Farino81

iTrader: (1)

I have a sc400 and every morning when i start the car i hear this buzzing noise coming from the ps pump and then after it warms up it stops. I know this usually means the pump is going bad, has anyone had this same problem?

Ali SC3

iTrader: (10)

probably has some air in the system. you can try bleeding it.
basically lift up the front wheels top off the reservoir and keep turning it from left to right.
it will not work with the wheels on the ground. if that fails you may need a new reservoir or pump.

8kpsshh

iTrader: (1)

I had a similar experience with that sound.... When I bout my car I replaced the PS pump with an autozone one.... (I used power steering fluid..... OOOooops). I was suppose to use Transmission fluid.... I swapped out the fluids and bled the system too many times to count.... never seemed to remedy the problem. I ended up taking the pump back and getting another one except this time I used Transmission fluid from the start... It's been fine since then.

Farino81

iTrader: (1)

are acdelco pumps any good? what brand do you recommend?

Tabaka

iTrader: (8)

AC Delco is fine but try bleeding yours first. Sometimes it's the solenoid in the rack that needs cleaning or replacing. Do a search and you'll come across that DIY thread.

Farino81

iTrader: (1)

pump is leaking

Farino81

iTrader: (1)

is this one okay?

http://www.ebay.com/itm/260825359258...ht_1245wt_1139

Farino81

iTrader: (1)

any suggestions on which pump to get?

O. L. T.

iTrader: (17)

Maintenance and engine related question moved to maintenance.

Ali SC3

iTrader: (10)

OEM or Denso

Farino81

iTrader: (1)

denso? i dont think they even make a pump. i just searched and all i see is a1cardone and acdelco

Ali SC3

iTrader: (10)

I thought the OEM was denso, might be wrong on that one, so basically I am saying I would recommend OEM.
both the ones you listed are aftermarket, they would probably work well, maybe choose based on warranty.