the rear springs are released.
  1. Remove rear spring and rear spring center mounting insulators (5741) from vehicle.
    -----------------------------------------------------------------
Shock Absorber Removal
Raise the vehicle on a hoist. 1. To assist in removing the upper attachment on shock absorbers using a plastic dust tube, place an open end wrench on the hex stamped into the dust tube's metal cap. For shock absorbers with a steel dust tube, simply grasp the tube to prevent stud rotation when loosening the retaining nut.
  1. Remove the shock absorber retaining nut, washer, and insulator assembly from the stud on the upper side of the frame. Discard nut. Compress the shock absorber to clear the hole in the frame, and remove the inner insulator and washer from the upper retaining stud.
  2. Remove the self-locking retaining nut, and disconnect the shock absorber lower stud from the mounting bracket on the rear axle tube.
  3. Perform Shock Absorber Checks. Refer to Section 04-00 to determine shock absorbers performance.
Installation
  1. Properly prime the new shock absorber . Refer to Section 04-00 , Shock Absorber Checks.
  1. Place the inner washer and rear spring insulator (5536) on the upper retaining stud, and position the shock absorber so that the upper retaining stud enters the hole in the frame. While holding the shock absorber in this position, install a new rear spring insulator , washer and nut assembly on the upper side of the upper frame. Be sure to seat the rear spring insulator in the frame attaching hole. Tighten nut to 34-46 Nm (25-34 lb-ft).
  1. Extend the shock absorber , and place the lower stud in the mounting bracket hole on the rear axle assembly housing. Install a new self-locking retaining nut. Tighten nut to 76.5-103.5 Nm (56-76 lb-ft).
  1. Lower vehicle.
-----------------------------------------------------------------------------
Arm Lower
Removal
Refer to the illustration in Description and Operation. NOTE: To improve rear axle assembly noise and vibration concerns, the rear suspension should be fastened to the frame and rear axle assembly at the curb height position.
NOTE: If one rear suspension lower arm requires replacement, also replace the opposite rear suspension lower arm .
sra~us~en~file=ani_caut.gif~gen~ref.gif WARNING: TURN REAR SUSPENSION LEVELER COMPRESSOR SWITCH OFF (IF SO EQUIPPED).
NOTE: If both rear suspension arm and bushings and both rear suspension lower arms are to be removed at the same time, remove both rear springs as outlined under Rear Spring Removal. For air spring removal, refer to Section 04-05 .
  1. Mark rear suspension shock absorber relative to protective sleeve with the vehicle in a static, level ground condition.
  1. Remove rear stabilizer bar as outlined.
  1. Raise the vehicle on a hoist, and place jackstands under the rear axle assembly . Refer to Section 00-02 .
  1. Lower the hoist until the shock absorbers are fully extended to relieve rear spring pressure.
  1. Support rear axle assembly under differential pinion nose as well as under rear axle assembly .
  1. Remove and discard the lower arm pivot bolt and nut from the axle bracket. Then, disengage the rear suspension lower arm from the bracket.
  1. Remove and discard the pivot bolt and nut from the frame bracket, and remove the rear suspension lower arm .
-----------------------------------------------------------------
Upper
Removal
SPECIAL SERVICE TOOL(S) REQUIRED Description Tool Number Suspension Bushing Service Set T79P-5638-A1, A2 and A5 Rear Axle Control Arm Bushing Tools T86P-5638-AH
sra~us~en~file=ani_caut.gif~gen~ref.gif WARNING: TURN OFF REAR SUSPENSION LEVELER COMPRESSOR SWITCH (IF SO EQUIPPED).
  1. Raise the vehicle, and support the frame side rails with jackstands. Refer to Section 00-02 .
  2. Support the rear axle assembly .
  3. Lower the rear axle assembly , and support the rear axle assembly under differential pinion nose as well as under rear axle assembly .
  4. Unsnap parking brake rear cable and conduit from upper arm retainer.
  5. Remove and discard the nut and bolt retaining the rear suspension arm and bushing to the rear axle assembly housing. Disconnect the rear suspension arm and bushing from the housing.
  6. Remove and discard the nut and bolt that secures the rear suspension arm and bushing to the frame bracket, and remove the rear suspension arm and bushing . If upper arm rear bushing is to be replaced, use Suspension Bushing Service Set T79P-5638-A and Rear Axle Control Arm Bushing Tools T86P-5638-AH and the following procedure:
  7. Place the upper arm rear bushing remover tool in position, and pull bushing out. Using Suspension Bushing Service Set T79P-5638-A install bushing assembly into bushing ear of rear axle assembly.
------------------------------------------------
Stabilizer Bar
sra~us~en~file=ani_caut.gif~gen~ref.gif WARNING: TURN OFF REAR SUSPENSION LEVELER COMPRESSOR SWITCH (IF SO EQUIPPED).
Removal
  1. Raise vehicle on hoist, and place jackstands under the frame side rails. Refer to Section 00-02 .
  1. Lower the hoist and rear axle assembly housing until the shock absorbers are fully extended.
  1. Disconnect rear stabilizer bars from rear stabilizer bar link and bushing (5C488) . Remove bolts and stabilizer bar bracket (5486) retaining rear stabilizer bar to rear axle assembly .

Mar 05, 2009 | 1994 Lincoln Town Car

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