Does anyone happen to have a picture or diagram of the front end suspension of our cars? Something is loose causing a knock when I hit bumps, and I'm not entirely sure what it is. I believe it to be the stabilizer bar, but I can't be sure. There also appears to be some grease on the lower control arm of the side that knocks. No symptoms of a bad CV joint though, so hopefully that's not it.

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Bonneville SE -- Cruising the mountains, surfing the lowlands, and passing broken down competition since 1993!

Could be a number of things. You don't need a diagram to figure our suspension out, its extremely simple.

My first few suspects would be upper strut mount, sway bar bushing, or sway bar endlink. Much anything else and you'd have a big problem with keeping the car on the road.

Do you keep your tie rods and ball joints greased?

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John
Now: '15 Toyota Prius III | 134 hp 2ZR-FXE | Silver | 36k
Now: '03 Honda CR-V AWD | Slow 4-Cylinder | Dirt | 180k
Then: '07 Ford Fusion SEL | 221hp Gen I VVT Duratec 3.0 V6 | Tungsten Silver | 150k
Then: '99 Toyota Avalon XL | 200hp 1MZ-FE 3.0 V6 | Diamond White | 189k | Sold: July 2015
Then: '11 Ford Fusion SEL | 240hp Gen II VVT Duratec 3.0 V6 | Ingot Silver | 84k | Totaled: Oct 23 '14 (Rear-Ended)
Then: '96 Buick Park Avenue Ultra | 240hp Series II L67 | Medium Dark Lichen | Bought: JAN 11 @ 135k | Accident: FEB 3 '12 | Crushed: MAR 1 '13 @ 153K
Then: '98 Pontiac Bonneville SSE | 205hp Series II 3800 L36 | Topaz Firemist | Bought: NOV '09 @ 74k | Accident: MAY 28 '10 | Crushed: MAR 15 '11 @ 84k
Then: '93 Pontiac Bonneville SE | 170hp Series I 3800 L27 | Dark Yellow Green | Bought: JULY '07 @ 92k | Sold: JULY '12 @ 118k
Then: '89 Pontiac Bonneville LE | 165hp 3800 LN3 | Medium Garnet Red | Bought: JAN '05 @ 117k | Sold: SEP 30 '07 @ 152k

I agree, I think it's the sway bar endlink, and as I've gotten the joint under better light, I believe it to be somehow completely disconnected. I'll try to get some pictures ASAP, but to be honest I haven't driven it much, and it definitely hasn't been through any rough terrain as of late (other than speed bumps).

I have had this knock sound going on since I got the car, but it's not completely regular. It will knock one time across a speed bump and not again for a while. I always take them slowly, too. I had posted about it as an asside before, and had greased the upper strut mount. It stopped for a while but reoccurred. I don't know how I would've never noticed this lower control arm issue, so it may be new, or maybe i'm blind.

Anyhow I got the car last March and haven't had it in the shop for anything other than a brake change. I would assume if this was the case when they changed my brakes they'd have noticed.. i'm going to try to get this fixed ASAP because it needs re-inspected this month too :/.

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Bonneville SE -- Cruising the mountains, surfing the lowlands, and passing broken down competition since 1993!