How problematic has everyone found the front suspension to be in the GXP's? So far I've had the normal intermittant shaft problem, but also have replaced the stabilizer links. Now I have a feeling the driver side ball joints are going as there is a clink noise at almost every bump. Could be something else too, but thats my guess as of now. I'll have to check this weekend when I change the oil.

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~Pauly~

How many miles do you have?

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Seth

Bonita 78,000 miles traded on a CTS4

Nothing out of the ordinary for any car at the expected age and mileage. I just had to change out inner tie rods for the second time recently - but the catch is that I don't know what kind the original owner put in. If he had gone with bargain basement cheapies, they were due for replacement again.

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Jerry /// Past: 95 SSEi (June 2010 COTM) -- 04 GXP (July 2011 COTM)
91 Honda Civic Wagon DX 2WD (fuelly) -- 208,000km -- 92hp -- Autocross Warrior
09 Lexus LS460 AWD -- 94,000km -- Daily Driver
09 White Hot G8 GT -- 155,000km (fuelly) -- LS3 Cam -- GM LS3 CNC Ported Heads -- Kooks 1 3/4" Long Tube Headers -- Solo Catback Midsection -- Hooker Maxflow Mufflers -- Pat G Tune -- Rotofab Intake -- Tein S-Tech Springs -- GXP FE3 Dampers -- BMR Subframe Cradle Inserts -- BMR Subframe Connectors -- Forgestar F14 Gold 18x9 +40 -- Michelin Pilot Super Sport 245/45/18 -- Maverick Man Carbon Fiber Spoiler

I have 143K. Did passenger side wheel bearing, new one is noisy after one year. OEM driver side is loose and needs replacement but quite as a mouse. Upper strut bearings are stiff and creaky. My '02 had all the same issues by 180k. Overall, no complaints, everything else is tight.

I'm at 98,000 miles now. Ball joints looked good and tight, I did grease them though. Everything looked good underneath, meaning all was tight and free of rattles. I wonder if something is just loose and rattling such as a heat shield or something along that line...

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~Pauly~

I have the same things going on with my GXP; bought mine off some farmer and noticed missing stabilizer links, minor intermittent shaft "clicking," and ball joints that ride extremely hard (haven't had time to get under the car yet). But I guess I wasn't completely surprised considering I don't know the farmer's maintenance habits and my car now has 101k on it as I drive all over MN for work.

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In My Garage:

1995 Camaro Z28 - LT1 w/ 6-speed, Magnaflow Exhaust, Moroso Cold Air Inake, Powerstop drilled/slotted rotors and ceramic pads, Z06 Chrome Wheels, Founders Performance Strut Tower Brace (Work in Progress)
2010 Dodge Ram SLT Big Horn Edition Quad Cab - 5.7L Hemi, 390HP, 4x4, Daily Driver

Past Vehicles:

1989 Acura Legend - 'Tank'
1999 Dodge Dakota Ext. Cab - 'Bulldog'
2004 Bonneville GXP - 'Red Demon' - Already Missed

***Showed up expecting a battle, left with a laugh***

How did you grease them? Did they have zerks?

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Bye Bye:

RIP sandrock

Yes, lower ball joint has a zerk.

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~Pauly~

Are they bolted in? I know our GXP doesn't have zerks, along with my 03, making me wonder if yours haven't already been replaced once...

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Bye Bye:

RIP sandrock

Are your ball joins bolted on or riveted? If they are bolted they are for sure aftermarket. Mine too don't have zerks.

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Seth

Bonita 78,000 miles traded on a CTS4

Hmmm... I'll have to take a peak on that one...

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~Pauly~

Well took a peak under the car, they really do look factory. Hard to believe the lower ball joint on both sides of the front of the car were replaced. They have 1 zerk right on the top.

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~Pauly~

Could be replacement co.trol arms.

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02 SSEi-Turning money into tire smoke, very efficiently.

Did you check the sway bar bushings? Mine just rolled over 30k miles and had a clunk, changed the end links and it helped but there was still some noise there. Got it back up and looked at the swaybar bushings and you could see daylight between the swaybar and the bushing. Put the Energy suspension bushings in and problem is gone. Got some pics somewhere....

I had none. This is one area I never had to mess with. Most OEM suspension parts no longer use zerk fittings, so if you see them, it ain't stock most likely!

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Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*

Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ

Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2007 Chrysler Town & Country Limited: Sold to neighbor
2009 Pontiac G8 GT: L76, Sport Red Metallic
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... new plow truck
1999 Chevrolet Suburban: Sunset Gold Metallic - Daddy's winter beater and plow truck