5.0 explorer plenum on 5.0 mustang??
07-23-2010, 10:11 PM
#1
Thread Starter
Join Date: Jul 2010
Location: alabama
Posts: 42
5.0 explorer plenum on 5.0 mustang??
bought mustang from guy and turns out that the plenum and throtle body on it is from a 5.0 explorer. it is the plenum with the curved neck for the throtle body. well i was wondering if this could make it jumpy at low idle and cause it to idle high. i have the screw in the throtle all the way out and the star screw (that has something to do with the idle air valve) is barely turned out. does this plenum give it more horse power and could it be why its so touchy and hard to set idle?
07-23-2010, 11:25 PM
#2
3rd Gear Member
Join Date: Apr 2007
Location: NC
Posts: 590
check your timing, could explain the idle, yes the explorer intake is better than the stock 5.0 intake, its an improved version of the gt40, as far as power increase, I wouldn't think it'd be much, but it is a better intake, start looking at other things for the idle
07-24-2010, 06:12 AM
#3
6th Gear Member
Join Date: Oct 2005
Location: st clair shores MI
Posts: 6,028
idle problems are usually vacuum related.
start looking at the hard plastic lines, and near the distributor the tube from the intake to the box in the fender
if you unplug the IAC and the car stalls..... you have issues that you need to fix.
also unplug the battery for about 20 minutes when you make changes. the computer will adjust stuff to make it run, and you dont want that
go read here....very good drivability thread, this guy knows his $h!t, hope you have a minute...lol
http://www.stangnet.com/mustang-foru...checklist.html
start looking at the hard plastic lines, and near the distributor the tube from the intake to the box in the fender
if you unplug the IAC and the car stalls..... you have issues that you need to fix.
also unplug the battery for about 20 minutes when you make changes. the computer will adjust stuff to make it run, and you dont want that
go read here....very good drivability thread, this guy knows his $h!t, hope you have a minute...lol
http://www.stangnet.com/mustang-foru...checklist.html
07-24-2010, 06:28 PM
#4
Thread Starter
Join Date: Jul 2010
Location: alabama
Posts: 42
so when i unplug the idle air valve it should just die like i cut the switch off? and does anyone know how the set the star screw, under the little cap, that has something to do with the idle air valve?? i thought i had everything kinda close but sense i read all that now idk. im glad theres someone smart in this world to help me!!!!!
