Well in my case the groan does not come directly from the pump. It sounds like the pipes, further forward where they disappear at forward end of engine compartment. That is not to say that the pump is not creating conditions that cause the pipes to make noise, but to be clear the pump itself is not groaning. I'm suspecting some sort of isolating mount has come adrift or the pipes have moved/been bent so that they are vibrating on something. alistair
On 2011-12-14, at 9:04 AM, John Rodgers wrote: > Alistair, > > I have a similar problem. Systems works fine, have a brand new "Known Good" rebuilt pump with a full warranty - and it still groans like the pump is dying. Checked the lines and flushed thoroughly, installed new filter and refilled with fresh clean AFT - still it moans and groans. I think its my power steering rack gone bad gone bad somehow. Though it's only been three-rour years since replacement - I have bought another factory rebuilt one from a list vendor. Haven't had a chance yet to install it. Will flush the system again just before installing the new one. Don't want any metal to go through the new one. Will post the results when done. My power steering has been a real PITA on my vans. Have had to replace the pumps or the racks on all three. $$$$. > > John > > John Rodgers > Clayartist and Moldmaker > 88'GL VW Bus Driver > Chelsea, AL > Http://www.moldhaus.com > > > On 12/13/2011 9:35 PM, Alistair Bell wrote: >> I've had a groaning noise in my '86 syncro's power steering ever since I bought it. The location of the noise was hard to find, wasn't the pump, seemed like the metal pipes, where they go forward out of the engine compartment. I just lived with it, got used to it. I did flush the system for fun more than anything. >> >> Today I listened to the pump again and noted (using screwdriver stethoscope) that the pump was making a noise like a bad bearing. I have a spare used one, so I swapped it in. It is so easy to make the swap in the van, almost a pleasure. After the swap the "bearing noise" was gone, but the groaning remains. >> >> Apart from the noise, the system works fine. I now have to try some rubber wedges or the like to see if I can dampen any steel line vibrations. >> >> Not a very informative post, so it goes. >> >> alistair >> >> > |
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