Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels. -Wikipedia

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3
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0answers
14 views

Why do vehicles handle better with heavy loads?

Inspired by comments here: I'm not the only one who has experienced an improvement in ride and road-feel with a heavily-laden vehicle. I'm recalling a long drive I made a decade ago in my otherwise ...
7
votes
2answers
71 views

How did luxury cars provide smoother rides without active suspensions?

It seems all luxury cars have active suspensions now, so it's not a fair comparison to "non-active" cars. But I was recently driving a mid-2000 Mercedes E-class over the same roads I normally travel ...
7
votes
4answers
147 views

“Always Replace” (torque-to-yield) Bolts

I'm working on a VW Jetta and have pulled one of the suspension ball joints to replace a drive shaft. The three bolts holding the ball joint to the lower control arm are marked in the Bentley service ...
6
votes
3answers
66 views

What tire size will provide a softer ride and less oversteer?

I am currently tasked with replacing the tires on my grandparents 07 Jeep Wrangler X with a 225/75/16. To preface this, it will never go offroad! My mom drives my grandma around on Sundays to the mall ...
7
votes
3answers
8k views

How to reduce vehicle swaying (body sway)

I have a stock 2010 Acura TSX. I don't know what the official term is (maybe body sway) but I would like to reduce the amount of swaying it does as I'm going through turns, especially at higher speeds....
6
votes
1answer
94 views

Slow speed crunch/pop sound?

Having this issue that started recently. Hearing and feeling in the steering wheel and pedals crunch/pop sound when rolling slowly. On/off brakes doesn't seem to matter. In gear/off gear doesn't ...
3
votes
1answer
20 views

Installing Moog stabilizer / sway bar links on 2002 Ford Focus

I am installing both front sway bar links on my 2002 Ford Focus SE wagon. I ordered a pair of "MOOG K80066 Stabilizer Bar Link Kits". They did not come with any instructions, and I am totally new to ...
6
votes
1answer
779 views

How can I increase the ride height of my vehicle?

2001 Buick Regal It already has a naturally low ride height, And I feel like I've lost some over the years. The suspension is stock with the exception of new shocks I installed about 6 months ...
4
votes
0answers
17 views

Rough Undercarriage Ride

On my '09 Nissan Titan I get a rough rumbling ride/sound from undercarriage when I get to 40 mph. I have lots of rust issues underneath and lots around the rear drive shaft. Worried that the drive ...
5
votes
2answers
108 views

Thumping/Knocking noise coming from the rear (suspension?)

As of lately my car started to make thumping/knocking sounds whilst driving over speed bumps (at regular speed) I drive a 2001 renault laguna 1.8 16v with about 218,000km (about 135500 miles) on the ...
4
votes
1answer
40k views

How to tell if the Control Arm is bad too, or just the ball joint

I have a 1997 Ford Expedition 4WD truck that has a LOT of wiggle on the front left tire. I'm assuming that this is caused by a bad ball joint. Is that a safe assumption to make? Assuming that it is, ...
5
votes
1answer
42 views

Is Ackerman steering solved?

I heard of jeantaud mechanism of steering. does it accomplish the right steering everytime? aren't tyres slipping in any situation? I mean, is it the definitive solution to the Ackerman steering or ...
4
votes
2answers
337 views

My Ride is Still Very Bouncy after Changing the Struts and Strut Mounts

I just changed the front struts and strut mounts on my 98 Mazda 626. The old ones were completely shot. While I noticed an improvement in the ride, it wasn't nearly as much as I expected, and quite ...
4
votes
1answer
40 views

Dual suspension to monoshock

I have a Bajaj Discover 135 with dual suspension. I have seen some photos on Google of some people who have successfully done this conversion. Now my question is, what would be the steps to do this?...
5
votes
4answers
139 views

Damage to shocks over speed bump

There was a poorly marked speed bump on the way into the mall and I hit it going probably 15mph over the rated speed. It was a small speed bump (not those humps that induces rocking, ~1 feet in ...
6
votes
3answers
18k views

If one coil spring needs replacing, do I need to replace both?

I just had my car serviced and they discovered that the front, near side coil spring is "incomplete" and needs replacing. I'm getting conflicting advice about whether I need to replace both front ...
3
votes
1answer
35 views

What is this part on a 1997 Chevy Suburban (4WD) [picture inside]?

We have a 1997 Chevy Suburban, 4WD. Occasionally, when turning right (usually from a dead stop) there is a distinct "clunk" sound that comes from below the drivers side floorboard (with an equally ...
2
votes
1answer
23 views

What Springs do i need to drop 3"

My current springs have a rate of 360lbf/in and unfitted 420cm in length. Fitted to the car they are 350cm in length. What lbf/in do i need so that the car sits 3" lower ? I'm considering a spring ...
1
vote
0answers
34 views

Not an engine noise

I have a 01 Montero that has been making a reeking/squeaky type of noise coming from the rear of vehicle. I have lubed everything there is and have installed new shocks and air bags. Doesn't seem to ...
6
votes
2answers
100 views

How does hydropneumatic suspension perform vs conventional suspension?

My stock Citroen BX is equipped with hydropneumatic suspension. I have a ser of xantia suspension spheres mounted which brings the pressure up to 70bar vs the standard 45. My question is, how ...
5
votes
2answers
4k views

Which will have longer lifespan: stock or urethane bushings?

Background: this is in reference to the previously mentioned 2004 Subaru Impreza WRX Wagon. This isn't a track car: it's only for fun street commutes and general Daddy duty. The car has upwards of ...
-2
votes
0answers
58 views

Why do some 2 wheelers have an attachment to their fork [closed]

I've noticed some two wheelers. Non geared to be specific that they have a different fork. I am assuming this to be for protection. But did not find a lot of references.. Does anybody know if there'...
3
votes
1answer
36 views

Honda Jazz 2007 1.4 Dsi CVT

My Honda Jazz is in for 195,000 km service, Bosch service centre contacted me and said that my Control Arm Bushings are worn, but they need to replace the entire control arm as the bushings are not ...
4
votes
0answers
21 views

2000 Ford Taurus ABS reluctor ring grinding on lower ball joint

My Taurus started to make a grinding noise in the front. When I looked at it I could see the ABS reluctor ring was grinding on the lower ball joint. My plan is to replace the axles/reluctor rings, but ...
6
votes
1answer
144 views

Fixing vibrations caused by replacing springs?

I am slowly restoring a 2000 Jeep Cherokee Sport with 97K miles to use as a winter/light towing vehicle. I had some sag in my coil springs and leaf springs and the shocks were shot. So I had my ...
3
votes
1answer
120 views

How does mounting +1,+2 and +3 affect your vehicle? [duplicate]

The title is pretty self descriptive. It's common practice to equip your vehicle with bigger rims simply to achieve aesthetically pleasing looks. Although I'm against modifications exclusively for ...
10
votes
2answers
110 views

How Important Are the Rear Shocks / Struts

When people talk about changing the shocks or struts, it's usually the front ones due to comfort, handling and safety reasons. But what about the rear ones? How much of a problem are worn out rear ...
5
votes
2answers
89 views

Suggestions for refinishing suspension springs

Can anyone suggest a tried and tested method for refinishing suspension springs. The springs I have at the moment have shed their protective coating which I assume was some sort of powder coating? I'...
3
votes
1answer
50 views

Aftermarket Pneumatic Suspension - Pro's and Con's

I am trying to estimate the feasibility of installing an after market pneumatic suspension (called sometimes air bags suspension?) for a VW Tiguan. The Touareg, for example, has a factory optional ...
24
votes
7answers
110k views

Is it safe to drive a car that has a broken suspension spring?

Yesterday I was driving home from work and heard a loud noise which I can only really describe as a "clang". After looking at it today, it looks like the spring for the front left (passenger side) ...
6
votes
1answer
37 views

Should a suspension air bag be changed after so many miles?

I've referenced several manufacture sites (such as Firestone & Slam Specialties) to find any verbiage on their site's but I was unable to find if air bags for a hot rod should be changed after so ...
6
votes
1answer
57 views

Hydropneumatic suspension ride height

My Citroën BX has various ride heights since it works on hydropneumatic suspension. How safe / smart would it be to drive using the lowest height VS the medium ride height? pics for comparison
5
votes
2answers
85 views

Why is there a trend towards cantilevered rear wheels in recent motorcycle designs?

In looking at the new motorcycle designs that are coming out in roughly the last decade or so, there seems to be a trend towards the cantilevered rear wheel. My question is what are the advantages to ...
6
votes
2answers
804 views

2008 Jeep Wrangler - Suspension squeaks

The suspension on my 2008 Jeep Wrangler squeaks when I hit a low spot (maybe 4-6" from the grade), even at slow (<10 mph) speeds. Where can I lubricate or what should i check to eliminate this ...
0
votes
2answers
57 views

05 jeep wrangler rear sway bar connection is broken

05 jeep wrangler .The link that connects my rear sway bar to the rear end housing. What's it called. where can I buy a replacement. To be welded or fit in.
5
votes
3answers
311 views

Questions About the “Death Wobble”

I have a 1999 Jeep Wrangler (4 cyl) that has been infected by the infamous "Death Wobble". If this term is too slang then here is an article that can explain it better than I could hope to. I would ...
7
votes
3answers
1k views

Pros and cons lowering sedan?

Thanks to the community here I have successfully fixed my overheat problem, so I'm moving on to another problem...lowering the 95 camry. The method I'm planning on using to lower it is by adjusting ...
6
votes
1answer
74 views

Why are shock absorbers in wishbone suspension systems mounted on the lower control arm?

Is there any particular reason (relating to the sprung mass) for having this kind of setup? I am yet to see a wishbone suspension with the shocks on the UCA.
11
votes
1answer
197 views

Motorcycle Speed Wobble - How do I figure out the problem?

I have a 2005 GSXR 600. I took it for a test drive and the head shakes around 65mph or so and then goes away when I go past that. It's worse when I'm slowing down without the front brake. When I ...
10
votes
5answers
12k views

Is it better to drive across a speed bump at a right angle or slightly skewed?

I'm wondering if it is better for your suspension to drive across a speed bump at a right angle (so that the two front tires and the two rear tires hit the bump at the same time, respectively), or at ...
6
votes
1answer
929 views

Do springs wear out?

I will be replacing the struts and shocks on my car soon. I did them last about 80000 km ago, but at that time I did not replace the springs. Do springs wear out over time? Should I replace them ...
6
votes
1answer
53 views

Alignment and Lower Control Arm Bushings

I replaced my struts, strut mounts and tie rod ends, then went and got an alignment before taking my car to it's inspection. At the inspection, they found that the nuts for the tie rod ends hadn't ...
9
votes
3answers
171 views

Effects of sway bar stiffness on rough, uneven roads

I just read a really nice write-up on sway bar physics. I also watched a video discussing suspension behavior on rough roads. Let's assume the following: A front-wheel drive vehicle being driven ...
6
votes
2answers
5k views

Host of small performance problems in 2006 Hyundai Elantra

I bought a used 2006 Hyundai Elantra (Automatic) back in early 2011. At the time, I was needed to have a car quick, and it seemed like a good deal, but the longer that I've owned it, the more problems ...
3
votes
1answer
715 views

My ER6 was lowered to accomodate a shorter driver than me. How can I adjust the height?

I want to adjust the height of my Kawazaki ER6n from 2006. Specifically, I want to reset the height to factory settings. Is this something that's possible to do without hiring a certified mechanic or ...
1
vote
1answer
221 views

Car shudders above 45 mph after a spin out into a ditch

I spun out in freezing rain and ended up in a ditch. I was doing 60 down to 45 when it went all the way around and on to the shoulder, which was soft dirt and buried the front tires. My vehicle is a ...
7
votes
1answer
95 views

How bad is this strut mount damage?

I noticed a crack in the strut mount rubber of my 1999 Volvo v40. The suspension often creaks when going over speed bumps (and sometimes it doesn't) though I'm not sure it's the fault of this mount. ...
6
votes
1answer
115 views

When installing air ride suspension how is pinion angle set on the axle?

Saw we had a Motor Vehicle Stack and I thought it would be fun asking some hot rod related questions. One issue I've always faced in building a hot rod truck is determining how the pinion angle ...
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vote
0answers
42 views

Lower control arm mounting bolt replacement size. 2004 Mazda B3000

Need to know what size bolt for Mazda B3000 lower control arm mount
5
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0answers
37 views

Is a parallel 4 link safe compared to a triangulated 4 link?

After researching the topic the closest article I've ever been able to find was written by Ridetech: "What’s the difference between a triangulated 4 link and a parallel 4 link?". However, a concern ...