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XC90 remove rear strut

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo XC90s. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America).
Pretribrapper
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Pretribrapper

XC90 remove rear strut

Post by Pretribrapper » Sun Jun 30, 2019 5:32 pm

Doing my rear struts on the XC90. It is a 2011 V8. I am completely stuck. I could not get the nut to come lose on top inside the vehicle. I did get it to turn but the whole assembly turns I dont have a deep enough pass thru socket to be able to get a star key up top to try to hold the piston and break the nut free. I also dont have a tool to cut off the nut that is small enough to get I to the access hole. Any ideas on what to use? If it has to be cut is that a bad idea since passenger side seems to be near fuel tank door... I am new to the rear strut removal but there has to be a simpler way to get this out. The bottom bolts come out fine just the top ones have an issue. Please help. See attached pic. Thx
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MoVolvos
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MoVolvos

Re: XC90 remove rear strut

Post by MoVolvos » Sun Jun 30, 2019 6:06 pm

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If the shock cover is plastic you could potentially cut it and put a pair of vise grips on the piston and use a socket on top. Before that lubricate and let it sit for a day. It you have a torch heat it first then lubricate after it cools. Regardless you'll need something to hold the shock piston from below if you can't use the Torx on top.

https://www.volvopartswebstore.com/show ... veLine=509


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2011 XC90 V8 Shocks.png
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Blessings,

BKM

1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion

Masscomguru
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Masscomguru

Re: XC90 remove rear strut

Post by Masscomguru » Sun Jun 30, 2019 6:46 pm

You could try holding the socket externally with a pair of vice grips and get the Allen wrench through the top.
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Pretribrapper



wanderdüne
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wanderdüne

Re: XC90 remove rear strut

Post by wanderdüne » Mon Jul 01, 2019 9:06 am

This is my thread from when I did this:
https://forums.swedespeed.com/showthrea ... Experience
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Pretribrapper



Pretribrapper
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Pretribrapper

Re: XC90 remove rear strut

Post by Pretribrapper » Sat Jul 06, 2019 7:00 am

So far I got the plastic cut and the bottom bolt removed but I cant do anything the grab the piston. I tried vise grips and the piston just turns inside the vise grips, I tried an 8" and 10" monkey wrench and they don't grab the piston and I am unable to get my grinder in between the spring coils to cut notches. Any other ideas on how to hold the piston so I can get the nut to turn up top?
Thanks for all of your help.



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MoVolvos
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MoVolvos

Re: XC90 remove rear strut

Post by MoVolvos » Sat Jul 06, 2019 9:25 am

Pretribrapper wrote: ↑
Sat Jul 06, 2019 7:00 am
So far I got the plastic cut and the bottom bolt removed but I cant do anything the grab the piston. I tried vise grips and the piston just turns inside the vise grips, I tried an 8" and 10" monkey wrench and they don't grab the piston and I am unable to get my grinder in between the spring coils to cut notches. Any other ideas on how to hold the piston so I can get the nut to turn up top?
Thanks for all of your help.
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Try wrapping it with sand paper and then vise grip from the bottom. Double fold so paper is on both sides, wrench and piston. If possible from the top grind away one side of the nut?


Blessings,

BKM

1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion

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SuperHerman
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SuperHerman

Re: XC90 remove rear strut

Post by SuperHerman » Sat Jul 06, 2019 1:23 pm

I did mine with a vice grip on top and a box wrench with offset. All from above.

As you are replacing the unit - ruining the original is not an issue. Have you tried using air? Tighten your vice grip more - maybe use two vice grips - and try air again with the vice grips if you have it.



Pretribrapper
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Pretribrapper

Re: XC90 remove rear strut

Post by Pretribrapper » Tue Jul 09, 2019 8:29 am

UPDATE- Finally got everything done. Ended up using a dremel-type rotary tool from harbor freight with 1" reinforced cutoff wheels. (Lots of them)
I was able to sheer of the nut from the top but it took a LONG TIME. all done. all better. Turns out it was my left rear strut that was the bad one. I have never seen this before but when I would go to compress the rebound was super pressurized. (Like a pogo stick) I thought they usually lose rebound when they are going bad. Also was leaking a lot of fluid when I removed. Thanks again for all your input. Greatly appreciated.



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MoVolvos
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MoVolvos

Re: XC90 remove rear strut

Post by MoVolvos » Tue Jul 09, 2019 10:10 pm

Pretribrapper wrote: ↑
Tue Jul 09, 2019 8:29 am
UPDATE- Finally got everything done. Ended up using a dremel-type rotary tool from harbor freight with 1" reinforced cutoff wheels. (Lots of them)
I was able to sheer of the nut from the top but it took a LONG TIME. all done. all better.
-
Good news! So did you smooth/ground the nut completely flat? Was there room to cut the edge of the nut... Take that back, the radius of the wheel would have cut the chassis / strut tower if you'd have tried to cut it downward to remove one side of the nut. A picture next time?


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BKM

1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion

Pretribrapper
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Pretribrapper

Re: XC90 remove rear strut

Post by Pretribrapper » Thu Jul 11, 2019 6:05 pm

So sorry. Attached are pics of end result for removed strut and tools. I was able to use 1" reinforced cutoff wheel on rotary tool to go straight in and cut around the nut to sheer it off and the strut then dropped out.
20190711_185650.jpg
20190711_185716.jpg
20190711_185635.jpg
20190711_185645.jpg
20190711_185812.jpg
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