September 25, 2021, 02:41:53 PM
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Author Topic:  Random Pull/Torque Steer after new moog lower control arms.  (Read 5148 times)

Offline mystery101

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Noticed some vibration and road noise / rattle on bumps. Found the factory LCA bushing torn and replaced the whole arms with Moogs.
Since then the whole front end seems to act strange around corners that varies with throttle input; You can go around a corner and the whole front end feels like it is stepping sideways either direction and will suddenly change under a shift causing me to have to "overcorrect" the wheel in the opposite way.
Car has been to two separate dealers for an alignment and an independent alignment shop after the fact in an attempt to identify or mitigate the issue.
All 4 wheels seem tight and pass the side to side, up down test off the ground..


The only thing I can think of is maybe I didn't torque the balljoint nut down enough; but it seemed like every time I added leverage to the end of the wrench it would turn more and I felt like was getting close to being overtightened. Both front LCA bolts are tight aswell.


Fitment issues with moogs possible?
2016 SHO- Ruby Red - Performance Pack (Mods: 170*F Thermostat, 3Bar Map, NGK .28 colder plugs, JLT PCV catch can, OBX downpipes, GEARHEAD e30 tune!)

Offline mystery101

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Re: Random Pull/Torque Steer after new moog lower control arms.
« Reply #1 on: July 25, 2021, 07:42:22 PM »
Think I may have found the problem.
2016 SHO- Ruby Red - Performance Pack (Mods: 170*F Thermostat, 3Bar Map, NGK .28 colder plugs, JLT PCV catch can, OBX downpipes, GEARHEAD e30 tune!)

Offline Macgyver

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Re: Random Pull/Torque Steer after new moog lower control arms.
« Reply #2 on: July 25, 2021, 08:01:51 PM »
Why is the offset off ?

Offline mystery101

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Re: Random Pull/Torque Steer after new moog lower control arms.
« Reply #3 on: July 26, 2021, 08:44:32 PM »
Today I went to a different dealer for an alignment. They spent 3 hours trying to get it into spec and failed.
They claim the alignment keeps changing after they get it off the rack and test drive it.
The diag is a $2500 estimate for steering gear as according to the tech its rattling and the rack has a rotational/up and down play
(Which I've been throwing parts at this car to fix)


Not sure which route to go. Been trying to search for any success of programming a new rack via forscan..
2016 SHO- Ruby Red - Performance Pack (Mods: 170*F Thermostat, 3Bar Map, NGK .28 colder plugs, JLT PCV catch can, OBX downpipes, GEARHEAD e30 tune!)

Offline SHOdded

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Re: Random Pull/Torque Steer after new moog lower control arms.
« Reply #4 on: July 30, 2021, 02:54:07 PM »
have an independent service shop verify your work with the LCAs.  have never heard of an issue with Moogs other than they don't last nearly as long as Ford/MC LCAs.  probably better off with Detroit Axle for parts.  Moog does make quality sway bar links (greasable).
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Offline mystery101

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Re: Random Pull/Torque Steer after new moog lower control arms.
« Reply #5 on: August 05, 2021, 10:38:19 AM »
Moogs were the only option for me as the OEM's were backordered to hell and back. I didn't want to take the OEM originals to a shop to get pressed.
I guess the only good thing is the moogs were cheap on Autozone through a commercial account and have a lifetime warranty.
The car was just dropped off at Alignment Shop Inc in Ormond Beach to be remeasured by hand, Took it to two local honest mechanics that said nothing is loose.

2016 SHO- Ruby Red - Performance Pack (Mods: 170*F Thermostat, 3Bar Map, NGK .28 colder plugs, JLT PCV catch can, OBX downpipes, GEARHEAD e30 tune!)

Offline mystery101

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Re: Random Pull/Torque Steer after new moog lower control arms.
« Reply #6 on: August 05, 2021, 03:36:54 PM »
Just came back from alignment shop. Guy said rack seems fine to him and got the wheel straight. Said toe was out still from yeomans.
But then told me he drove it and no matter what it would continue to sidestep/pull on heavy throttle. He then suggested it might be the RDU after he took it to a cooperative mechanic on the same block to see if he missed anything loose. They said they noticed a clunk that corresponds with rotation to the AWD. Although I don't have any issues with my AWD, PTU had been replaced at 75K even with thorough maintenance. RDU fluid has been replaced once at 40K. Noticed occasional puking from the RDU vent in cooler weather with abuse soon after. Vehicle has a vibration that hasn't ever really gone away at 85MPH, Even after 5 different sets of tires and all rims checked for roundness or straightened by a shop. Brakes are brand new all around and didn't change anything with vibration/pull either.

Edit: I believe the clunk is more related to the Gearhead Tune and its shift strategy and pressures. I also wonder maybe trying a Longitudinal sensor relearn or Steering angle relearn would probably fix this.
« Last Edit: August 05, 2021, 05:51:04 PM by mystery101 »
2016 SHO- Ruby Red - Performance Pack (Mods: 170*F Thermostat, 3Bar Map, NGK .28 colder plugs, JLT PCV catch can, OBX downpipes, GEARHEAD e30 tune!)

Offline glock-coma

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Re: Random Pull/Torque Steer after new moog lower control arms.
« Reply #7 on: August 08, 2021, 05:41:37 PM »
I thought the torque steer was a product of the uneven length of the cv axles.


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Offline mystery101

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Re: Random Pull/Torque Steer after new moog lower control arms.
« Reply #8 on: August 09, 2021, 01:34:50 AM »
Not sure. There are mechanics that recognize this as not normal due to it being awd with epas with pull correction.
2016 SHO- Ruby Red - Performance Pack (Mods: 170*F Thermostat, 3Bar Map, NGK .28 colder plugs, JLT PCV catch can, OBX downpipes, GEARHEAD e30 tune!)

 


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