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[feeutfo]

i've had servo tronic fail, its a totaly random thing going stiff at any speed and the relay is behind the glove box.

i would think the low revs showing the fault and the fact its belt driven would point to a tired worn out pump, raise the revs and it starts working/pumping enough fluid to operate the pas, drop the revs and its out of range of its operation due to ware?

but i've not had a pump fail so would be nice if someone would confirm....

[alfie]

Well its worked perfectly since I changed the battery,so I,m not going the knock it.
My last car before I got the mig was  a Subura Legacy,what a car,go any place great in the mud or snow ,but so expensive to run.Had for 7 years,only let me down once camshalf sensor,Sold within 30 mins after I put it in a layby with a for sale sign on it.
                  Regards Alfie

[goonv6]

How much does a servotronic relay cost out of interest. (Might just be worth doing)

[feeutfo]

How much does a servotronic relay cost out of interest. (Might just be worth doing)

ooh, memory time, twas a while ago, with tech2 to diagnose it first i think it was £86 ish through a dealer, this was pre forum days mind, and i would certainly not recommend that route now.

See a tech 2 owning member on here to diagnose first, then if faulty get a relay from a breaker, its not a common failure so they should be 2 a penny i would think...? bit of a head stand to swap though.

[alfie]

Hello Lazydocker,If the mig is purely mech/fluid power steering whats the wiring harness connected to it for.

FFCGARY1 has just posted about a servotronic relay,so I ,II ask him to explain it a bit more.
             Alfie

[alfie]

Hello Ffcgary1,Please could you explain what this servotronic assistance relay function is,what it looks like,and exactly where it is.
Is it likely to be the cause of heavy steering at low revs and such like.
              Regards Alfie.

[Entwood]

Servotronic is a way of changing the "weight" or amount of assistance given to the steering with relation to speed. At low speed the assistance is high, at high speed it is low as you only need tiny amounts of steering input.

The ABS ECU uses the speed signal derived from the ABS sensors to control the power steering assistance level.. which is why when you lose the ABS ECU you lose power steering.

Thats why you have a wiring harness !!!  to carry the electonic signals