An urgent query to all Vitz 1.3L AT 2SZ-FE (2WD) Owners. I recently bought a 2007 Toyota Vitz 1.3L AT 2SZ-FE (2WD) and took it to my mechanic for changing lubricants and tunning and brakes. I got my engine flushed with Liqui Moly Engine Flush used Havoline Formula Oil with Original Toyota Oil filter and air filter. Got my CC checked and the first one was choked so changed with a special dholki prepared for vitz to maintain the pick, performance & sound. Car drive is awesome but i got only one problem. Once car is all warmed up and with a little bit of push on accelerator i hear a Grinding Whirring noise from the engine. The RPM would be around 1100 at that time but once i push it more it gets fine like on around 2000 RPM or maybe the engine becomes a little noisy on 2000RPM making that sound invinsible. i got it checked from different places and spent money on Timing Chain along with Timing Tensoner replacement and got the Water Pump changed as well but the sound is till there. Today my mechanic tried changing the generator and compressor but of no use the sound is still there.
Please let me know if anyone of you having same car is facing same issue and how to resolve it.