karayjay

When I drive my car about 15-25 mph you can feel the car wobble to the point that if you line up the driver mirror to the line in the road (highway in traffic) I notice for sure the CAR wobbling left to right and it feel like the rear also at 60 mph there is a vibration but some days are worse then other ?? what is that all about ... before we jump and all say tires at 60 when you hit the brakes the car pulsates .. the front rotors are new 4 months I know a rotor causes the pulsating but a wobble too? I find that hard to believe. What am I missing? Bent rim but then why pulsating? A bent rim wont cause that,,,,any ideas or help would be great..

jonUF02

Have a good check of all of your suspension bushings and rod ends, ball joints, etc. Any rubber parts that could be degraded or completely decomposed.

dlbehrns

How many miles. I replaced my steering damper at just under 40K and that made a big diff. Quick, easy and inexpensive to replace first.

GatorMB

I have read some posts about motor mounts causing bad vibes but the suspension is likely the problem. (control arm bushing) hunch
The 208 steering box requires re-torqueing after 40k miles, I found a drastic change after performing this service. Cabs under carriage supports should be re-torqued as well.
Pulsating brakes are rotors or bad caliper bushings. Check the rear suspension and brakes rotors.

Gator

jonUF02

I just did my steering damper too. It was totally shot, no resistance. The only difference I feel is slightly tighter or more responsive steering. I think this issue is something more. I'm guessing some dead bushings, or maybe a bent rim.

karayjay

I forgot to mention it is the rear or the car not front......
To add to the problem I replaced the shocks 2 weeks ago and drove the car but I was hearing a new noise when I went over bumps and thought by accident I put the rear shocks up front and the front in the rear the only difference is about ½ inch in length. Well doing that caused a knock in the back over big bumps. So even though I was sure I did it right I wen t back in and swapped the shocks around. The noies went away with the shocks on backwards which was great but now over dips in the road it bags real bad (bottom out). I will put the shocks back were they should be because it raised the car about 2 inches weird I know considering they are only ½ taller…
I have learned that the rear shock are softer then the front H14 rear V24 front..
My new question is what is causing the bouncing effect when going over dips in the road when the shocks that I have backwards are stiffer and only ½ longer…I am pissed at myself for second guessing and now have to revert back but do you guys think I have a spring problem ?.When you push down on the back of the car to test the shocks it is very stiff and all seems well…

jonUF02

Well that info opens a whole giant can of worms. You may have damaged something by installing incorrectly and bottoming out, or just installed something incorrectly.

Josh K

This.

Even though the shocks only look to be 1/2" different in length, you're looking at them uncompressed. On the inside they're valved differently to handle the weight difference from front to back, so with weight on them, their perceived length difference will be greater.

The bouncing effect is because the shocks you have in front are the proper stiffness and travel length for the weight and suspension travel of the rear of the car - the part that doesn't have the heavy *** motor and trans. And the ones in the back that have the appropriate stiffness for the motor are now overly stiff for the lighter side of the car. So your car will be bouncier in the front and snappier in the back - this will only be further exacerbated at speed over bumps.

Put your shocks where they belong before you damage them (particularly the overloaded rear ones you have in the front).

karayjay

Yea josh I agrree I was think the exact same thing jsut needed an 2ng opion. I will swap them back tomorrow and then look into a rim or tire for the wobble.

karayjay

Well the swap back went real well much better ride I had no idea the shocks could be so forcefull against the springs casue the car to lift 2 inches. The correct shoks lowered the car and created less stress on the spring so it's a much soother ride now. Just need to find a w208 2001 rim 7 spoke

Josh K

If they were raising the car it's likely that they were compressed all the way to the internal bumpstops, in which case you had no suspension travel. If that's the case, the springs weren't stressed - all the weight was being supported by the shock tubing.

karayjay

OK so let go back to figure out my rear wobble. The rear right is pulsating when I hit the breaks on the highway. The between 15 and 25 mph the car wobbles to the point if you look in the mirror you see the shifting. So is it the tire? rim or bearing or disc ? I thought it was the tire or rim but why the pulsating when hitting the break..

MarcusF

Have you checked the rotor thickness? Rotors are normal wear parts and if they wear beyond the service limit, they will easily warp. Warped rotors vibrate. The service limtes are 25.4mm for the front and 8.3 mm for the rear.

karayjay

I understand that part for the paulsting but at 15-25 mph they can be so warpped that the car can be seen shifing left to right ...I feel it's the tire but how can I tire cause pualsating and it diifently the rght rear? I may swip left to rigt today which I just thuoght of...if it switches sides then it a tire or rim

Orkinman

Just be sure to look and see if your tires are directional. If so you can't switch right to left.