Rob Posted May 8, 2003 Share Posted May 8, 2003 As I was due to pick up my new rear tyres today, I decided to shred the old ones. Whilst performing an extended doughnut the power steering packed up. No warning lights are on, no hoses are loose, no fluid is leaking and the belt is still on. Any ideas? Does the pump have a motor? Link to comment Share on other sites More sharing options...
Thorin Posted May 8, 2003 Share Posted May 8, 2003 No idea, but I hope the same doesn't happen to mine, I'd planned on doing the same thing before I get my new tyres next week Link to comment Share on other sites More sharing options...
Branners Posted May 8, 2003 Share Posted May 8, 2003 I have heard of an autobox basically melting itself when soembody was doing extended doughnuts, be very sure you have a well service auto box if you want to give this a go. And yes, there is a power steering pump but never heard of it failing just like that, normally throws up a load of noise before hand. JB Link to comment Share on other sites More sharing options...
Rob Posted May 9, 2003 Author Share Posted May 9, 2003 Bugger me, if it didn't just work as normal this morning!!! Link to comment Share on other sites More sharing options...
jjgage Posted May 9, 2003 Share Posted May 9, 2003 The exact same happened to mine last year while I was doing a huge doughnut at Crail, infront of loads of people and the fastcar cameras, i just couldn't help myself on the oval ring. Anyway it turned out that it was the valves in the pump that had completely worn down because of the doughnut action. had to get the pump reconditioned but its still not working right so i'm taking it back to get fixed next week. Cost me £180 to get it sorted, and i was quoted about £430 from Toyota for a new one. I suppose if there was a way of temporarily disconnecting the pump then burnouts on old tyres wouldn't be a problem, is there an easy wasy of doing this? Jonny Link to comment Share on other sites More sharing options...
Rob Posted May 10, 2003 Author Share Posted May 10, 2003 Now it's cutting in and out all the time. I'll be popping into Toyota on Monday. Link to comment Share on other sites More sharing options...
dude Posted May 10, 2003 Share Posted May 10, 2003 Not something to do with the speed sensor is it , the widget thingy that tightens your power steering as speed increases , i wouldnt hold out a lot of hope of toyota sorting it out . John:flame Dev Link to comment Share on other sites More sharing options...
mos Posted May 10, 2003 Share Posted May 10, 2003 No the pump doesnt have a motor but it does have a solenoid operated control vv which is what gives you the varying stifness, the solenoid is situated on the steering rack and takes its signal from the power steering ecu which in turn takes its signal from the speed sensor. I hope to god that you havnt burnt out the solenoid as its £330 + vat from toyota and most scrappies wont split the steering rack to give you the vv. If you want i can give you a few tests to run first to narrow the problem down. Link to comment Share on other sites More sharing options...
supra dan Posted May 10, 2003 Share Posted May 10, 2003 why would doing a donut break the steering? Link to comment Share on other sites More sharing options...
mos Posted May 10, 2003 Share Posted May 10, 2003 Find it hard to understand myself unless its a full lock thingy Link to comment Share on other sites More sharing options...
mos Posted May 10, 2003 Share Posted May 10, 2003 sorry update: when the steering is at full lock the pump produces most pressure so this is when most strain is on the sytem and if this is done for an extended period then who knows. Link to comment Share on other sites More sharing options...
supra dan Posted May 10, 2003 Share Posted May 10, 2003 yeah sounds right enough Link to comment Share on other sites More sharing options...
Rob Posted May 11, 2003 Author Share Posted May 11, 2003 That would be it. Most of the time I was yanking the wheel over, then it dawned on me to just hold it off full lock, but the damage had already been done. What tests, by the way? Link to comment Share on other sites More sharing options...
mos Posted May 11, 2003 Share Posted May 11, 2003 mainly resistance tests through the solenoid and ecu (power steering) and also a full power test on the solenoid, if you are happy/ have a tester then i will dig out the page in my manual and post it. Link to comment Share on other sites More sharing options...
Rob Posted May 11, 2003 Author Share Posted May 11, 2003 I see. I don't have a tester, but the car is going into Toyota tomorrow, so I'll see what they say (and quote) first. Thanks. Link to comment Share on other sites More sharing options...
Rob Posted May 12, 2003 Author Share Posted May 12, 2003 The man from Toyota, he say "new Power Steering Rack", so it sounds a lot like Mos's solenoid gone kaput to me. No price yet from Toyota, but based on the above at £330. Thats means my 2 minute burnout cost £330, or £9900 an hour of fun. Has anyone spent more than this for "fun"? Link to comment Share on other sites More sharing options...
mos Posted May 12, 2003 Share Posted May 12, 2003 My quote was just for the solenoid vv not the full rack sorry if i misled you so it may be higher, think about jap-parts or celica supra breakers first it may be a lot cheaper Link to comment Share on other sites More sharing options...
mos Posted May 12, 2003 Share Posted May 12, 2003 If they do change your rack and vv together what would you do with your broken one, if you are just going to bin in then i will give you something for the solenoid vv as i would like to get one apart and see how hard it would be to refurbish one of these units. Please let me know either way. Link to comment Share on other sites More sharing options...
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