while driving my car will try to die and then it accelerates on its own same thing on reverse , i cant drive it anywhere because it will die and its scary when it tries to speed on its own , what could it be guys ?
ya i was thinking that too and some members at sccoa told me about it , but they also said that if i disconnect the iac while running the car should stall , that means it should be doing its job , mine stalls when i disconnect it.
does it only do it when it warms up? The 89-93 design, the insides of em were plastic, the new and improved design on the 4.6l were metal. I disconnected mine too and it stalled. Let it warm up, then disconnect it.
my 2004 3.8 mustang used to do that...throttle would stick while slowing down or would bog down--car was in Neutral...never could quite get it right and didn't trust the stealership to not F anything up with warrentee work so didn't fix it...
my moms windstar does the same thing. im thinking it has a vaccum leak because when i first start it, it will jump up to about 2k for about 3 seconds then slowly decrease to about 1100 RPM's then will stay there for about 1 minute and hit its idle at about 700-800 rpms
sry i didn't post back, mine was a ground problem , negative battery post to radiator frame ..
but then again i replaced the iac and tps when i replaced the supercharger assy from another car
1993 tbird sc.. catback , 10%, 14 psi..... SOLD
1995 tbird sc.. auto,chameleon, MP Intake, MP tenioner springs,SCI Underdrives,double ic with fan, ported blower and plenum 8% pulley, single exhaust, flowmaster muffs. Mark viii brakes, 19 inch rims.. Taylor 8.2 wires, VDO gauges. ..15+lbs boost.
ok if it is the IAC , it should make a sound like a goose on Crack LOL and yea i agree IAC mine did the same thing about 8 month ago
why do you say this? mine occasionally makes this loud humming noise that increases/decreases with a slight movement of the throttle, but a quick jab of the throttle will cause it to go away. I know my IAC is bad because I do get a high idle occasionally (only when its warmer out it seems.) I originally thought it was a small vacuum leak I had, but after replacing the line it still has done it. why would the IAC cause this?