Hell all. I'm new to the forum, looking for a little guidance. I have a 99 Q-45 w/ 150k miles. Owned for 8 years. Two years ago the power steering started acting up. It had a loud whining sound when cranking the wheel, especially on colder mornings. My independent mechanics replaced the power steering pump using OEM Infiniti parts. Less than a year later, the same thing started happening again & over a period of a couple of months progressively got worse. Since the part was less than a year old, I swapped it out at my local Infinity dealership & had another new OEM pump installed. Well, as I'm sure you guessed, its happening again.
The odds of 2 new pumps going out in the past 2 years with the same symptoms seems remote. I'm hoping there is some other cause that is leading to the problems & I can point my mechanics in that direction. Any advice?
Thanks for your time, its greatly appreciated.
Regards,
Neal
99 Q 45 Power Steering pump problems
-
Q451990
- Moderator
- Posts: 11030
- Joined: Tue Jul 23, 2002 8:21 am
- Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
- Location: Columbia, SC
- Contact:
Re: 99 Q 45 Power Steering pump problems
to NICO Neal!It sounds like air getting into the system somewhere, or fluid starvation for some reason. Has the steering rack been checked for leaks or other issues?
Heath
Re: 99 Q 45 Power Steering pump problems
I don't believe so, but I need to verify with the mechanic.
I ran across the following in a search of the forum for Power Steering problems & it looks like there are a lot of other possibilities to consider for this problem: Any additional input would be appreciated. Thanks!
Re: Q45- Power Steering Problems (dbutler249)
by Q45tech » Thu Mar 26, 2009 11:02 am
Historically [over a few thousand Q45 serviced] the pump is the last thing to fail. Idler bearings and belts fail before flex hoses, then hardline crimp adapters/transistions leak, rack seals, and the last thing is a pump..........unless the PS fluid was allowed to become brown and full of wear metal grinding down the pump blades [rare].
Copyright 2010. Nipuspan International Corporation. All rights reserved. This material may not be broadcast, rewritten or redistributed.
http://www.t3atlanta.com/
Q45tech
Moderator
Posts: 14364
Joined: Tue Apr 30, 2002 3:19 am
Car: 1990 Q45 342,400 miles 21 years ownership with original engine
1995 G20t 5 speed 304,000 miles 16" 2002 wheels - 205/50/16
I ran across the following in a search of the forum for Power Steering problems & it looks like there are a lot of other possibilities to consider for this problem: Any additional input would be appreciated. Thanks!
Re: Q45- Power Steering Problems (dbutler249)
by Q45tech » Thu Mar 26, 2009 11:02 am
Historically [over a few thousand Q45 serviced] the pump is the last thing to fail. Idler bearings and belts fail before flex hoses, then hardline crimp adapters/transistions leak, rack seals, and the last thing is a pump..........unless the PS fluid was allowed to become brown and full of wear metal grinding down the pump blades [rare].
Copyright 2010. Nipuspan International Corporation. All rights reserved. This material may not be broadcast, rewritten or redistributed.
http://www.t3atlanta.com/
Q45tech
Moderator
Posts: 14364
Joined: Tue Apr 30, 2002 3:19 am
Car: 1990 Q45 342,400 miles 21 years ownership with original engine
1995 G20t 5 speed 304,000 miles 16" 2002 wheels - 205/50/16