Evening all , first post in this thread but not on LC forums .....;-)
I have a 96 24v Landcruiser 80 that suddenly developed a power steering problem.
It has a 2 inch full OME lift with caster correction and fitted with 285 /75/16 BFG K02's.
All was fine until I stopped at a garage to put some air in a slack front tyre , checked pressure in the tyre's restarted and as I drove up the road the steering felt "strange" but as we were in Devon on holiday didn't investigate beyond visual inspection and wheel wobble /pulling on track rods etc , the 250 mile drive home was interesting as the steering showed a lack of self centring and was stiffer than normal.
I have checked steering fluid and pipes etc all are good.
The steering is speed sensitive as all those who have 80's will know.....now this is where I start to get puzzled, at start up and tickover with no movment the steering is light and as it should be , it seems directly I start moving the variable solenoid is being told to go to the fully stiff position which is from the W/shop manual with the least voltage supplied from the ECU , I think I have confirmed this by disconnecting the soleniod on the steering box and the steering is stiff , reconnect and at least while stationary the steering returns to how it's always been at tickover when not moving.
Anyone else had this issue ? where is the steering control ECU located ? my w/shop manual is for the earlier 12v so not sure if it was moved .
The only other cause could be the speed sensor but the speedo reads correctly and is rock steady.
As the problem developed suddenly and after a stop /start I'm thinking it's electrical and unlikely to be a bad connector or rubbed wire ....do the ECU's fail ? it seems they work on resistance so a resistor gone down would cause this .
Good to see some familiar names on here from another my past on another forum where little happens ;-) .
Any thoughts /ideas appreciated
Grimbo
I have a 96 24v Landcruiser 80 that suddenly developed a power steering problem.
It has a 2 inch full OME lift with caster correction and fitted with 285 /75/16 BFG K02's.
All was fine until I stopped at a garage to put some air in a slack front tyre , checked pressure in the tyre's restarted and as I drove up the road the steering felt "strange" but as we were in Devon on holiday didn't investigate beyond visual inspection and wheel wobble /pulling on track rods etc , the 250 mile drive home was interesting as the steering showed a lack of self centring and was stiffer than normal.
I have checked steering fluid and pipes etc all are good.
The steering is speed sensitive as all those who have 80's will know.....now this is where I start to get puzzled, at start up and tickover with no movment the steering is light and as it should be , it seems directly I start moving the variable solenoid is being told to go to the fully stiff position which is from the W/shop manual with the least voltage supplied from the ECU , I think I have confirmed this by disconnecting the soleniod on the steering box and the steering is stiff , reconnect and at least while stationary the steering returns to how it's always been at tickover when not moving.
Anyone else had this issue ? where is the steering control ECU located ? my w/shop manual is for the earlier 12v so not sure if it was moved .
The only other cause could be the speed sensor but the speedo reads correctly and is rock steady.
As the problem developed suddenly and after a stop /start I'm thinking it's electrical and unlikely to be a bad connector or rubbed wire ....do the ECU's fail ? it seems they work on resistance so a resistor gone down would cause this .
Good to see some familiar names on here from another my past on another forum where little happens ;-) .
Any thoughts /ideas appreciated
Grimbo