I have the 2009 V6 3.3l Hyundai sonata and it has been making a rattling sound for about 3 seconds at first start up only, some say it's the timing chain/tensioner, last week it would drive smooth and cut out and sometimes refuse to restart until a few minutes have passed, took it to get checked and it had code for crankshaft position sensor, had that replaced with a new one (not a Hyundai made as the Hyundai office in Lagos said they didn't have it, a friend bought it for me at ladipo) replaced but the problem still persisted.
Took it back again and it had code for camshaft position sensor, had those replaced ( also new) and the random engine cutouts stopped but the car started shaking if on Drive and not moving, and it also didn't respond quickly when the accelerator pedal was depressed, it'd increase rpm but not increase speed accordingly/respond fast enough, the running was rough and this was new.
Took it back again and it was showing P0335, the mech said it has probably jumped timing( at this point the mechanic was already getting frustrated), drove it back home and parked it, and it won't restart, cranks but will not start, do you think it's the timing chain? If it is, can you recommend a good brand and where to buy? I need to fix the car and I don't know what mechanic or electrician to trust anymore, these sensors and other things I bought whjxh appeared to be guesses from technicians I visited already cost me over 120k, I've been to three mechanics/rewire, the first mechanic Even had me buy a new fuel pump.
I need your advice on what to do and maybe a recommendation about a good mechanic/rewire based in Akure, Ondo state.