Hi everyone,i'm new here. BTW,i've problems with my car. The model is Proton Iswara '00. 1st problem is if the car is cornering,there will come out rat-like noise. My friend said that was because of the driveshaft,but accordin to magazine 'KERETA',it's because of the bushing. which one is correct? 2nd one is my dad have installed power steering in the car. It do help,but then around 4-5 months ago,the steering feels very heavy. What is going on? Another buddy said it was caused by the leaking pump. can anyone tell me please and how much the cost needed to repair it? tq.