C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Magnetic Shock Problems?

Thread Tools
 
Search this Thread
 
Old 07-26-2014, 09:00 AM
  #1  
GYM
Cruising
Thread Starter
 
GYM's Avatar
 
Member Since: Sep 2006
Location: Pataskala Ohio
Posts: 11
Received 0 Likes on 0 Posts

Default Magnetic Shock Problems?

How durable are magnetic shocks and do they require a lot of maintenance? Looking at 2006 which has them.
Old 07-26-2014, 09:36 AM
  #2  
John Harry
Melting Slicks
 
John Harry's Avatar
 
Member Since: Nov 2007
Location: Pittsburgh PA
Posts: 2,127
Received 437 Likes on 270 Posts
St. Jude Donor '10-'11-'12-'13-'14

Default

From what I've read on CF there have been very few problems. Some people have reported "leaking" shocks that turn out to be just normal oil film. My 06 has them and it has been fine.
Old 07-26-2014, 12:35 PM
  #3  
Boat Racer
Burning Brakes
 
Boat Racer's Avatar
 
Member Since: Dec 2006
Location: Gilroy CA
Posts: 1,009
Received 46 Likes on 30 Posts

Default

I have 58K miles on my '07 and no problems with the mag shocks.
Old 07-26-2014, 01:37 PM
  #4  
HOXXOH
Race Director
 
HOXXOH's Avatar
 
Member Since: Sep 2007
Location: Peoria/Phoenix AZ
Posts: 16,555
Received 2,061 Likes on 1,505 Posts
C6 of Year Finalist (performance mods) 2019

Default

118K currently, so ?
Old 07-26-2014, 04:16 PM
  #5  
cclive
Team Owner
 
cclive's Avatar
 
Member Since: Mar 2008
Location: Southern Utah
Posts: 21,506
Received 435 Likes on 372 Posts
Default

Very few problems reported here on the forum...and we know that forums tend to magnify problems. A replacement shock will be very expensive though.
Old 07-27-2014, 10:30 PM
  #6  
TX-Techman
Racer
 
TX-Techman's Avatar
 
Member Since: Aug 2008
Location: Justin TX
Posts: 413
Received 21 Likes on 3 Posts

Default

Originally Posted by GYM
How durable are magnetic shocks and do they require a lot of maintenance? Looking at 2006 which has them.
I bought a 2008 with 25K a few months ago with the F55 option. I had it in the dealer a few weeks later and was told the left front was leaking and was quoted $1100 to replace it.

I took it home and found that the outside of the shock was damp. I pulled the shock for inspection and found that the shock is not leaking at all. Under the rubber boot it was dry and the recess in the shock where the piston rod comes out was dry as a bone too.

Since the shocks are magnetic they tend to attract brake dust, oil, and all kinds of stuff. It is common for the dealer to report leaking shocks but I expect often this is not the case.

I expect to drive mine many more mile and love the feature.
Old 08-12-2014, 07:41 PM
  #7  
radiercks
Intermediate
 
radiercks's Avatar
 
Member Since: Jul 2009
Location: Wisconsin
Posts: 42
Likes: 0
Received 3 Likes on 3 Posts

Default F55 shocks do not last "forever"

Guys,

I'm an engineer. "Nothing" electro-mechanical is "lifetime".
I'm always amazed that anyone still believes this B**S.
My 2005 Vette with the F55 suspension and 70,000+ miles has 3 leaking shocks. Remember that the shock's fluid has microscopic iron particles in suspension and they has shaft seals on top.
The test, as others has noted in the past, is to wipe the dampness you may observe on the shock, especially by lifting any dust boot, and wiping the damp stain with a clean paper towel.
Then, take any small magnet and see if the paper towel is attracted to the magnet. I can lift the towel from the surface it lies on.
This is evidence that the fluid you see is coming from the internals of the shock. "THEY CAN LEAK, AND DO"
I think they can leak and still function until the fluid loss is too great. I think one of mine may be approaching that point.
I don't want to lose the neat system but I am debating about which conventional shocks to replace them with.
Any here have any thoughts on that?

RAD
Old 08-12-2014, 10:23 PM
  #8  
TX-Techman
Racer
 
TX-Techman's Avatar
 
Member Since: Aug 2008
Location: Justin TX
Posts: 413
Received 21 Likes on 3 Posts

Default

Originally Posted by radiercks
Guys,

I'm an engineer. "Nothing" electro-mechanical is "lifetime".
I'm always amazed that anyone still believes this B**S.
My 2005 Vette with the F55 suspension and 70,000+ miles has 3 leaking shocks. Remember that the shock's fluid has microscopic iron particles in suspension and they has shaft seals on top.
The test, as others has noted in the past, is to wipe the dampness you may observe on the shock, especially by lifting any dust boot, and wiping the damp stain with a clean paper towel.
Then, take any small magnet and see if the paper towel is attracted to the magnet. I can lift the towel from the surface it lies on.
This is evidence that the fluid you see is coming from the internals of the shock. "THEY CAN LEAK, AND DO"
I think they can leak and still function until the fluid loss is too great. I think one of mine may be approaching that point.
I don't want to lose the neat system but I am debating about which conventional shocks to replace them with.
Any here have any thoughts on that?

RAD
I am not sure where you are but I checked on replacing mine with Z06 shocks and getting the system reprogrammed. Corvette Warehouse in Dallas said they would reprogram the car and remove the F55 option for around $100. I also heard about the dummy plugs that just plug into the connector and fool the system to make it think the shocks are connected, but heard of some issues with them.

I had heard about the test you mention, however decided to pull mine and check. After pulling the shock and removing the dust boot the top of the shock was completely dry. I only have 26K on the car so hope to get a few more years out of them.
Old 08-12-2014, 10:25 PM
  #9  
AORoads
Team Owner
 
AORoads's Avatar
 
Member Since: Jun 2005
Location: Northern, VA
Posts: 46,104
Received 2,481 Likes on 1,944 Posts
St. Jude Donor '15
"In honor of jpee"

Default

It is unusual but not impossible that the shocks could go bad. As the engineer says, nothing is forever. Unless two shops and a dealer got it wrong, this most recent case is relevant. http://forums.corvetteforum.com/c6-c...hocks-bad.html
Old 08-12-2014, 11:45 PM
  #10  
radiercks
Intermediate
 
radiercks's Avatar
 
Member Since: Jul 2009
Location: Wisconsin
Posts: 42
Likes: 0
Received 3 Likes on 3 Posts

Default Checking them myself

TX-Tecnman, Thanks for the feedback.

Tomorrow I'm going to run mine up on a hoist myself, like I did a year ago, and see exactly what the garage guys saw today.
Maybe they didn't do a thorough enough of a check.
The mechanic told me that there was enough wet oil that it only could have come from the shocks. We'll see.

Anyway ...... if they are failing I'll just use them for the 20th Anniversary Museum Caravan trip and then replace.

By the way, I'm in Wisconsin, just west of Milwaukee.

Thanks for the help so far.

RAD
Old 08-13-2014, 03:54 PM
  #11  
JackC6
6th Gear
 
JackC6's Avatar
 
Member Since: Aug 2014
Location: Atlanta GA
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by GYM
How durable are magnetic shocks and do they require a lot of maintenance? Looking at 2006 which has them.
I just posted about this yesterday. I'm a brand new member.

My C6 has 56K on it and all the fluid has leaked out of all the shocks. There's even a recall on the C7's because of this. My ride was horrible, fishtailing, yawing, terrible. So I'm replacing them with Bilstien's and using the RTD simulator plugs. Works great. I had so much fluid leak out that the shocks were covered with the fluid. No matter how many times I wiped it off it would reappear. And it was not from the road because this black, oily film was only on the shocks and it started from under the plastic shroud.

When I buy a C7 I will never buy the F55 system again. I have searched a lot of places and have seen many people with the same problem.

My only question is whether I need an alignment after shock replacement. I have found a lot of answers but I don't think I do because I didn't disconnect any tie rods. I have read that a car will only need an alignment after shock replacement only if it has Mac struts.

Opinions?

Thanks.

Jack.
Old 08-13-2014, 08:22 PM
  #12  
TX-Techman
Racer
 
TX-Techman's Avatar
 
Member Since: Aug 2008
Location: Justin TX
Posts: 413
Received 21 Likes on 3 Posts

Default

Originally Posted by JackC6
I just posted about this yesterday. I'm a brand new member.

My C6 has 56K on it and all the fluid has leaked out of all the shocks. There's even a recall on the C7's because of this. My ride was horrible, fishtailing, yawing, terrible. So I'm replacing them with Bilstien's and using the RTD simulator plugs. Works great. I had so much fluid leak out that the shocks were covered with the fluid. No matter how many times I wiped it off it would reappear. And it was not from the road because this black, oily film was only on the shocks and it started from under the plastic shroud.

When I buy a C7 I will never buy the F55 system again. I have searched a lot of places and have seen many people with the same problem.

My only question is whether I need an alignment after shock replacement. I have found a lot of answers but I don't think I do because I didn't disconnect any tie rods. I have read that a car will only need an alignment after shock replacement only if it has Mac struts.

Opinions?

Thanks.

Jack.
No you will not need an alignment when you replace the shocks. Unlike struts, shocks have nothing to do with alignment.
Old 08-13-2014, 08:57 PM
  #13  
JackC6
6th Gear
 
JackC6's Avatar
 
Member Since: Aug 2014
Location: Atlanta GA
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by TX-Techman
No you will not need an alignment when you replace the shocks. Unlike struts, shocks have nothing to do with alignment.
Thanks again to all of you. It is as I thought. If nothing was disturbed then why an alignment? I just had one done a couple of months ago when I replaced my tires.

I didn't think it needed one but I wanted to be sure and you guys seem to know a lot more than I do so this helps a lot.

Jack.
Old 08-13-2014, 08:58 PM
  #14  
musclecar6
Le Mans Master

 
musclecar6's Avatar
 
Member Since: Oct 2004
Location: Ft Mill, SC
Posts: 9,217
Received 148 Likes on 104 Posts

Default

I had an 06 C6/F55 that I drove for 7 yrs/47000 miles that worked perfectly. Replaced it with a 2012 Caddy CTS-V A6 that has mag ride standard. I will eventually replace my 2010 GS ( without mag ride as it wasn't available in 2010) with a C7 Z06 that comes standard with mag ride. I will NEVER own another corvette without mag ride. It's that good at giving a comfortable ride on all but mainly smooth roads. If the budget is tight or one is a super thrifty type, mag ride is not mandatory. You'll just bounce all over the place on rough roads, but you won't have to worry about paying more for replacement shocks ( although some of us think the price is a bargain for what you get. Ferrari has the same system on their cars cause it's that good).
Old 08-13-2014, 09:04 PM
  #15  
JackC6
6th Gear
 
JackC6's Avatar
 
Member Since: Aug 2014
Location: Atlanta GA
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by musclecar6
I had an 06 C6/F55 that I drove for 7 yrs/47000 miles that worked perfectly. Replaced it with a 2012 Caddy CTS-V A6 that has mag ride standard. I will eventually replace my 2010 GS ( without mag ride as it wasn't available in 2010) with a C7 Z06 that comes standard with mag ride. I will NEVER own another corvette without mag ride. It's that good at giving a comfortable ride on all but mainly smooth roads. If the budget is tight or one is a super thrifty type, mag ride is not mandatory. You'll just bounce all over the place on rough roads, but you won't have to worry about paying more for replacement shocks ( although some of us think the price is a bargain for what you get. Ferrari has the same system on their cars cause it's that good).
Well, since I never really got to experience it I don't know how good it really is. But the new rear shocks have made a HUGE difference. The ride is now much smoother.

As for Ferrari, I can see that but I don't have a Ferrari budget and G.M. is REAL proud of those mag shocks, they wanted $3000!! for a set of four! So since mine leaked and I have seen many other posts on other sites of the same AND there's a C7 recall for leaks I thought why they heck spend that kind of money if they might leak again? And G.M. has a patent on them so there's no third party making them.

I'm happy with what I have now. My third Vette and when I get a C7 it will be without mag ride.
Old 08-13-2014, 09:56 PM
  #16  
musclecar6
Le Mans Master

 
musclecar6's Avatar
 
Member Since: Oct 2004
Location: Ft Mill, SC
Posts: 9,217
Received 148 Likes on 104 Posts

Default

Originally Posted by JackC6
Well, since I never really got to experience it I don't know how good it really is. But the new rear shocks have made a HUGE difference. The ride is now much smoother.

As for Ferrari, I can see that but I don't have a Ferrari budget and G.M. is REAL proud of those mag shocks, they wanted $3000!! for a set of four! So since mine leaked and I have seen many other posts on other sites of the same AND there's a C7 recall for leaks I thought why they heck spend that kind of money if they might leak again? And G.M. has a patent on them so there's no third party making them.

I'm happy with what I have now. My third Vette and when I get a C7 it will be without mag ride.

Good. Different strokes for different folks.
Old 08-17-2014, 04:52 PM
  #17  
radiercks
Intermediate
 
radiercks's Avatar
 
Member Since: Jul 2009
Location: Wisconsin
Posts: 42
Likes: 0
Received 3 Likes on 3 Posts

Default Any message displayed as shocks lost fluid?

Originally Posted by JackC6
I just posted about this yesterday. I'm a brand new member.

My C6 has 56K on it and all the fluid has leaked out of all the shocks. There's even a recall on the C7's because of this. My ride was horrible, fishtailing, yawing, terrible. So I'm replacing them with Bilstien's and using the RTD simulator plugs. Works great. I had so much fluid leak out that the shocks were covered with the fluid. No matter how many times I wiped it off it would reappear. And it was not from the road because this black, oily film was only on the shocks and it started from under the plastic shroud.

When I buy a C7 I will never buy the F55 system again. I have searched a lot of places and have seen many people with the same problem.

My only question is whether I need an alignment after shock replacement. I have found a lot of answers but I don't think I do because I didn't disconnect any tie rods. I have read that a car will only need an alignment after shock replacement only if it has Mac struts.

Opinions?

Thanks.

Jack.
Hi Jack,

I currently have the left front shock on my 2005 C6, F55 suspension system, that has begun to leak a lot. I think the ride is become worse than previous. The front seems more ridge when hitting bumps. Did you ever get a warning message on the dash display telling you that your shocks were failing?
I haven't yet seen any warning message. Will there ever be one?
Thanks for any help.

RAD

Get notified of new replies

To Magnetic Shock Problems?

Old 08-17-2014, 05:43 PM
  #18  
Zoxxo
Safety Car
 
Zoxxo's Avatar
 
Member Since: Nov 2006
Location: San Jose California
Posts: 4,025
Received 266 Likes on 98 Posts

Default

Originally Posted by radiercks
Hi Jack,

I currently have the left front shock on my 2005 C6, F55 suspension system, that has begun to leak a lot. I think the ride is become worse than previous. The front seems more ridge when hitting bumps. Did you ever get a warning message on the dash display telling you that your shocks were failing?
I haven't yet seen any warning message. Will there ever be one?
Thanks for any help.

RAD
After reading through the service manual's DTC (code) listings and the related diagnostics for the magnetic shock system, I would have to say no. All of the references, and diagnostics, deal with the electrics and electronics of the system (sensors, activators, power supplies, etc.) There is no system built into the car that can tell what the fluid levels are in the shock tubes.

Z//
Old 08-17-2014, 08:45 PM
  #19  
radiercks
Intermediate
 
radiercks's Avatar
 
Member Since: Jul 2009
Location: Wisconsin
Posts: 42
Likes: 0
Received 3 Likes on 3 Posts

Default

Originally Posted by Zoxxo
After reading through the service manual's DTC (code) listings and the related diagnostics for the magnetic shock system, I would have to say no. All of the references, and diagnostics, deal with the electrics and electronics of the system (sensors, activators, power supplies, etc.) There is no system built into the car that can tell what the fluid levels are in the shock tubes.

Z//
Thanks Z//,

I suspected as much. I would have thought they would have accommodated this possibility, since the computer algorithm that monitors and controls the shocks probably has the ability to record the difference in response each shocks is exhibiting, as the fluid level falls, over the previous weeks and months. The curse of my engineering background leads me to second guess their design.
Thanks again for checking that out.

I'm still mulling over the option of converting all 4 corners to Bilstein Sports, along with sway bar upgrades.

RAD
Old 08-18-2014, 03:56 AM
  #20  
Zoxxo
Safety Car
 
Zoxxo's Avatar
 
Member Since: Nov 2006
Location: San Jose California
Posts: 4,025
Received 266 Likes on 98 Posts

Default

Originally Posted by radiercks
Thanks Z//,

I suspected as much. I would have thought they would have accommodated this possibility, since the computer algorithm that monitors and controls the shocks probably has the ability to record the difference in response each shocks is exhibiting, as the fluid level falls, over the previous weeks and months.
As I said, all the diagnostics revolve around the health of the electronics. The computers know nothing about how or what the shocks are doing (response, etc.) They only know what to tell the shocks based upon what the suspension movements are which is learned from the sensors on each A-arm. It's really a pretty simple system, actually.

I agree that it *ought* to be able to determine long term degradation based upon a logged history but they don't do that.

Z//



Quick Reply: Magnetic Shock Problems?



All times are GMT -4. The time now is 07:37 AM.