Hi all, Having problems with my 1997/1998 Toyota Camry,its an sxv20 4cyl auto 5sfe engine Car has been jerking and takes off slowly during take off.Some small backfires when slowly taking off.I noticed if i hold one of the tubes/slim hoses behind the efi unit,the whistling sound goes away.Efi area making whistling and funny noise.I have put efi cleaner in fuel tank and has helped performance a little bit.Transmission oil is black,not sure if transmission is causing slow take off,but transmission needs servicing.Im guessing the problem is something to do with efi/electrical problem,a failed sensor/switch? bad contacts in wiring somewhere? Also I have to top up radiator with water once a week.I changed oil,oil filter and spark plugs about 6 months ago.A mechanic told me 6 months ago that engine is no good,needs new radiator,water pump,head gasket etc,but car has been running pretty good until recently.I dont think theres a blockage in the cooling system,since I refill radiator with water and/or collant once a week.The car is about 17 years old now (getting old) and i'm hoping some basic tests/maintenance will get the car running smoothly again. Would it be worthwhile taking the car to Super Cheap Auto and let them do their $28 diagnostic test? Any help/suggestions would be appreciated.I know a little bit about cars,but dont know how diagnose a problem like this Cheers Nero brisbane-workshop (at) hotmail (dot) com