Clunking noise over rough pavement

[rayfloyd170]

Originally Posted by rayfloyd170

thanks for your reply. will do it, i will drop by a shop later and try to check the front brakes.... actually my car is still under warranty as it is 2 yrs & 10months old..

BTW i went to toyota showroom and asked them about this and it is very funny they are not selling the LCA bolts... they said i need to look for it.. too bad..
i guess customer service here isnt up to the mark.

I went to a car mechanic and the he drove the car while i was instructing him on when i normally hear and to further explain him about the unusual clunking sound. He then checked the LCA bolts and bushing of the control arms and others... He sprayed lubricant (i think lithium based spray) to the bushing area where the bolts are located... We tested it after application of the lubricant but the minor clunking sound is persistently still there. He told me to purchase the bushings and he will install it afterwards since he suspect they are worn out and common for yaris..

Blessing in disguise, i went to the shops looking for the bushing and they were all closed for prayer time in KSA... I immediately went home and after lunch decided to have a car wash including the under chassis before going back to the mehanic. Ive instructed the guy to wash out the undercarriage properly then i saw some " sandy-materials sticking at the white lithium based grease" which was sprayed to the bushings... I specifically informed the car washing-guy to remove all the grease as i believe the bushing doesnt need to be greased.. Doing so, he removed all the sandy materials together with the sprayed lithium grease.

Alas,after the car wash when i drive my car, it was completely very silent and no more clunking sound...

In a desert area " sandy, dusty, dry weather" this led me to conclude that it was definitely the dust/sand and good thing i did not have to spend extra bucks replacing the good original bushings in my yaris...

The high pressure water washer definitely did the job... :)

Thank you.