R razoroy New Member Jul 21, 2007 1 0 0 Jul 21, 2007 #1 Jul 21, 2007 #1 My 02 4.6 sometimes surges while at idle,,,,,,,anyone have any ideas what could cause this,,,,
M mustanggt3685 New Member Oct 8, 2005 130 0 0 Illinois Jul 21, 2007 #2 Jul 21, 2007 #2 Check the IAC
S Sinewave New Member May 11, 2004 25 1 1 Kenner, LA Jul 22, 2007 #3 Jul 22, 2007 #3 My 02 with 58K miles was doing this for a while and got really bad last week. Turns out the PCV hose going to the left side had a 3" split along the bottom - HUGE vacuum leak.
My 02 with 58K miles was doing this for a while and got really bad last week. Turns out the PCV hose going to the left side had a 3" split along the bottom - HUGE vacuum leak.