One problem related to crankcase (pcv) has been reported for the 2000 Ford Mustang. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Ford Mustang based on all problems reported for the 2000 Mustang.
When I come to complete stops, (e. G. @ a red light) the tachometer slowly rises to 3,000 - 3,500 rpm's and the engine compartment shakes and roars as if I am accelerating. This has occurred at least 35 times since the original occurrence on 12/19/1999. I have not driven the vehicle since 02/29/1999. The car has been to two Ford dealerships six time to fix the problem. The following items have been replaced: air bypass valve, iac (3 times - they claimed each one, including the original was faulty), on board computer. Yet the problem still persists. Ford has finally agreed to reacquire my vehicle. I have spoken to other 2000 Mustang gt owners (all with vehicles built in 09/1999) they also have idle issues. The two I have spoken with have a reverse problem. Theirs idle so low, the vehicle stalls. I think Ford should look into the gt's that were built early in the model year. I have not heard of anything with the gt's built later in the year.