high idle
#1
Junior Member
Thread Starter
Join Date: Feb 2010
Location: iowa
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
high idle
92 f150 4X4 5.0 had low idle so i cleaned egr and tb also cleaned idle control now it idles at 1500 rpm in gear and 2000 -2800 rpm in park . what can cause this thank for any help .this is my first efi ford
Last edited by RAZ282; 02-20-2010 at 02:20 AM.
#2
Upper Middle Class
Join Date: Aug 2009
Location: Wyoming County, West Virginia
Posts: 2,628
Likes: 0
Received 12 Likes
on
8 Posts
Have you checked for codes?
Just because you cleaned the Idle Air Control Valve (IAC), doesn't mean that it isn't faulty and needs replaced. You may also have a vacuum leak somewhere. But to save yourself ALOT of trouble, check for codes first.
Just because you cleaned the Idle Air Control Valve (IAC), doesn't mean that it isn't faulty and needs replaced. You may also have a vacuum leak somewhere. But to save yourself ALOT of trouble, check for codes first.
#3
Mark
iTrader: (1)
Throttle positioning sensor or idle control sensor, both located on the throttle body, check all vacum lines
Trending Topics
#9
Junior Member
Thread Starter
Join Date: Feb 2010
Location: iowa
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
high idle
i took both lines off going to breather started the truck and put my hands over tb and it idles just maybe 200 rpm lower i guess major vacume leak ? maybe upper intake gasket?