Revving Engine 92 F1150
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Junior User
Joined: Sep 2008
Posts: 56
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From: bethel ct
Revving Engine 92 F1150
Hi all:
Does anyone have an idea what would cause a 5.8 in a 92 F150 rev to about 3 grand? I put this 93 5.8 in a few years ago and it was fine for a while then this happened so i just disconnected the IAC motor and it was ok after a minute of warming up, so i finally got around to changing the IAC figuring this was the problem and it turns out this is not the problem....any help is greatly appreciated
Thanks, Scott
Does anyone have an idea what would cause a 5.8 in a 92 F150 rev to about 3 grand? I put this 93 5.8 in a few years ago and it was fine for a while then this happened so i just disconnected the IAC motor and it was ok after a minute of warming up, so i finally got around to changing the IAC figuring this was the problem and it turns out this is not the problem....any help is greatly appreciated
Thanks, Scott
Cargo Master
Joined: Jan 2004
Posts: 3,118
Likes: 149
From: South Dakota
My '94 did that a few years ago and it was the throttle position sensor. If you unplug the IAC and the idle slows down it is a sensor according to information posted here a short time ago. I suggest any sensors be replaced with genuine Ford parts.
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