1987 Toyota Supra Twin Cam Turbo

suprasforlife · 07-28-2006, 08:49 AM

If the pump does not howl or squeel when you turn then your pump is probably ok. I had the same problem you described with my mkII. The power steering pump on the mkIII is the same I'm guessing, haven't ever compaired them. I replaced the pump, lines and the rack and still had the problem. There was only 1 part I did not replace, the fluid reservor. The problem was the screen/fliter in the bottom of the res. Take a small flat screw driver and scrape the screen, if a bunch of thick tar like crap comes out on the tip of the screw driver then that might be the problem. If you get a bunch of crap on the screw driver you have to pull the res off and clean the screen/filter, it does not come out (or at least mine didn't) I took off the res, scraped both sides lightly with the screw driver, took some degreaser blasted the crap out of it and then used an air hose to get all the degreaser out and the leftover chunks of crap out, blow through it both ways, bottom to top, top to bottom. I spent $500 and only needed to spend $3.99 on a can of degreaser and use about an hour of my time.

07-28-2006, 08:49 AM	#3
suprasforlife 3" Exhaust Join Date: Jun 2006 Location: Montana Posts: 71	Could be very simple If the pump does not howl or squeel when you turn then your pump is probably ok. I had the same problem you described with my mkII. The power steering pump on the mkIII is the same I'm guessing, haven't ever compaired them. I replaced the pump, lines and the rack and still had the problem. There was only 1 part I did not replace, the fluid reservor. The problem was the screen/fliter in the bottom of the res. Take a small flat screw driver and scrape the screen, if a bunch of thick tar like crap comes out on the tip of the screw driver then that might be the problem. If you get a bunch of crap on the screw driver you have to pull the res off and clean the screen/filter, it does not come out (or at least mine didn't) I took off the res, scraped both sides lightly with the screw driver, took some degreaser blasted the crap out of it and then used an air hose to get all the degreaser out and the leftover chunks of crap out, blow through it both ways, bottom to top, top to bottom. I spent $500 and only needed to spend $3.99 on a can of degreaser and use about an hour of my time.