is300 felt like floaitng right and left - Lexus IS Forum
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post #1 of 15 (permalink) Old 07-17-2018, 09:48 PM Thread Starter
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is300 felt like floaitng right and left

hi i didnt drive the car for a year sicne i got it back from the bodyshop, when i tried driving it on the freeway around 65mph it felt like the car why go left or right i have to hold the steering wheel with 2 hand and slow down to 40-50 i forgot. any1 know what casue the car that want to jsut spin out?

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post #2 of 15 (permalink) Old 07-18-2018, 08:14 AM
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First thing I would check is the tire pressure. Does the car track straight with the steering wheel when you're going lower speeds?

02' MT w/MK3 Supra LSD and no sunroof
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post #3 of 15 (permalink) Old 07-18-2018, 10:18 AM
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If the tires are good. Check the alignment. Caster may be too low.
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post #4 of 15 (permalink) Old 07-18-2018, 08:23 PM Thread Starter
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tire pressure is good checked. only happen when i go over mybe 50+?

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post #5 of 15 (permalink) Old 07-19-2018, 04:35 PM
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post #6 of 15 (permalink) Old 07-20-2018, 12:37 AM
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I'm gonna guess LCA #2 bushing. Check your bushings....

'03 IS300 SD TCM 5-SPD LSD
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post #7 of 15 (permalink) Old 07-22-2018, 09:29 PM Thread Starter
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i think my front alignment is green but rear alignment is red. will the rear affect it?

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post #8 of 15 (permalink) Old 07-23-2018, 09:16 AM
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I would also check your sway bar endlinks.
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02 IS300 MSM LSD Auto ~415Hp/356Tq~
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post #9 of 15 (permalink) Old 07-23-2018, 01:39 PM
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Anything alignment wise will affect the way it drives. I would def get a re-alignment to rule that out.
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post #10 of 15 (permalink) Old 08-04-2018, 06:54 PM Thread Starter
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alright i putted the car into the alignment machine again and the front toe is off again. seems like the front toe always off i forgot to get the paper for the alignment i'll mybe get it on monday when i go to work.

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post #11 of 15 (permalink) Old 08-20-2018, 08:13 PM Thread Starter
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heres my alignment paper i did not do the toe or camber yet just double checked all my suspension part and saw that my passenger side lower control arm bushing half missing and my rear driver side is leaking. i'll replace those two part before doing the alignment


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post #12 of 15 (permalink) Old 08-21-2018, 09:27 AM
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Fix the bushings before you go back to the alignment shop. Search for No. 1 and No.2 arms on this forum and you'll see that it's very common for the No.2 to go out, which affects your Caster/Camber and Toe of your alignment. Figs for aftermarket polyurethane (not really a difference in ride harshness) or MOOG/whatever for aftermarket OEM spec.

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post #13 of 15 (permalink) Old 09-01-2018, 08:24 PM Thread Starter
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oky jsut changed out my no1 lower control arm and rear strut and when i changing out the no1 lower control arm i found out that the no2 lower control arm is badly worn out. from just underneath looking at it it looks good but when changing out the no1 control arm moving it up and down you can see it was worn out very bad. ordered lower control arm and will do alignment after.

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post #14 of 15 (permalink) Old 09-11-2018, 07:17 PM Thread Starter
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k after installing rear driver side shock and passenger #1 and #2 lower control arm the car feel much safer to drive on freeway just little bit steering wheel loose when hitting bumps on freeway. heres my alignment after everything


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2002 MSM IS300

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post #15 of 15 (permalink) Old 09-17-2018, 01:53 PM
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The Camber and Toe look good in the front, but the Castor is pretty bad on the LF compared to the RF (5.5 vs 8.2 degrees). That will affect how the car wanders on the highway.

The rear also has a toe issue. LR is ok, but the RR has a negative value. I bet your adjuster or frame mount for the RR toe link is buggered. I'd get some rear toe links from Megan Racing or Figs to clear that up (these have way more adjustment compared to stock).

That picture is in black and white, if it actually has color on it I bet some of those values are showing red.

02' MT w/MK3 Supra LSD and no sunroof
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