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After accident, car slips when making a turn

 
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Old 09-02-2013, 04:19 PM
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After accident, car slips when making a turn

Hi All,

4 years ago, I had an accident with my 92 lude. I hit the left front wheel against a wall, and the chassis on that side was pushed inwards. At the repair shop, they had it pulled backwards using metal chains (not sure what this process is called). The guys at the shop told me I needed to replace the suspension spring of the left front wheel as it lost some pressure (oil) during the impact. To date, I still didn't replace this one because it didn't look like a serious problem. However after the repair was done, I noticed the left front side of the car was 5 cm lower than the right side. The mechanic added a thick piece of metal to the suspension in order to compensate for that.

However, from then on, the car would slip whenever I take a brief turn at a relatively high speed. It feels like I'm losing control of the car for a moment, like the car gets loose. I mostly notice this when the road is going down and I'm making a turn (usually turning left). I always need to slow down before making such a turn in order to keep the car stable and under control. Also, when accelerating from idle, both front wheels do not turn in a synchronized manner, and the steering wheel kicks right.

I asked another mechanic about this problem, he told me that's because after such an accident the chassis doesn't go back exactly the way it was, and as a result there's a difference between the left side and right side of the car. He told me there's nothing I can do about it but be careful when turning a corner.

What do you guys think? Did anyone of you have such an experience? Do you think the mechanic is right? Should try to change the suspension to see if the slipping is caused by the spring that lost pressure (will cost me $200+)?

Last edited by jumbo; 09-02-2013 at 04:27 PM.
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Old 09-02-2013, 11:53 PM
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Re: After accident, car slips when making a turn

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Originally Posted by jumbo View Post
I hit the left front wheel against a wall, and the chassis on that side was pushed inwards. At the repair shop, they had it pulled backwards using metal chains (not sure what this process is called).
They were trying to straighten the frame -- since the Prelude's "frame" is actually the body shell, trying to pull the suspension and subframe attachments points back into the correct alignment. It's unclear whether they entirely succeeded.

Quote:
The guys at the shop told me I needed to replace the suspension spring of the left front wheel as it lost some pressure (oil) during the impact. To date, I still didn't replace this one because it didn't look like a serious problem. However after the repair was done, I noticed the left front side of the car was 5 cm lower than the right side. The mechanic added a thick piece of metal to the suspension in order to compensate for that.
Shouldn't have anything to do with oil...but if the spring broke, or the points where the spring mounts weren't pulled back into alignment, that would be a problem. Maybe the shock absorber lost some oil...but they should have replaced the shock. Installing a 5 cm shim isn't a good sign -- where did the mechanic put it?

Did anyone align the wheels afterwards?

Quote:
However, from then on....
All this indicates the job wasn't done correctly, either because they did a bad job or because the damage was too severe.

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I asked another mechanic about this problem, he told me that's because after such an accident the chassis doesn't go back exactly the way it was, and as a result there's a difference between the left side and right side of the car. He told me there's nothing I can do about it but be careful when turning a corner.
Technically, yes -- it's next to impossible to restraighten the frame exactly...but if they couldn't do it well enough to make the car drive correctly, they should have told you so. Sending you back out and just saying "be careful" is criminal.

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What do you guys think? Did anyone of you have such an experience? Do you think the mechanic is right? Should try to change the suspension to see if the slipping is caused by the spring that lost pressure (will cost me $200+)?
I think you need to get a mechanic who knows chassis and suspensions to look at it and tell you what's necessary to fix it, if it's possible. At a minimum, that'll mean replacing any broken parts (springs or otherwise) and realigning the wheels. It might mean more straightening...you shouldn't need a 5 cm shim -- that's nearly two inches! -- to get a wheel back into position.
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Old 09-03-2013, 12:35 AM
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Re: After accident, car slips when making a turn

Once the frame is bent, always impossible to get it perfect. You better off finding another shell and move all your parts to new shell if you really love preludes.
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Old 09-03-2013, 03:25 AM
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Re: After accident, car slips when making a turn

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I think you need to get a mechanic who knows chassis and suspensions to look at it and tell you what's necessary to fix it, if it's possible. At a minimum, that'll mean replacing any broken parts (springs or otherwise) and realigning the wheels. It might mean more straightening...you shouldn't need a 5 cm shim -- that's nearly two inches! -- to get a wheel back into position.
Thanks Jamie for the thorough reply. This is what I'll try to do next, take the car to a good tuning shop to see if they can come up with something.
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Old 09-03-2013, 01:43 PM
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Re: After accident, car slips when making a turn

Body shop, not tuning. Get the shim corrected by the new body shop, sue the old shop for negligence, knowing full well if a chassis pull didn't correct the underlying issue but took your money anyway.

You've been very lucky you haven't been harmed
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Last edited by Sideswipe SI; 09-03-2013 at 08:11 PM. Reason: My math no feel so good
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Old 09-03-2013, 02:44 PM
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Re: After accident, car slips when making a turn

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Originally Posted by Sideswipe SI View Post
Body shop, not tuning. 49mm is 2 inches. Get the shim corrected by the new body shop, sue the old shop for negligence, knowing full well if a chassis pull didn't correct the underlying issue but took your money anyway.

You've been very lucky you haven't been harmed
4 years later tho your gonna go back n be like ya you guys didnt do a good job on fixing my car.. bet they say get the fok outa here. maybe a few weeks or months but not 4 years.
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Old 09-03-2013, 03:34 PM
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Re: After accident, car slips when making a turn

He would need to check the statute of limitations for the negligence in his neck of the woods. If some dude can sue me almost 2 years after a fender bender without seeing a doctor same day, is bogus, but legal.... Apparently.
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SURGEON GENERAL WARNING:
THE IMITATION OF ANY OR ALL MANEUVERS EXECUTED BY A BA B20A 4WS PRELUDE IS HAZARDOUS TO YOUR CAR'S HEALTH. DRIVING A PRELUDE MAY CAUSE LOSS OF INTEREST IN OTHER CARS, WOMEN AND SPEED LIMITS. OTHER SYMPTOMS INCLUDE SLEEPLESS NIGHTS, COLD SWEATS AND OTHER SYMPTOMS RELATED TO ADDICTION. IF THE SYMPTOMS PERSIST,DRIVE!
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Old 09-03-2013, 05:50 PM
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Re: After accident, car slips when making a turn

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Originally Posted by Sideswipe SI View Post
49mm is 2 inches.
Stop it...that's like flapping a red flag in front of a bull! One inch is 25.4mm...will let you do the rest of the math yourself. :)
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Old 09-03-2013, 08:09 PM
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Re: After accident, car slips when making a turn

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Originally Posted by Jamie View Post
Stop it...that's like flapping a red flag in front of a bull! One inch is 25.4mm...will let you do the rest of the math yourself. :)
Really??? *half of house collapses in the background*

Gotta check some equations dyslexia strikes again
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SURGEON GENERAL WARNING:
THE IMITATION OF ANY OR ALL MANEUVERS EXECUTED BY A BA B20A 4WS PRELUDE IS HAZARDOUS TO YOUR CAR'S HEALTH. DRIVING A PRELUDE MAY CAUSE LOSS OF INTEREST IN OTHER CARS, WOMEN AND SPEED LIMITS. OTHER SYMPTOMS INCLUDE SLEEPLESS NIGHTS, COLD SWEATS AND OTHER SYMPTOMS RELATED TO ADDICTION. IF THE SYMPTOMS PERSIST,DRIVE!
Prelude: Because all great stories have one. Just like Honda.
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Old 09-05-2013, 07:48 PM
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Re: After accident, car slips when making a turn

Dude, seriously.

1- Go to a junkyard and pick up the whole front left suspention and install it.
2- Take it to an alignment shop.

Bet you your problems will be 100% solved.

Simple. Easy. Somewhat cheap.
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