2006 Lacrosse Clunk
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white06lacrossecxs
- SSEi Member

- Posts: 163
- Joined: Mon May 26, 2008 3:27 pm
- Year and Trim: 2006 Buick Lacrosse CXS
- Location: California
- Contact:
2006 Lacrosse Clunk
On my 06 lacrosse Im having an occasional clunk on take off from a stop. It sounds like its coming from the back of the engine compartment / and I can feel it sometimes in the floor. It will even do it on occasion when turning to back out of the driveway, any ideas?
Last edited by white06lacrossecxs on Fri Sep 03, 2010 3:37 pm, edited 1 time in total.
- Archon
- Resident Gearhead

- Posts: 8781
- Joined: Mon May 19, 2008 10:30 pm
- Year and Trim: 2014 Cadillac XTS Vsport.
- Location: Grand Rapids, Michigan
Re: 2006 Lacrosse Clunk
Not being familiar with the Lacrosse, I can only offer general suggestions. Start by checking the movement of the engine to see if it could be a loose motor mount. Also check steering, and suspension components. Tie rod ends, stabilizer links, bushings, etc.
*Gone, but not forgotten* - Black 2000 SSEi, HIR Headlights, Angel Eyes fogs, 3rd brake light overlay, hi-flo cat, 180 degree thermostat, HS 1.9 rockers, LSx yellow springs, Intense FWI, PCM, shift kit, push rods, and 3.4 Pulley. ZZP Power Log.
Re: 2006 Lacrosse Clunk
Yeah if its in the suspension, its likely the sway bar end mount bushings... or the stabilzer links. I put on the Energy suspension sway bar end bushings, and they should mount right up on your vehicle with no mods. and they have a grease fitting. My suspension is better than new car, at this time and the steering as smooth as hell, never been better. And I just modified the rear springs to a softer ride. Pics soon. Tires/wheels/alignment soon. It took some work but its about there now.
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myfirstbonnie
- Resident Gearhead

- Posts: 5530
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2015 Buick Enclave
2013 Buick Regal GS - Location: Hillsboro, Oregon
Re: 2006 Lacrosse Clunk
When I looked at one of those in the dealership, they still used the marshmallow mount on the transmission just like our 2K+. As archon suggested, check the engine movement by putting the car in gear and while holding the brake, give it a little gas. The motor should not move a lot and if it does, there is probably a bad mount.


