lubricate jounce bumper [Archive] - The Chrysler Minivan Fan Club Forums

: lubricate jounce bumper



xitrum08
09-06-2008, 12:47 AM
does anyone have the illustration to show how to lubricate the jounce bumper without removing strut?,and what lubricate should I use,because it's making squeal when I turn the wheels,especially on the driver side.I did check and it's still in good condition before I installed it's just making squeal.thank you

Bernard Feltzer
09-06-2008, 03:19 AM
How can rubber squeal ?

The rubber bumpers mounted on strut rods don't make noise.
Their function is too cushion the top of strut assembly if you go over a wavey bump in the road or hit a deep chuckhole.
Without them you would hear the strut slamming into the bearing plate, it is scary noise sounds like a loud crunch.

If you "have" to lubricate the rubber to prove a point, use some dry aerosol silicone or grapite powder in a can.
Do not use oil, or WD40.

You probably have a power steering pump noise problem.

Jeepman
09-06-2008, 01:20 PM
Jounce bumpers can be noisy. See http://findarticles.com/p/articles/mi_qa3828/is_200607/ai_n17188591

MONROE SHOCK AND STRUTS FAQ - http://www.a-1shocks.com/shock-absorbers-101/

xitrum08
09-10-2008, 06:35 PM
I am sure it's the jounce bumper,there is something that I can not figure it out that every time I jack the van up and put it down it's so quite when I turn the wheel then starts making noise around the strut tower.

Jeepman
09-10-2008, 07:41 PM
I am sure it's the jounce bumper,there is something that I can not figure it out that every time I jack the van up and put it down it's so quite when I turn the wheel then starts making noise around the strut tower.

I have in front of me, on the kitchen table, a strut mount assembly and a dust boot containg a jounce bumper. All I am missing is the strut or supper. :biggrin:
With the vehicle jacked up and the wheel removed, the suspension should be hanging down enough to be able to move the dust boot, containing the jounce bumper, downward to get access to the shaft for lubrication. I suggest using a Q-Tip or toothbrush to lubricate, using maybe Permatex Brake Lube (does not damage rubber) or use a product like Rust Check Rust Inhibitor in a spray can (red can).

http://www.permatex.com/products/Automotive/lubricants/specialty_lubricants.htm
http://www.rustcheck.com/products.asp

ESADORNED
09-11-2008, 12:33 AM
Is the noise continuous or just a sound for a second while maintaining the steering wheel position?

KC.

Jeepman
09-11-2008, 01:53 AM
Is the noise continuous or just a sound for a second while maintaining the steering wheel position?

KC.

http://findarticles.com/p/articles/mi_qa3828/is_200607/ai_n17188591

Chrysler

Front end noise. Some 2001-05 Chrysler minivans (Town & Country, Caravan, Voyager) and 2004-05 Pacifica models may give off a creaking, squeaking, grinding or groaning sound from the front end when the steering wheel is turned during parking maneuvers. Chrysler says the source of the noise is most likely the front strut jounce bumpers. Lubing the bumpers with a special grease (Part No. 05019061AA) should quell the noise immediately.

To verify the diagnosis, start by getting the truck up on a lift. Now grab the right front strut dust boot and jostle it around, front-to-back and side-to-side. If you hear the noise, you've nailed the jounce bumper as the culprit. Repeat the drill on the left side of the vehicle. To eliminate the noise, apply the grease to the jounce bumper(s) in the areas indicated in the illustration at right.

xitrum08
09-11-2008, 08:20 PM
it's only making noise when I park the van for a few hours when I start baking up or drive forward.After that it's ok when I drive and turning the wheel or do whatever I want it's still ok,until I get home and park.It will repeat the same problem as I just described.

Jeepman
09-11-2008, 09:37 PM
it's only making noise when I park the van for a few hours when I start baking up or drive forward.After that it's ok when I drive and turning the wheel or do whatever I want it's still ok,until I get home and park.It will repeat the same problem as I just described.


Let us know when you lubricate it. Hopefully the sound will go away.

xitrum08
09-13-2008, 10:31 PM
thank you all for helping me out,I did as Jeepman said but it was not quite done,still a little noise after parking a few hours,if i do not want to hear the crazy sound,before I back up or drive forward,just turn the wheel a few turns and it will shut its mouth up.I give up:jpshakehe

xitrum08
09-14-2008, 12:57 AM
Hi Jeepman,you told me to jack the van up and remove the wheel so the suspension should be hanging down enough to be able to move the dust boot, containing the jounce bumper, downward to get access to the shaft for lubrication,but what I can remove is only the dust boot, not the jounce bumper,what should I do?

Jeepman
09-14-2008, 02:02 AM
Hi Jeepman,you told me to jack the van up and remove the wheel so the suspension should be hanging down enough to be able to move the dust boot, containing the jounce bumper, downward to get access to the shaft for lubrication,but what I can remove is only the dust boot, not the jounce bumper,what should I do?

The jounce bumper should be inside the dust boot and at the top of the dust boot. It could be an off white, yellowish / orangeish color, if you can see it. You might not be able to. Are you sure you see the jounce bumper or maybe it is the bottom of the strut mount assembly that you are seeing.
Take a look at this site as to a typical arrangement. Items 7 and 9 are the bumper and boot.
http://www.autozone.com/az/cds/en_us/0900823d/80/0e/df/ae/0900823d800edfae/repairInfoPages.htm

If lubricating the shaft isn't working this way, remove the top shaft nut and try spray or drip lubricant down there.

Here's some Monroe parts. The yellow component is the jounce bumper.
http://www.monroe.com/products/mp_category.asp?cat=Accessories

Jeepman
09-14-2008, 09:34 AM
The jounce bumper should be inside the dust boot and at the top of the dust boot. It could be an off white, yellowish / orangeish color, if you can see it. You might not be able to. Are you sure you see the jounce bumper or maybe it is the bottom of the strut mount assembly that you are seeing.
Take a look at this site as to a typical arrangement. Items 7 and 9 are the bumper and boot.
http://www.autozone.com/az/cds/en_us/0900823d/80/0e/df/ae/0900823d800edfae/repairInfoPages.htm

If lubricating the shaft isn't working this way, remove the top shaft nut and try spray or drip lubricant down there.

Here's some Monroe parts. The yellow component is the jounce bumper.
http://www.monroe.com/products/mp_category.asp?cat=Accessories



If lubricating the shaft isn't working this way, remove the top shaft nut and try spray or drip lubricant down there.
Should have wheels on the ground to do this.
You may want to push the rod down a small amount as well (1/8"). Remove the top washer and bushing. Reinstall after lubricating.

Jeepman
09-14-2008, 12:51 PM
Should have wheels on the ground to do this.
You may want to push the rod down a small amount as well (1/8"). Remove the top washer and bushing. Reinstall after lubricating.

Another site, which shows the Quick Strut from Monroe, as an example of the various parts:
http://www.shockwarehouse.com/site/monroe_quickstrut.cfm
The "boot kit" includes the jounce bumper.