Heavy steering

[2JZMKIV]

My friends 95 6 speed supra rz (j-spec) has xxr wheels 19 inch pirelli p zero tyres 245/40r19 steering wheel feels like a truck recently did alignment checked the fluid

its a lot heavier than mine

possible cause ?

[Mike2JZ]

The repair manual states the following, check over each point and confirm that everything is as it should be:

 

[Abz]

Almost if the feel of the steering fluctuate whilst you are turning then it might be an idea to check the crank pulley.

[Chris Wilson]

Put some pressure on the steering wheel, turning to one side, with the engine off. Start engine, does steering immediately lighten? yes? PAS is working, whether optimally is subjective. No? PAS is knackered, investigate pressures and belt slippage.

 

There's a solenoid valve in the rack that alters operating pressure under ECU control. Stationary and at low speeds the valve should be operating to increase PAS assistance. Above X MPH it slowly, by pulse width modulation, removes some amount of PAS assistance and the steering becomes heavier and less subject to light steering wheel inputs. This function may be faulty of there's PAS assist, but not enough when stationary or at low road speeds. I often see them not reconnected after an engine out, or the wiring and connector damaged.

[2JZMKIV]

thanks everyone its really helpful

[Guest RichardRobinson]

Almost if the feel of the steering fluctuate whilst you are turning then it might be an idea to check the crank pulley.

 

Yeah, I think that is the problem.