Hi guys, i've got a problem with the engine under-tray on my 2006 2.8 Voyager. Every time i drive over speed bumps even the slightest bump it scrapes and it does it hard,The thing is already broken on few places..... Do i have strut/spring coil problem and the front end sits too low? Has anyone experienced it? Any help appreciated.

Thanks John

 

Funny you should mention this! I am having the same problem with my GV 2.8L XS 2007 year car! I changed both the front shocks and springs about 2 months ago. I got the Mrs to dtive over a speed bump and could see that the the under tray is catching. Seems like its got middle aged spread and its gut is hanging over its trousers!

1st thing I did was to check the tyre pressures! They were low on the passenger side @ around 27psi. So pumped all them up to 36psi. Not had much chance to re check everything out yet. Take a look at your shocks for any leaks! Do a MOT bounce test.

Be interesting to hear if others have had the same thing! The car does sit very low when looked at from underneath.

 

Sue the council in the small-claims court for damage. If everyone did that these often ridiculous speed-bumps would disappear prontissimo.
There are actually TWO speed bumps assys. in what is a car park behind my house. How can one have respect for that kind of thing? What a waste of council tax-payers money.

Talking about waste, I wonder just how much extra pollution is created by drivers having to slow down pointlessly for them when driving conditions don't warrant? I reckon many tons of carbon dioxide would be saved nationally, and all over the world many thousands of tons.

I'm not even going to mention worn out shock-absorbers, damaged steering joints, et al, which all leave a carbon footprint behind from their manufacture. I'd bet all the carbon-dioxide saved by electric cars is eventually being wasted by all the hundreds of thousands of speed bumps around us.

Would some kind STATISTICIAN please work out what the carbon-dioxide situation really is with speed-bumps? You will have my eternal thanks.

Leedsman.
p.s. If your motor is riding low, probably the easiest fix is to fit higher-profile tyres.
p.s. #2. Suspension ***** in the coil springs make an amazing difference to ride-height. I've used hard rubber play-***** (for dogs) got from a pet shop, although you can get the proper thing from caravan dealers. Some nifty work with a hacksaw on the hard rubber ball making a shallow V-cut will ensure the ball doesn't come out of the spring's coil. Use a jemmy to force it in the bottom coil while jacked up. You can get up to 2" extra ride-height this way. I've never had any trouble from these. The coil spring is well inboard of the wheel, so only half an inch gained in the spring translates to a full inch or so at the wheel.

 

Very well said Leedsman. All these stupid speed humps are a pain in the ****! Costing us all money that we don't want to send!

 

Hmm.. I was just experiencing the opposite and was thinking about that..
My GV is a very heavy car and I was surprised I could run over speedbumps almost without slowing down and still not hitting anything

I was wondering how that was possible and came up with the following:
My GV is factory rebuild as a "cargo car" meaning it's a two seater now and all chairs in the back are removed and the cargobay created while the rest of the car is exactly the same as a "normal" GV. But altogether its a lot lighter due to removing all seats in the back.
My GV has the "towing option" so maybe springs are adjusted? I know it has the rear swaybar as an extra already..
Finally, My GV has 17"alloy wheels, I understand standard sizes are 15" or 16"

So simply remove all seats and add 17" rims and '65' tyres

 

I did checked for oil leaks but all good and dry.The bounce check is ok..tire pressure a bit low but i don't think will affect it that much with the scraping i hear, it is out right nasty and every time i hear it i wanna sue....

Alright, it seems i've got a task ahead of me. I decided to change both struts and use Leedsman's trick on the coil springs.Tire replacement are no go as i just put new rubber on the wheels. Leedsman will these work?

http://http://www.towsure.com/produc...Assisters_prod

P.S. Can any of you guys measure from the center bottom of the fender to the center of the wheel hub , mine is 16.3 inch (41.5 cm)

 

I just measured mine: 45cm or 17.7"
That's with 17"rims and 65 height tyre