SOrry to bug y'all again..thought I found the source of this problem but apparently not. Recently, (within last 4 weeks), at startup in the mornings, I noticed high idle (around 1800-2000), gradually coming down to around 1200. I cleaned linkage, and it somewhat corrected the problem (Somewhat meaning startup idle @ 1500, dropping to about 1000 after a minute). HOWEVER...it's back. Idle at morning startup (or after sitting / cooling off for 3-4 hours), idle is back at around 2000, stays there for several minutes, reduces when I 'pop it', then drops to 1300-1400 until I get in gear for a mile or two. (a) is this a 'problem'?; (b) if (a)='true', then what's the source; (c) fix? Thanks in advance..