Toyo 1HZ power steering problem at idle
Submitted: Tuesday, Aug 19, 2008 at 21:33
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shorns
Hi,
My landcruiser 1HZ's power steering seems to fail at idle revs, if i'm going real slow and put the clutch down i loose my power steering (but am building good arm muscles). Is this likely to be the pump giving out or simply not enough revs to power it? Is it a common problem? unfortunately i don't have a tacho so it's gonna have to go to a mechanics to check that out.
Ta! Sean
Reply By: Member - Doug T NT - Tuesday, Aug 19, 2008 at 21:49
Tuesday, Aug 19, 2008 at 21:49
Check the Oil, might need some.
.
AnswerID:
321337
Follow Up By: shorns - Tuesday, Aug 19, 2008 at 22:21
Tuesday, Aug 19, 2008 at 22:21
It was serviced 2500k's ago and just checked, oil and PS fluid are full, wish it was that simple!
FollowupID:
588187
Follow Up By: Member - Dennis P (Scotland) - Wednesday, Aug 20, 2008 at 02:16
Wednesday, Aug 20, 2008 at 02:16
If your oil levels are OK then it is most probably the pump.
FollowupID:
588208
Reply By: Member - Troll 81 (QLD) - Wednesday, Aug 20, 2008 at 05:12
Wednesday, Aug 20, 2008 at 05:12
might be time for a flush
AnswerID:
321357
Reply By: Member - Roger T (SA) - Wednesday, Aug 20, 2008 at 06:30
Wednesday, Aug 20, 2008 at 06:30
hi check that the harmonic ballancer nut is tight as the pump as i understand it is driven off the crank and is not key'd to it on some engines.
AnswerID:
321359
Reply By: traveller2 - Wednesday, Aug 20, 2008 at 08:15
Wednesday, Aug 20, 2008 at 08:15
Change the fluid first, sometimes amazing what affect it has.
If they changed the fluid at the last service (unlikely) then it may have a bit of air in the system and need 'bleeding'
This is done by jacking both front
wheels off the ground on stands and going from lock to lock a dozen or so times with the engine off and then the same again with the engine on. Check fluid levels during this exercise.
AnswerID:
321367
Follow Up By: Tippa - Wednesday, Aug 20, 2008 at 09:44
Wednesday, Aug 20, 2008 at 09:44
Flushing with new fluid is always a good idea, and fixes most noisy power steering probs, but i doubt it has anything to do with one not having enough pressure at idle.
As for bleeding, lock to lock turning on the ground is usually good enough. If you have been driving then i'd be confident there is no air in the system.
What i'd do is have a look at the condition of your oil. If its red with no metal particles in it then i wouldnt worry about flushing it. Then i'd go and get someone with a timing light to check the revs at idle.
My thoughts are if its not noisy then your revs are just too low for it to build up enough pressure.
Being a diesel (from my understanding) as your diesel pump wears out your revs at idle gradually drop??
FollowupID:
588226
Follow Up By: ross - Wednesday, Aug 20, 2008 at 11:52
Wednesday, Aug 20, 2008 at 11:52
If its making a hydraulic groan or squeal ,the stator made be "varnished"
Some of the PS pump reconditioning fluids work
well,I dont normally recommend additives but I was advised by an expert.
Wynns or Lucas
The other likely problems hve all been mentioned such as loose belt and low idle speed.
New pumps on ebey are $44o last time I looked.
I had
mine rebuilt a few back and still ok after 30000klm.
The vanes on the rotor were ok but an oring has worn a sllight groove in the shaft and needed a polish on a lathe
FollowupID:
588244