Just curious how much success you guys have had getting rid of the "growling" of power steering pumps on Internationals. I have a few that starting to get worse and I have chenged fluid and filters which helps a little but not totally. Is it the pump and does it really harm anything? I hate to start dumping several hundreds of dollars on pumps if that doesnt cure it or if its not harmful like it is. Thanks a bunch.
We have four international chassis with different engines. We have not had any PS issues or noise. The only growler i had is on my personal ford pick up / intl 7.3. I got some info from a ford tech years ago, it involved removing and drilling a passage larger and a fluid change and the problem was solved. This also solved the micro second loss of steering when braking at tight turns like pulling into my driveway. Remember the steering on the ford diesel truck is powered by the brake booster.
Well it seems a lot of trucks and buses have this issue and no one seems to know how to fix it. I talked to several people thta replaced pumps, steering boxes, king pins etc. I had a guy tell me today to flush the system and re-fill with 15w40. Have ant of you guys tried this or heard of it being done....? That oil seems a little thick to me