Searched forums and nothing
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Junior User
Joined: Feb 2005
Posts: 53
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From: Crosby
Searched forums and nothing
ok I searched the forums and the few links that I did find for a vacuum diagram for an 88 f-150 300-6 did not work, so anyone know a reliable source for a vacuum diagram? checked chiltons and haynes and can't find. plz help
Macius
Macius
Senior User
Joined: Jan 2005
Posts: 229
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From: Wichita, KS
When you go to your library, look in the reference section. Ours has the big electrical and vacuum schematics in the "pro" service manuals that shops would use. Still Chilton's, just the nice hardbound large print type books that have everything in them.
Thread Starter
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Junior User
Joined: Feb 2005
Posts: 53
Likes: 0
From: Crosby
ok, went to the local ford shop and got the vacuum diagram. so I went home and put in a new upper intake gasket and fixed all the vacuum lines. But... The truck still runs at about 1700 rpm w/ IAC disconnected and 2200 rpm w/o IAC disconnected. Here's a list of everything i replaced
IAC
TPS
Upper Intake Gasket
CTS
Throttle Body Gasket
Anything else this could be?
"1988 F-150 300-6 4-spd RCSB"
IAC
TPS
Upper Intake Gasket
CTS
Throttle Body Gasket
Anything else this could be?
"1988 F-150 300-6 4-spd RCSB"
