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jacek_p 03-29-2016 10:56 AM

abnormal tire wear at inner shoulders
 
so, i checked the alignment. it's withing the range, but barely.
camber: front -1.6/-1.7 (should be -1+/-0.75); rear -1.7/-2.0 (should be -1.4+/-0.75)
toe: front 0.28 (should be under 0.30 IIRC); rear 0.21 (should be under 0.35 IIRC)
all in degrees.

would you realign with those values?

the camber is not adjustable, but aftermarkets bolts and shims are available at $8-10 a piece and it's not that hard according to the instructions.

billysvue 03-29-2016 11:35 AM

Re: abnormal tire wear at inner shoulders
 
With "abnormal tire wear at inner shoulders" , yes ,recheck, realign, do what you have to do.

ruley73 03-29-2016 07:06 PM

Re: abnormal tire wear at inner shoulders
 
1 Attachment(s)
GM has revised the Ion's wheel alignment specifications on the Ion at least twice (TSBs 05-03-07-007 - dated 6/7/2005 and 05-03-07-001B - dated 7/27/2005). I have attached a copy which has the revised specifications to ensure you are referencing the correct data.

[ATTACH]45789[/ATTACH]

jacek_p 03-29-2016 10:34 PM

Re: abnormal tire wear at inner shoulders
 
[QUOTE=ruley73;2185803]GM has revised the Ion's wheel alignment specifications on the Ion at least twice (TSBs 05-03-07-007 - dated 6/7/2005 and 05-03-07-001B - dated 7/27/2005). I have attached a copy which has the revised specifications to ensure you are referencing the correct data.

[ATTACH]45789[/ATTACH][/QUOTE]

thanks. not sure what jounce bumper i have, but suddenly the normal alignment turned into abnormal one. I guess i'll be getting the shims when i figure out the jounce bumper situation.

2006 ion2 03-30-2016 03:50 PM

Re: abnormal tire wear at inner shoulders
 
I would realign the camber and toe.

jacek_p 03-30-2016 10:17 PM

Re: abnormal tire wear at inner shoulders
 
this is what i'll do. i'll add +1 degree camber to each wheel and that will put me in range for both jounce bumper types. why would that matter anyhow?
will reevaluate toe later, but it looks good now.

ruley73 03-31-2016 07:18 PM

Re: abnormal tire wear at inner shoulders
 
[QUOTE=jacek_p;2185954]this is what i'll do. i'll add +1 degree camber to each wheel and that will put me in range for both jounce bumper types. why would that matter anyhow?
will reevaluate toe later, but it looks good now.[/QUOTE]

Your car most likely has the one-piece jounce. They revised the rear axle during the 2006 model year. One of the TSBs I referenced summarizes the changes. It basically says to use the old parts until they are exhausted. Once all the old parts are used up then the entire rear axle needs to be replaced with the newer style if it ever needs to be serviced. The newer style has the two-piece jounce.

Ecomike 04-13-2019 09:28 PM

Re: abnormal tire wear at inner shoulders
 
[QUOTE=ruley73;2185803]GM has revised the Ion's wheel alignment specifications on the Ion at least twice (TSBs 05-03-07-007 - dated 6/7/2005 and 05-03-07-001B - dated 7/27/2005). I have attached a copy which has the revised specifications to ensure you are referencing the correct data.

[ATTACH]45789[/ATTACH][/QUOTE]


I have two Saturns, but I am Jeep....etc person experience wise.

What is the 1-2-3 of the FE1 FE2 FE3 on that spec sheet, and what in the world is a Jounce bumper? Trying to pick up some Saturn ION ( 3-?) info before I started my own horror show thread :eek: on our new to us 2003 Ion

ruley73 04-14-2019 03:05 PM

Re: abnormal tire wear at inner shoulders
 
[QUOTE=Ecomike;2296938]I have two Saturns, but I am Jeep....etc person experience wise.

What is the 1-2-3 of the FE1 FE2 FE3 on that spec sheet, and what in the world is a Jounce bumper? Trying to pick up some Saturn ION ( 3-?) info before I started my own horror show thread :eek: on our new to us 2003 Ion[/QUOTE]

The jounce bumper is mounted on the top side of the coil spring to circumvent bottoming out.

The FE1/FE2/FE3 is the suspension code as shown on the RPO code sticker on the left side of the floor in the trunk. Only Red Lines came with FE3. Some Ion-3 models came with FE2. All others have FE1 suspension.

The springs/shocks/struts are FE1 (soft) >>> FE2 (firmer) >>> FE3 (firmest).

Ecomike 04-14-2019 04:06 PM

Re: abnormal tire wear at inner shoulders
 
Ah, now I get it. Thanks, I rarely need to mess those, and slept since I last saw one, LOL. Always just called them a bump stop I guess (Jeep lingo).


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