Front end bounce
Thread Starter
Intermediate
Joined: Oct 2009
Posts: 47
Likes: 0
There's no FX3 in '96. Could you maybe have F45? Do you have any warning lights in the DIC? SERVICE RIDE CONTROL
Have you actually removed a tire wheel and just done a "visual" of the suspension both sides?
"JRC" mentions a "for hire" check and that is maybe certainly your best option.
Yours, if F45 is a "1 year only C4" thing and no one is "familiar" with the system other than the owners that do their own maintenance and have personal experiences. If this is an F45 car you can actually retrieve any DTCs (current if you have an SRC light OR HISTORY of any recent) using the car CCM diagnostics. You need to become maybe better informed about the F45. Your owners manual should give you a DIC "bulb check" for initial "KEY ON" request.
Have you actually removed a tire wheel and just done a "visual" of the suspension both sides?
"JRC" mentions a "for hire" check and that is maybe certainly your best option.
Yours, if F45 is a "1 year only C4" thing and no one is "familiar" with the system other than the owners that do their own maintenance and have personal experiences. If this is an F45 car you can actually retrieve any DTCs (current if you have an SRC light OR HISTORY of any recent) using the car CCM diagnostics. You need to become maybe better informed about the F45. Your owners manual should give you a DIC "bulb check" for initial "KEY ON" request.
Thread Starter
Intermediate
Joined: Oct 2009
Posts: 47
Likes: 0
Car sits too much, never the less. What speed does it wobble? Is there a certain place or section of road it happens on? Generally low speed wobble is related to tires. Were tires " Road Force " balanced? I'm guessing you have staggered tires if front tires are rotated to rear does anything change? Yes, I know rear tires a wider ....this is a diagnostic excerise not forever.
Thread Starter
Intermediate
Joined: Oct 2009
Posts: 47
Likes: 0
There's no FX3 in '96. Could you maybe have F45? Do you have any warning lights in the DIC? SERVICE RIDE CONTROL
Have you actually removed a tire wheel and just done a "visual" of the suspension both sides?
"JRC" mentions a "for hire" check and that is maybe certainly your best option.
Yours, if F45 is a "1 year only C4" thing and no one is "familiar" with the system other than the owners that do their own maintenance and have personal experiences. If this is an F45 car you can actually retrieve any DTCs (current if you have an SRC light OR HISTORY of any recent) using the car CCM diagnostics. You need to become maybe better informed about the F45. Your owners manual should give you a DIC "bulb check" for initial "KEY ON" request.
Have you actually removed a tire wheel and just done a "visual" of the suspension both sides?
"JRC" mentions a "for hire" check and that is maybe certainly your best option.
Yours, if F45 is a "1 year only C4" thing and no one is "familiar" with the system other than the owners that do their own maintenance and have personal experiences. If this is an F45 car you can actually retrieve any DTCs (current if you have an SRC light OR HISTORY of any recent) using the car CCM diagnostics. You need to become maybe better informed about the F45. Your owners manual should give you a DIC "bulb check" for initial "KEY ON" request.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
sounds like bumpsteer aggravated by a stiff suspension
tie rods and really examining a 4 wheel alignment bet gets you right side up. Just dont let them throw parts at it on your dime.
tie rods and really examining a 4 wheel alignment bet gets you right side up. Just dont let them throw parts at it on your dime.
Race Director
Joined: Oct 2008
Posts: 17,982
Likes: 1,074
From: Lansing MI
100%. I think the slack rebound damping also contributes. My idea is to run castor way up on both sides. Someone on this forum has to have gone through this already, and knows the answer ...
Instructor
Joined: Jan 2013
Posts: 128
Likes: 26
My '91 has exactly the same symptoms (with standard suspension). Wheel alignment was done to "advanced street" spec, didn't change anything. Shocks were tested by a rally shop, they said 'a little lazy but still working'.
Going through the suspension, I found the stabilizer bar bushings were completely gone. I've now changed those but haven't yet tested. Car has 100k miles.
Going through the suspension, I found the stabilizer bar bushings were completely gone. I've now changed those but haven't yet tested. Car has 100k miles.
Instructor
Joined: Jan 2013
Posts: 128
Likes: 26
I wish I could to better - I do have the document, somewhere.. it was suggested by the shop which is known for setting up Corvettes, Porsches etc. They said this alignment is most often requested by people who wish to drive the car as a daily car on nice days but also visit the track a few times in the summer months.
I guess the main point is that the wheel alignment didn't change the nasty bumpsteer and the tuner didn't have any problems.
I guess the main point is that the wheel alignment didn't change the nasty bumpsteer and the tuner didn't have any problems.
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Race Director
Joined: Oct 2008
Posts: 17,982
Likes: 1,074
From: Lansing MI
I wish I could to better - I do have the document, somewhere.. it was suggested by the shop which is known for setting up Corvettes, Porsches etc. They said this alignment is most often requested by people who wish to drive the car as a daily car on nice days but also visit the track a few times in the summer months.
I guess the main point is that the wheel alignment didn't change the nasty bumpsteer and the tuner didn't have any problems.
I guess the main point is that the wheel alignment didn't change the nasty bumpsteer and the tuner didn't have any problems.
The very moniker "advanced street spec" sort of betrays the theme the specs were developed around.
I think the settings that are going to solve this problem would require a name more like "sedate street snoozer".
Cruising
Joined: Nov 2013
Posts: 12
Likes: 0
From: Saint Louis MO
I just bought Continental extreme performance summer tires. now car shakes. road force balance twice, alignment twice. still shakes. I think it's the tires. should have paid $600 more and bought the Eagle F-1's. my mistake I get to live with. looking at other things now, ujoints etc. also put on new shocks, KYB performance shocks. still shakes. stupid me.