Squealing when clutch engaged. Engine stalls when depressed at idle
'04 G35 Sedan 6-spd.
Started happening immediately after a car wash. They also did an undercarriage wash. I didn't pay much attention when I was driving off but after 5-10 mins of driving, i noticed a high pitch squealing when clutch was engaged. The engine would drop down to 200 rpm..
After two days, the engine would cut off when whenever I have the clutch depressed at a stop.
Any ideas and thoughts would be appreciated.