New Aurora Maintenance Challenges (UPDATES)

Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the Intrigue / Aurora 3.5L Twin Cam V6 (Short Star ) , 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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RJGill84
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Retired Site Developer
Posts: 751
Joined: Thu May 22, 2008 7:37 pm
Year and Trim: 2001 Pontiac Bonneville SE
Location: Akron, OH
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New Aurora Maintenance Challenges (UPDATES)

Post by RJGill84 »

When I bought the Aurora I knew it had a few minor issues - fuel sender, passenger wheel hub/bearing, and it seems the power steering is bad as well. It also looks like they replaced the stock exhaust...seems to have only been from the mufflers back though. They actually sawed off the tips of the original exhaust and welded them to the round tailpipes to keep the original shape. Looks kinda ghetto bc you can see straight through them. I'll have to inspect more carefully to see what type it is...hopefully it's not more restrictive or reducing the exhaust sound comapred to OEM.

As far as the power steering goes; I drained the reservoir and put new fluid in, then turned it lock to lock several times, drained out some more, and replaced. I did that several times. The fluid was a disgusting blackish brown. It quieted it down some for a couple of days, but it's back to it's loud groaning. Hopefully a new pump solves it.

Tonight I bought a new hub assembly, power steering pump, AND the dealer part that Hans' used to repair the faulty fuel sender; all for about $150. Thanks to LeSabre in Buffalo's discount code, I just went to AdvanceAuto.com, paid online and selected store pickup, saving $40. I've never replaced a power steering pump, wheel hub/bearing, or fuel sender...sooo this will be a learning experience for me. I may need to lean on some of you gurus...however, there are a lot of great write-ups on Pontiac Bonneville Club for all of these topics, thankfully.

When I'm all done, this car should be in pretty good shape. It does need a good claybarring/waxing/polishing treatment. Maybe I'll get to that at the Michigan Meet next year, since we should be coming. :twisted:
Last edited by RJGill84 on Mon Nov 08, 2010 12:45 am, edited 3 times in total.
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"SLE without the ugly" - leather, climate control, sound, 3.05 gearing, 180* t-stat, tints. http://www.gillsystems.com
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RJGill84
Retired Site Developer
Retired Site Developer
Posts: 751
Joined: Thu May 22, 2008 7:37 pm
Year and Trim: 2001 Pontiac Bonneville SE
Location: Akron, OH
Contact:

Re: New Aurora Maintenance Challenges

Post by RJGill84 »

UPDATE: Replaced the passenger front wheel bearing. It's nice and quiet now, and the Service Stability message on the DIC is gone.

Also replaced the fuel level sender piece per Han's video. Works PERFECTLY and saved me a couple hundred. Very easy procedure for those of you with wonky fuel gauges. Thanks Hans :beerchug:

Replaced the power steering pump as well. It was very quiet the first 10 minutes, but it's back to being extremely loud. I flushed the system multiple times, and refilled with quality power steering fluid following the bleed procedure. The noise is pretty intense, even at speeds about 30mph there is a slight groaning/squeeling.

I decided to flush and fill again with Dexron VI power steering fluid, as it's spec'd on many vehicles, as supposedly did wonders for some of the Aurora Forum members who had noisy PS systems. It, too, did NOT quiet it down at all. I then tried some Lucas Power Steering treatment, which is "gauranteed" to stop noises - of course, it did nothing either.

You can hardly hear it on the outside of the car, it almost seems as if it's coming from underneath the steering wheel. Hope it's not the rack. This thing is SUPER loud guys - and extremely annoying at low speeds. Any ideas??? :dontknow: :banghead:
Last edited by RJGill84 on Mon Nov 08, 2010 12:48 am, edited 1 time in total.
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"SLE without the ugly" - leather, climate control, sound, 3.05 gearing, 180* t-stat, tints. http://www.gillsystems.com
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Kersh
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Posts: 47
Joined: Wed Feb 17, 2010 12:56 pm
Year and Trim: 2001 Bonneville SSEi
2005 Bonneville GXP *Sold*
Location: Canton, Ohio

Re: New Aurora Maintenance Challenges (UPDATES)

Post by Kersh »

If you are unable to hear it outside of the car, I would look for one of the hoses to be coming in contact with something in the chassis. You may just be getting a harmonic resonance inside the car.
2006 Saab 9-7x 5.3i
2005 Pontiac Bonneville GXP / 4.6L Northstar *Sold*
2001 Olds Aurora 4.0 w/GXP Exhaust and High-flow cat (OSV Wannabe) *Sold*

2001 Pontiac Bonneville SSEi, 3.4" MPS, Intense Tune, SD headers, high-flow Cat, GXP exhaust, Modified Air Intake, 180* thermostat, GXP: 18" GXP wheels w/255/45/18 tires, CF Trim, Brakes and Strut Tower Brace. SOON TO HAVE: GXP Swaybars.

1972 Olds Cutlass Convertible / 461ci Olds / TH400 / 3.08 Posi. 13.62 @ 99.7 MPH......Got torque?


Yes, I seem to be drawn to GM's orphaned cars......
CincyGXP
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Posts: 68
Joined: Thu Jul 10, 2008 4:08 pm
Year and Trim: 2004 Bonneville GXP
98 SE
Olds Aurora Final 500
Location: Cincinnati, Ohio

Re: New Aurora Maintenance Challenges (UPDATES)

Post by CincyGXP »

If I remember correctly, there was a TSB on the Auroras for a power steering hose that was too short, and would cause noises. If you could find that TSB, it may help you.
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