Fg Turbo - Severe Axle Hop

[howesy]

Since new (now 5000km) my FG if it breaks traction gets severe axle hop with a series of extremely loud bangs in rapid succession coming from the rear axle.

This happens in the wet or dry and also happens whether the traction control is on or off.

Is this normal or have I got dud shocks or stuffed bushes. Also a decent amount of driveline backlash as well.

While I'm at it did any one notice a performance dive after the 300km service check I wonder if they do an ECU upgrade and stuff it seems very ordinary since then especially low revs.

Cheers

[xr6t4life]

I doubt they would change the ecu settings it would most likely just be the heat these cars loose a lot of power in hot weather if u have a better intercooler you wont notice it as much.

as for the axle tramp a harder set of springs and decent shocks will stop that, my bf has always done it until I changed the springs and shocks

[Bomber]

He He, standard on an FG! There are heaps of threads about this one mate so won't repeat it all. Long story short - the OEM diff bushes are sh*t (too soft) and shocks not much better at stopping rebound. The 'thump' you hear is the diff flogging around in the craddle. Not nice, I know, and will eventually tear the bush out - lock it in eddie! More power helps (true) as does springs and shocks. My car has just clocked 8000k and when the bush sh*ts I'll be fitting the Superpro 'turbo' version which doesn't tear out and unlike the nolathane one, doesn't increase noise. It stiffens the diff up and fixes it once and for all. Cheers, Bomber.

Edited 14/02/11 07:01 AM by bomber

[howesy]

So basically its the same as my last new ford, another half a@s%d designed and manufactured product and I need to either suck eggs and spend money from my own pocket to fix it or keep taking days off work losing money to get warranty work done which is probably either not going to solve it or have it re-occuring. Been buying Fords for 30 years but honestly they see to be getting worse at it.

Thanks will consinder just doing the superpro do you remember what the cost was quoted

Edited 15/02/11 11:05 PM by Dagabond
Quote removed....

[Bomber]

My first Ford for ages so yep, I'm herin ya! If it's stock then warranty but it won't fix the problem. Unfortunately, mine is tuned so denied! They seem to sh*t around the 30000k mark but some have gone earlier. My rear end already feels 'floppy'(at 8000k) but the bush isn't torn. Seemed to go that way after a couple of 'thump thump' sessions before I found out what it was. Funny though, since the tune it's better and I go easier on the initial launch now (auto). Easy fix? Well, the superpro bush is under $100 but you have to drop the whole craddle to fit it then do a rear alignment. Ford - forget it. Pedders around $400. Time over, warranty intact, I would have bought the superpro bush and demanded Ford remove the rubber piece of sh*t.

[senna_T]

Well, the superpro bush is under $100 but you have to drop the whole craddle to fit it

that's not entirely true, the cradle only has to be lowered partially if you are only changing the centre bush

[chook]

MORE POWER FIXES IT!!!!

[Guest XR09]

+1 for more power ha ha

Actually more rebound dampening would help. The std shocks ae good for pumping up pushbike tyres.

[Bomber]

that's not entirely true, the cradle only has to be lowered partially if you are only changing the centre bush

Agree, but fully/partially out it's the same outcome - alignment required. So even if handy with the spanners, you still need to take it somewhere.

[dre]

So this explains the floppy rear end of the car. What part/s exactly should be replaced?