An automotive suspension shock absorber is a normal maintenance item which requires
replacement at regular intervals and can wear prematurely due to road conditions.
There are many options when choosing a replacement shock or strut, its recommended
to use top quality replacement parts to avoid premature failure. Most high grade
shocks are gas filled to further improve the vehicle ride characteristics. When
a shock absorber fails, a vehicle will continue to oscillate up and down after hitting
Let's Jump In!
Step 1 - Before removing a shock absorber its important
to know that a shock limits the downward travel of the suspension. Start by relieving
the tension of the suspension by positioning a jack under the lower ball joint or
control arm while raising the jack upward slightly. Not performing this step can
make shock replacement difficult as the weight of the suspension can hold the mounting
bolts from being removed.
Step 2 - Once the suspension tension has been relieved,
remove the lower shock mounting bolt.
Step 3 - A plastic hammer or block of wood and a regular
hammer can help push the bolt through if it can't be removed by hand.
Step 4 - Use WD40 or equivalent to lubricate the shock
top mounting nut.
Step 5 - Slide a normal wrench over the top of the shock
stud and place it securely onto the mounting nut.
Step 6 - Adjust a crescent wrench to hold the top of
the shock stud to prevent the shaft from turning while using the wrench.
Watch the Video!
Please watch this video of the job being done, then continue down the guide to
glean additional helpful information.
Step 7 - While holding the shock shaft with the crescent
wrench, turn the nut counterclockwise to loosen.
Step 8 - Once all mounting nuts and bolts have been removed,
grasp the shock and remove it from the suspension.
Step 9 - After the shock has been removed, match
the old shock to the new unit to ensure a proper installation. Confirm the top insulator
(bushing) is installed correctly.
Step 10 - After the new shock has been matched
to the old unit, gently install the new shock into the upper mounting bracket while
confirming the upper isolator position.
Step 11 - While holding the shock in place, install
the lower mounting bolt into place.
Step 12 - Once installed, use a wrench to hold
the nut tight while turning the bolt clockwise until tight.
Step 13 - After the shock is positioned, install
the upper part of the shock insulator set. This step is important for the shock
to operate without abnormal noises, ie. popping, rattling and banging.
Step 14 - When installing the upper nut, avoid
cross threading by winding the nut on by hand.
Step 15 - Use a crescent wrench to hold the shaft
from turning while tightening the upper mounting nut. ( Note: This nut needs to
be fairly tight to load the insulator correctly.)
Step 16 - After all mounting bolts and nuts are
tight, lower the hydraulic jack.
Step 17 - Anytime oil is leaking from a shock or
strut it has failed and replacement is required.
Our certified technicians are ready to answer shock
absorber questions for free. We hope you saved money and learned from this guide.
We are creating a full set of car repair guides. Please
subscribe to our 2CarPros YouTube
channel and check back often for new videos which are uploaded regularly.