rangie suddenly pulls to the left or right

hi all

my rangie has a tendency to vere to the left only for a split second then its ok then it may vere right or left again no set pattern it does this while driving along any type of road, between 30-50ish mph. she is shod with 255x50x19 pirele scorpians on sport alloys the front two are good but the rears are getting low. the air supension works fine, brakes arent binding any ideas

If it's P38 ...as far as I know the Sport Alloys aren't all that compatible.. Esp as they're 19" unless you have some kind of mod as I think the bores are different? Get either P38 wheels on or L322 with self centering rings. As the P38 was never designed for these wheels i suspect you'll end up with a brake disc buried deep in the tarmac....and if the EAS fails you'll be scrubbing rubber on your arches. I think the 18" sport alloys run better on the P38.

P38 Rule of thumb...bigger the wheel ... the worse the ride.

Even the stock 18's make the suspension a bit twitchy.. especially if tyres are low on tread.

Much, much better on 16's... most people seem to find it so. Which is why I'm getting shut of my 18" Hurricanes soon and fitting 16" modular steelies with A/T tyres...

Of all the things I did to cure my death wander, adjusting the lash out of the steering box had the most significant effect. To check it, get someone to rock steering wheel side to side, whilst watching steering box input shaft and feeling under the box for output shaft / drop arm movement.

Wheels & tyres and also tyre pressures are very critical on the P38, search Tramlining you'll find loads of threads. Worth checking drag link end track rod ends.

Mine did the same when i got it, for some unknown reason the Steering Damper was detached, reconnected still little wander -
New tyres and nearly cured - adjusted pressure to 31/32 - 34/35 and rock solid on 18"
The factory recommended 28 - 38 psi doesn't work for me (coming from bmw's where the pressure always was the same front and back)

Check that the steering box is properly centralised. Have the tracking done. Then start playing with tyre pressures. Unless the track is set parallel, if you fit larger or smaller wheels it changes the track setting.

thanks for reply thats very helpfull. the wheels were already on the rangie when i got it
the previous owner had just parked it in a corner of a farm yard after losing interest she had stood there for nearly two years neglected covered in chicken crap, engine runs sweet on petrol or gas, interior is all good except for door piller trims which look like someones attacket them with a wire brush, rear bumper has two ripples on top
a great vehicle

nutrunner said:

thanks for reply thats very helpfull. the wheels were already on the rangie when i got it
the previous owner had just parked it in a corner of a farm yard after losing interest she had stood there for nearly two years neglected covered in chicken crap, engine runs sweet on petrol or gas, interior is all good except for door piller trims which look like someones attacket them with a wire brush, rear bumper has two ripples on top
a great vehicle

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Just because wheels were on car when you got it does not mean track has been adjusted to suit them.

wammers said:

Just because wheels were on car when you got it does not mean track has been adjusted to suit them.

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It's a beam axle, how does changing the wheels affect tracking, bearing in mind the rolling radius is the same for the 16's and 18's

Datatek said:

It's a beam axle, how does changing the wheels affect tracking, bearing in mind the rolling radius is the same for the 16's and 18's

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He has 19" wheels Keith. It would make a difference.

wammers said:

He has 19" wheels Keith. It would make a difference.

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OK, tell me how? The tracking is done with a rigid link between the steering arms, the axle is rigid so the relationship between the hubs and the axle and track rod is fixed, raising or lowering the ride height via the EAS does not affect the tracking so why would a different wheel diameter affect it?

Datatek said:

OK, tell me how? The tracking is done with a rigid link between the steering arms, the axle is rigid so the relationship between the hubs and the axle and track rod is fixed, raising or lowering the ride height via the EAS does not affect the tracking so why would a different wheel diameter affect it?

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Raising or lowering the body can't effect track. However tracking is good anywhere between 0.06 mm and 1.80 mm toe out. It is better with larger wheels, above the standard 16" or 18," to set it nearer to the 0.6 than the 1.80.

I spent 24000 miles trying to sort out my front suspension on my Disco2
255/55/18s It had the same sort of problem, it would pull to one side or the other just for half a second.
Keeps you on you toes!!
Wore out the pirelli scorpion str and replaced with Uniroyal something or other and the problem disappeared. Two days later I read on here the pirelli str is prone to this