Cleophas Machomera review: trailblazer with a loose part in the wheel suspension

I bought a trailblazer in May 2015 in Harare, Zimbabwe from Autoworld, a local GM Motors Dealer.

A few months after buying the vehicle I started hearing and feeling a knocking sound from the right front wheel suspension. The sound or noise is that of a loose part. I took the car to the dealer to have it fixed. The noise only subsided for a few weeks and it resurfaced. I took it back again but after two or three weeks the loose knocking noise came back. Up to now I have been taking it back to the dealer's workshop to no avail. They have failed to diagnose and solve the problem. Each time they say they can't identify the problem though they can also experience the noise on test drive.

The loose knocking part noise is not only discomforting but poses a potential fatal danger to myself and family who drive in it. I can't enjoy the car anymore. They dealer seems to have also given up on the problem. Please help.

I will appreciate any help you can offer to solve this problem and make me enjoy the drive again. I like my car. It's still relatively new at about 100 000km of mileage only. I can't imagine parking it now.

The vehicle details are:
Chasis number: MMM156MKOEH625063
Engine number: BGIG140391126

My contacts are:
Cleophas Machomera
+[protected]
+[protected]
[protected]@gmail.com