Hammeringn noise at the front left side

Toyota corolla gli 94 model, 127000km hi good morning, im lito from the philippines, one month ago ive heard a noise gruggling on the left side of the car, 2 weeks after, i've inspected it and suspected that the lower suspension booshing and other bushing were worn out, cv boot and axle boot are all intact (no evidence of grease leakge), i've decided it to bring my car to a certified technician to replace all the booshings of the uppler left suspension and other booshing as weel, after so, the sound or noise is still there, what seems to be the problem, the technician again analyze it and tellme that it si the cv joint or the bearing on the other ned is the one creating the noise, is it true? Any advise would be very much approeciated, thank you and more power.