Noisy Squeak When I Drive Over Speed Bumps?

Bison · December 7, 2003

I have noticed a rather noisy squeak when i drive over speed bumps, so when i parked up, i pushed down on the front of the car to see if oi could hear the noise, but i heard nothing, it seems to do it in the mornings or after it has been stood for a few hours, when warmed up I don't seem to notice it.

Could this be shocks or springs? if so I would like some lowering springs, are they available in the uk? should I get shocks and springs if lowering the car or will lowering springs do?

Regards Andrew (Bison) :zee:

Rodders_UK · December 7, 2003

Could be almost anything mate - you just need to try to find the noise.

My car squeaked for ages and it drove me nuts - found that it was a loose bolt of the electric aerial - and it moved slightly when I went over bumps

pops · December 12, 2003

I have the same squeak happening on my 94 LS 400. Feels like a rear suspension glitch. The suspension generally feels a bit too spongy. If you do get it investigated, could you post the results?

JayBeeBee · December 12, 2003

Try wd40 on the front stabilizer bar bushes(the ones that go at an angle to the front) mine squeaked from there. They eventually split, and clonked instead!

Daver · December 15, 2003

Have "Exactly" the same problem on '90 LX400 with 160k. After a couple of minutes.

driving, the same speed bump, at the same speed is completely silent! I will be

investigating when I feel a bit more like crawling under the front end. Will post any

solutions.

Dave/.

Steve · December 15, 2003

worn bushes or anti roll bar linkage

gazcarts · December 17, 2003

I have a similar knocking sound, strangely enough only when it is very cold (<4 degrees) outside (car isn't garaged).

Only from the front nearside suspension, and disappears after about 10 minutes.

Thought perhaps it's to do with the air suspension and the cold temperatures, but dealer is equally puzzled (very hard to demo as it only happens first thing in the morning when the car is first driven).

gazcarts