Question about 1990 Lexus LS 400
My 1990 lexus LS 400 (113,000 miles) makes thud noise from the right fromt tire when I hit bumps in the road. It is really noticable whem I change lanes on te freeway and hit the raod reflectors.
I had a front end shop inspect the front end and they said they could not find anything wrong, everything was tight. When the car was on the car lift they struck the right front tire with a tire iron and it sounded solid. However, when they struck the right front tire a dull thud sound could be herd but they could not find anything loose.
Most probably a torn lower suspension arm rubber bush that would not show up if the car was on a 4 post hoist
there is a problem there as the noise would not be evident if there was nothing wrong
different tire pressures will give different noise when hit with a tire lever ( a trick used by truck drivers to check for flat/ under inflated tires
good tire solid sound
low pressure tire a dull sound
Posted on Apr 23, 2017
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Posted on Jan 02, 2017
how long has it been since the breaks themselves were replaced?
what it seems like is there is either a break locking problem, or possibly the axle could be damaged.
not much but my suggestion would be to take it to get a diagnostics check on the full brono and see if an auto shop themselves can figure it out.
Posted on May 22, 2009
SOURCE: 2000 Lexus ES300 - 45K
Are you sure this is a rattle or is it more of a creaking noise? I have a 2000 ES300 and had an issue when I would go over speed bumps and the noise would drive me nuts! However replacing the bushing in the top of the strut mount is expensive due to the labor involved.. Replacement of the strut or the bushing isn't necessary. Just open the hood, locate the strut housing and you ll be able to see the black rubber bushing in the middle. Obtain a can of Heavy Duty silicone aerosol spray and attach a straw to the spray tip. Using a flathead screwdriver wedge the screwdriver between the top of the bushing and the metal pushing the screwdriver all the way to the edge of the metal underneath the roof of the metal housing. Then pry the edge of the bushing away from the metal housing so that the top of the edge of the bushing exposed and stick the straw end of the silicone into the spot and spray generously. Only slight bushing movement will be obtained as the bushing is pretty stiff but it will be enough. Work your way around using this technique until you get the spray fully around the bushing 360 degrees getting it into the area between the edge of the bushing and the metal. Then spray the silicone onto the top of the bushing filling it all the way up until it spills over the metal. After it drains down, repeat again making sure you fill it above the rim of the bushing so it seeps into the area between the bushing and he metal housing (or frame) because this is where the rubbing is taking place that is creating that awful noise. Repeat on the other side and your done. The main goal is to get the silicone into the area between the metal and the bushing along the edge. This happens to be the way I was able to do it. This totally solved my problem and now the car is so quiet there aren't any knocking, creaking or rattling noises. This was a hard solution to explain without visuals, hope you can follow. This will work for sure. The Heavy Duty Silicone spray I used was manufactured by CRC and I bought it from Walmart.
Posted on Jul 22, 2009
Your Caravan has no rear differential. The van is a front wheel drive, you may have a bad brake or your spare tire under the back of the van is lose. the other thing to look for in the back is the rear shocks could be broken or lose. Good luck and keep me posted, be glad to help get your van running 100% again soon.
Posted on Aug 21, 2009
Testimonial: "Yes, you are correct that front wheel drives have no rear differential. Man, I feel stupid! Thanks though as that eliminates that as a source. "
u will need to remove tires and support car on jack stands under the hood u will find three nuts holding the strut up u can only pull strut off once u hav removed all other bolts from below car... go to auto zone.com and look up repair manuals they will be free after u sign up which is also free
Posted on Apr 21, 2010
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