bodilx6 Posted March 16, 2011 Share Posted March 16, 2011 I had a PS pump screeching a lot when starting cold. Not when it was under load, just @ idle. It would dissappear when it warmed up. I purchased a cheap used one, replaced the old one and have exactly the same problem. Am I just unlucky or could I have another issue? It is not the cranck pulley, did the tippex test and it is clear that the screeching comes from the PS pump or very very close to it. Also, should I worry about running it until getting it fixed? If it is running without symptoms when hot, I'm guessing (hoping) the problem isn't too bad as I'm going to the nürburging in a few weeks time... Again, I'm not having any sounds when it pump is under load, i.e. turning the wheel. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 16, 2011 Share Posted March 16, 2011 Some auxiliary belt makes are noisy. My supplier changed brands and I had to get them from somewhere else as the ones he was supplying did this. If it is another noisy pump you could send me one to rebuild. New bearings and seals, new rotor assembly and a full clean and check over is £150. Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted March 16, 2011 Share Posted March 16, 2011 Does it screech when the aircon kicks in? ie putting more load on the aux belt? Have you checked the idler? Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted March 16, 2011 Author Share Posted March 16, 2011 Some auxiliary belt makes are noisy. My supplier changed brands and I had to get them from somewhere else as the ones he was supplying did this. If it is another noisy pump you could send me one to rebuild. New bearings and seals, new rotor assembly and a full clean and check over is £150. The belt is a new toyota belt. It *could* be the belt if the sound it makes comes from the PS pump area. I will check with a stethoscope soon. That, I'm guessing, will tell me if the sound is from the pump itself. I'm thinking about sendind it over to you, Chris, but I just found out that it looks like I can get a completly new pump from the US for 300$. I'm awaiting confirmation and delivery times. That would probably be the easiest. Otherwise, I have the old one, I could send to you. Does it screech when the aircon kicks in? ie putting more load on the aux belt? Have you checked the idler? The sceeching intensifies when the A/C kicks in. But that just seems to be due to the increase in revs. Just as if I open the throttel a bit. I will try to get a video later. - but what is the risk of running it? Again, if its sounds perfectly happy after a few minutes.. Quote Link to comment Share on other sites More sharing options...
seba Posted March 16, 2011 Share Posted March 16, 2011 Well i had exactly the same problem about a half year ago. the screeching went up with the revs, the noise came definitely from the pspump or veryvery close to it. I wanted to change the ps pump so took the auxiliary belt of, then i realized i was not in the mood to do the job. So the next day i just put the auxiliary belt back on and the screeching was gone, not a new belt, just the old one and the car hasn't made the noise since then. Now am i not a great mechanic? Quote Link to comment Share on other sites More sharing options...
seba Posted March 16, 2011 Share Posted March 16, 2011 http://www.mkivsupra.net/vbb/showthread.php?225959-Ticking-in-front-of-engine-bay[/url] Here's the link to the thread that i started back then. It's probably just the belt as the problem you describe is exactly what i had going on. Not that you are going to find anything usefull in the thread as the guys only make jokes about it not being fixed the way i did it but it hasn't made the noise anymore Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted March 16, 2011 Author Share Posted March 16, 2011 Looked at your thread. You describe a "ticking" where I have more of a screech, like "iuu-iuu-iuu-iuu" per revs of the pump pulley. Sounds exactly like a worn belt, but I don't think it is. Mine also stops after a few minutes where yours apparently kept going. I will try and remove the belt, but I did have it off (or rather loosened) when replacing the pump the other day.. Looking for an indication on if it is safe to run the pump... Or maybe that will be clearer if I post a video later today.. Quote Link to comment Share on other sites More sharing options...
Scott Posted March 16, 2011 Share Posted March 16, 2011 Spray some grease on the belt and see if the noise goes away, if it does it is the belt IMO. If it doesn't then start spraying the grease on the bearings of the various components to see when the sound goes away. Quote Link to comment Share on other sites More sharing options...
kirvis Posted March 16, 2011 Share Posted March 16, 2011 change the belt mate, that helped me twice already Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted March 17, 2011 Author Share Posted March 17, 2011 Belt change worked out. Thanks a lot guys!! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 17, 2011 Share Posted March 17, 2011 Never known an OE belt be noisy. If it comes back it's probably the bearings in the pump. Taking the tension off the pulley for a while when you changed the belt may have allowed some oil into the bearing and it's gone quiet again for now. Good luck!! Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted March 18, 2011 Author Share Posted March 18, 2011 Spooky, coming from you, Chris. I hope you are wrong ;-) - had a 20 mile drive wednesday and started it today. Still good. I hope it will stay that way... Belt was OEM and new belt is the same manufacturer but not bought at Toyota. That shouldn't make a difference though. Old belt had max 5000 miles on it or so.. Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted March 18, 2011 Share Posted March 18, 2011 make sure the o ring on the intake side of the pump is not perished/baked I had this on mine caused it to drag air in an make a racket Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted March 21, 2011 Author Share Posted March 21, 2011 make sure the o ring on the intake side of the pump is not perished/baked I had this on mine caused it to drag air in an make a racket Thanks, it looked good when I changed the pump the other day Quote Link to comment Share on other sites More sharing options...
Iky Posted March 21, 2011 Share Posted March 21, 2011 make sure the o ring on the intake side of the pump is not perished/baked I had this on mine caused it to drag air in an make a racket Do you by any chance have any photos of this? showing where its located Quote Link to comment Share on other sites More sharing options...
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