Okay, I kind of just went through this.
I had my engine out over the summer for replacement. It might be noteworthy to add that I replaced the high pressure hose while everything was out, it was leaking - but you didn't mention any leaks. Anyway, all these months later during cold Winter temps, she started squealing and would sometimes have choppy steering if I had my foot off of the gas while turning. It too, got better once warmed up. I was convinced the pump finally let go. But, having faith in her at 150k miles, I poked around.
First, the fluid was a little low. With the car cold, I topped it off to the COLD line on the reservoir. It helped a little, but she was still screamin'.
Second, I checked the drive belt tension (trying to avoid adjusting the P/S belt). My drive belt was a bit loose. Tightened that, and it was about 50% better! However, it still squeaked at idle in drive, and it still made the sound of a pterodactyl when turned to full lock.
Third, (ugh) I checked the power steering belt. Yep, it was loose too - and worse than the drive belt. This part is a pain, and hopefully I can save you a bit of trouble. You have some members that say you only need to loosen the lower adjuster bolt to adjust the tension, and you have some that say you need to loosen both the lower adjuster bolt AND the pivot point bolt at the top of the pump. In my case, oooooof course, I had to loosen the top pivot point bolt, which sucks to get to.
(At this point in time, I wonder if leaving the top bolt slightly loosened would make this easier down the road, but I can't remember if there are other bolts holding the pump in place).
Okay, so.. to continue on the P/S belt adjustment - before I continue, let me say that if you are planning to replace the power steering belt, you will need to remove the drive belt first, as the power steering belt is behind the drive belt on the water pump pulley. Jack up the front right side of the car, enough to remove the tire once you set the car safely on jack stands. You're going to need to be under the car for some of this, so put the car on stands and the jack next to it as a failsafe. Remove the front right wheel, set it aside with your lugs. At the bottom right of your pump you will see the adjusted bolt, it's kind of in between the bottom of the pump and timing cover, I think it's a 10mm. Loosen that, see if you can adjust the pump. If not, you have to remove the pivot point bolt above that.
Pivot Point Bolt AKA the son of a b!*ch pain in the a#$ bolt - This bolt is just about directly above the adjuster bolt, and a little to the left. If you look up there with a flashlight, you will see a 12mm bolt for an engine bracket almost directly up from the adjuster bolt. To the LEFT of that bolt is the 12mm bolt you are looking to loosen on the pump. I tried laying down lengthwise along the car and reaching up, but it was a pain. I found the easiest way was to sit on the floor facing the front right wheelwell, and reaching up with my hand in a vertical "high five" position to feel around for the right bolt. The problem here, for me at least, were my craftsman sockets. The regular 3/8 drive sockets weren't deep enough to reach the bolt without the wrench getting stopped short by the power steering belt. The 3/8 drive deep sockets were too big to even get the socket and wrench up there. I grabbed my 1/2" drive 12mm socket, which is just in between the sizes of the 3/8" standard and deep sockets - perfect! Feeling up there for the bolt with my left hand, and guiding the socket with my right, I got it on the bolt and broke it loose. Then I grabbed the pry bar (the longest one out of my 3 piece set) and was able to get it in a good position near the lower adjuster bolt. Still holding the socket on the higher pivot point bolt, I switched it to tighten, laid my shoulder into the prybar and tightened down the bolt. Twisting the belt by hand, it would go about 1/4 turn, which is good tension for me! Tighten the lower adjustment bolt, put the wheel back on and that's it.
Somehow my posts tend to end up as novels, but hopefully the extra detail will save you the hour headache of trying every socket, drive, and angle to get at that gem of a bolt.
Last edited by evilws6; 01-20-2017 at 05:40 AM.