Spent most of my free time this weekend working on a 2002 Chrysler Concorde Limited. Now, normally, a 4 wheel strut job is not an issue to do, however, Chrysler engineers have some really stupid ideas when it comes to suspension design, and how things should or should not be assembled/packaged. Also, Monroe as far as quality control is probably the worst I have ever seen for struts.
This project had to be spanned over two days as some of the part's conditions were unknown until dis-assembly, so had to be ordered after things were torn down.
Here is my beef with the front end: Normally, FWD cars use a steering arm tie rod off the spindle therefore tie rod removal is not required to replace a strut, not so with the concorde, there is a steering arm welded to the strut body, which also connects a sway bar end link (ball in socket design on both ends). Now, not a terrible idea, IF you can get the sway bar links apart, but seeing as though they are constantly hit with water, salt and other debris, and the fact that they have only a 5/16 hex to stop the ball from turning while trying to undo the nut, good freaking luck. So those had to be cut off either side. And had to replace said sway bar links.
The outer tie rods came out easily enough, however chrysler uses these stupid sleeves the go inside the steering arm that comes from the rack so its threaded on the inside and outside so they can use one tie rod for both sides, but different sleeves... one side was frozen due to corrosion (they are slotted as well which does not help with moisture making its way into ALL of the threads)
The lower spring isolators were totally gone at all 4 corners, thats one of the parts we had to replace and did so, rears have a nice spring stop to orient the strut top to bottom properly. Fronts did not, even though the stock isolators did, so that was kind of an annoyance, but the factory service manual had an orientation diagram. (We have the manual for other things, not really needed on a strut job however). Fronts, the monroe replacement struts worked well, except for the fact that the ABS sensor wire bracket hole is not tapped, and had to be threaded to run the factory screw in, how do they miss things like this? (they provide you a nut that doesnt fit anything, perhaps they thought it would through bolt the bracket back on? however the stamped hole is too small for that)
On to the rears, rear suspension design (HORRIBLE DESIGN FOR WORKING ON STRUTS). For starters, and I understand that these cars were designed to have them actually make money, which they didn't anyhow as they went bankrupt. But seriously, had to remove the rear seat, package tray, and looking around, there are no covers, or access to the strut tops... hmmm, yep they are under the speakers, with no access from the trunk either, so out come the speakers too.
Lower connection to a strut is normally a bracket welded to the strut housing with two bolts through the spindle, however on the concorde, its a huge hole in the casting with a cinch bolt and a slot in the cinch area. Perfect area for water to get in and corrode the hell out of the fastener and such, bad idea, and the strut sticks down out of the bottom of the cinch area a good 1.5" meaning you have to get that 1.5" of corroded strut body through the cinch portion of the spindle to get it out. I also had to remove the rear toe suspension link because, yep you guessed it, it blocks access to the cinch bolt. Also have to remove the sway bar link which connects to the strut instead of the spindle, as well as the caliper because the suspension will not droop enough to get the strut body out of the spindle with it attached.
The cinch bolts were seized pretty badly and took over an hour a piece to get out without breaking them using heat, and spray and an impact, running them back and forth til they came out finally.
So, day two after getting the isolaters, we put together all the struts as I normally would, fronts compress springs, orient springs properly, put on the strut rod nut, tighten is some, release the springs, and finish tighten with impact til it seats the mount to the shoulder on the strut rod, and done
Rears are easier, as you don't need to compress the springs with the compressor, just by hand, start the nut and impact it down, seems simple enough. (Yes I know they have a tool for holding the strut rod etc, but no one carries them at any parts places generally, and they look at you like they have no clue what you are asking for)
So, re-install the rear they have a metal stamping that is welded to the body to set rotation (small area that goes into the slotted area on the cinch area of the spindle, and also a stop to set the height of the cinch bolt relief so that the bolt can go through when the strut is at the right height). Rotation location good, height stop on both sides was wrong to the cinch bolt height, and it was not corrosion on the spindle causing the spacing as it was 1/2 a hole off on both sides, conclusion: bad quality control.
Finally get the rears installed,wrap up everything, and go for a test drive, immediately stop in the driveway, and turn around to go back to the shop, rears are rattling like mad at the upper strut rod bolt. Now I'm thinking I just didn't get them tight... there is really no access with them in the car, so I pull both sides all back apart (2nd time is easier at least after anti-seizing the tough parts).
I take an offset wrench, and hold the strut rod with a 3/8" breaker bar, they are tight...
I take the strut rod nut off and pull off the upper mount for a closer look, and yep, no relief or very little relief where the thread ends, just before the shoulder on the strut rod. This means the nut bottoms on the area that SHOULD be relieved before the upper mount is seated on the strut rod. NICE QUALITY CONTROL!
I grabbed two thick washers with large enough holes to go over the non relieved area, tightened it all down, and put it all back together.... 5:30PM sunday.... Job took twice as long as it should have... should have been about a 6 hour job total start to finish if I had all the parts, and no quality control issues...