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Weird Sliding on bridges problem?

 
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Old 18 Jul 2016, 11:48 pm
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Default Weird Sliding on bridges problem?

Hi all,
I'm new here but I'm hoping that someone might be able to help me. I own a rebuilt 2008 pt cruiser (her name is Pearl for future reference lol). Anyways I live in south Florida and we have alot of those grated draw bridges over our canals. I noticed that my Pearl has taken to playing a fun little game that I call "Let's go over the bridge". She tends to slide around on these bridges, I have almost gone over several of them because she wants to drift off to one side and it feels like I'm going sideways whenever I cross over one of them, especially when the bridge is wet. I can feel the steering wheel being pulled off to the right side and I usually have to slow down and keep a tight grip on the steering wheel and pull it towards the left slightly. She only drifts on the metal grate part though. I'm wondering if anyone else has had this happen to them or if anyone knows what could be causing this. I have 4 brand new Goodyear tires on the car and my alignment was recently checked out. I've had her going on 3 years now. I was recently in an accident and had to have my frame fixed and my radiator replaced. The front axle was replace shortly after I received her. This problem has been ongoing since I received her so I can't imagine that it is related to the recent accident. Any help would be greatly appreciated.
Thank you!
P.S does anyone else have turn signals that don't shut off automatically?
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Old 19 Jul 2016, 12:15 am
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Default Re: Weird Sliding on bridges problem?

Quote:
Originally Posted by cruiserqueen View Post
Hi all,
I'm new here but I'm hoping that someone might be able to help me. I own a rebuilt 2008 pt cruiser (her name is Pearl for future reference lol). Anyways I live in south Florida and we have alot of those grated draw bridges over our canals. I noticed that my Pearl has taken to playing a fun little game that I call "Let's go over the bridge". She tends to slide around on these bridges, I have almost gone over several of them because she wants to drift off to one side and it feels like I'm going sideways whenever I cross over one of them, especially when the bridge is wet. I can feel the steering wheel being pulled off to the right side and I usually have to slow down and keep a tight grip on the steering wheel and pull it towards the left slightly. She only drifts on the metal grate part though. I'm wondering if anyone else has had this happen to them or if anyone knows what could be causing this. I have 4 brand new Goodyear tires on the car and my alignment was recently checked out. I've had her going on 3 years now. I was recently in an accident and had to have my frame fixed and my radiator replaced. The front axle was replace shortly after I received her. This problem has been ongoing since I received her so I can't imagine that it is related to the recent accident. Any help would be greatly appreciated.
Thank you!
P.S does anyone else have turn signals that don't shut off automatically?
Was the frame fixed by someone that knows how to fix frames?

Was the front axle replaced with one that was new or from a junk yard?
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Old 19 Jul 2016, 12:28 am
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Default Re: Weird Sliding on bridges problem?

The frame was fixed by Maaco and the axel was replaced at my local tire kingdom with a brand new axle. I was told at the time that the car had been repaired before i bought it with alot of junkyard parts. The mechanic showed me where my left strut was on the right side and my right was on the left.The tire kingdom has done good work for me in the past and as I've stated the problem was going on before the last accident so it can't possibly be from the frame work. Could this possibly be because of a shoddy rebuild before I bought her? I found out when I called to get insurance the first time that she had been totaled and the previous insurance company had taken over the title. Which explained why geico was on the title when my grandparents purchased her for me.
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Old 19 Jul 2016, 07:08 am
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Default Re: Weird Sliding on bridges problem?

This makes sense to me....

My next question: Swaying on a metal bridge.
quicksilverdon and chuzz like this.
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Old 19 Jul 2016, 07:48 am
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Default Re: Weird Sliding on bridges problem?

Many cars "Squirm" over the "waffle-metal" bridges - the worst I ever felt was on a motorcycle with knobby tires.
If your car is okay on normal roads, I think you are fine.
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Old 19 Jul 2016, 07:59 am
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Default Re: Weird Sliding on bridges problem?

My first advice is to slow down. If you are talking about "almost going over" then you should be going slower.

Since your car has had so many wrecks and frame work I would start double checking there, but I had a similar issue. The way I would describe is that the car "grabbed" on the bridge grates. In my case it was entirely tire related. The feeling was that it would grab and pull (a perceived) inch or two in one direction and then maybe back in the other direction. I didn't get a chance to really read what Lion posted, but that is probably what that forum is discussing.

Another question I would ask is: How tight are you holding the wheel? Sometimes when we are scared we get a bit of a death grip on the wheel and that can exacerbate any slight pull the car might have. When you first go off-roading that is a common problem. Be like .38 Special - Hold on loosely, but don't let go.

I would suggest you drive over a few fairly slowly without holding the wheel too tightly. Which way does the car head? Is it always in the same direction? Does it correct itself or keep going in the same direction?
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Last edited by Fk5; 19 Jul 2016 at 08:16 am.
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Old 19 Jul 2016, 08:15 am
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Default Re: Weird Sliding on bridges problem?

Welcome to the forum


Not un-common if... the tires have an unusual wear pattern or your alignment is off or the sway bar bushings need attention or the shocks or struts are worn or parts on the watts-link are worn. My suggestion is take it to a shop and have them do a complete suspension inspection. They will find the problem.

With so many rail road crossings here in my town we get similar complaints all the time!!! RR seem to accentuate the effect of parts that are worn and need replacing on the suspension.
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Last edited by NitroPT; 19 Jul 2016 at 08:18 am.
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Old 19 Jul 2016, 09:22 am
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Default Re: Weird Sliding on bridges problem?

i like the weird feeling of going over those bridges?
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Old 19 Jul 2016, 10:24 am
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Default Re: Weird Sliding on bridges problem?

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Originally Posted by rob302 View Post
i like the weird feeling of going over those bridges?

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Old 19 Jul 2016, 07:12 pm
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Default Re: Weird Sliding on bridges problem?

this is normal on gated bridges especially with high-speed curves. basically you're feeling the lateral force as the suspension cannot keep the wheels planted on the ground as they 'skip' across the gaps. this happens because of high unsprung weight of the wheels, brakes and moving suspension components.
it's normal. just slow to the point where you feel in control of the car.
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