Hello. Is it normal for a 2000 X w/3.3 to rev up to around 2100ish rpm when cold starting?. It then drops down to about 1100 till it's fully warmed up. Seems to engage into Reverse and Drive harder than before. When fully warmed up its down at around 750. Does all this sound normal? Recently had work done on some coolant and oil leaks. I don't remember it revving that high on initial start up before the repair. I'm thinking that maybe the fast idle thermal switch wasn't functioning properly before the repair. It seems to be adjusted correctly now. Never checked it before. Thanks in advance.