How to Set Idle on '00 DD4WD w/4.9L
Legend
Joined: Feb 2005
Posts: 8,058
Likes: 184
From: Fort Worth, TX
that was the cruise control unit you encountered. The Idle screw is on the opposite side of the TB from the cables, the IAC is a little black cylindrical thing off the throttle body with a 3-wire plug, not sure exactly where on the 4.7.
Section Moderator
Joined: Dec 2010
Posts: 4,858
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From: MA
The cable you followed, from your description, is likely the cruise control servo. Was it mounted to the passenger side inner fender, near the front?
The IAC is part of the throttle body.
Did you check for codes? Try this: with the truck not running, turn the key to RUN (don't start the truck), then OFF, back to RUN, then OFF, then leave it in RUN. Any codes will display in the odometer window. It will say P DONE when complete.
Let the truck help you diagnose any problems.
The IAC is part of the throttle body.
Did you check for codes? Try this: with the truck not running, turn the key to RUN (don't start the truck), then OFF, back to RUN, then OFF, then leave it in RUN. Any codes will display in the odometer window. It will say P DONE when complete.
Let the truck help you diagnose any problems.
Thread Starter
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Rookie
Joined: Aug 2014
Posts: 67
Likes: 0
From: Southwest VA
DD,
No codes (I don't have that tool, although I'm sure my mechanic does); no obvious lights. The truck just likes to not idle, which is really funny because it didn't any of that when we took it out for a test drive (I just bought the truck less than a week ago).
Thread Starter
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Rookie
Joined: Aug 2014
Posts: 67
Likes: 0
From: Southwest VA
Ahhhhhhhh...sounds right. I'll go back today and look around again...not that I'm going to change anything, though.
Thread Starter
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Rookie
Joined: Aug 2014
Posts: 67
Likes: 0
From: Southwest VA
The cable you followed, from your description, is likely the cruise control servo. Was it mounted to the passenger side inner fender, near the front?
The IAC is part of the throttle body.
Did you check for codes? Try this: with the truck not running, turn the key to RUN (don't start the truck), then OFF, back to RUN, then OFF, then leave it in RUN. Any codes will display in the odometer window. It will say P DONE when complete.
Let the truck help you diagnose any problems.
The IAC is part of the throttle body.
Did you check for codes? Try this: with the truck not running, turn the key to RUN (don't start the truck), then OFF, back to RUN, then OFF, then leave it in RUN. Any codes will display in the odometer window. It will say P DONE when complete.
Let the truck help you diagnose any problems.
Passenger-side, inner fender near front? Yep; I think you and magnethead are correct.
I have not yet checked for codes using your method. That's pretty cool! So the display will show a flurry of codes? I'll post back what I find.
Thread Starter
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Rookie
Joined: Aug 2014
Posts: 67
Likes: 0
From: Southwest VA
The cable you followed, from your description, is likely the cruise control servo. Was it mounted to the passenger side inner fender, near the front?
The IAC is part of the throttle body.
Did you check for codes? Try this: with the truck not running, turn the key to RUN (don't start the truck), then OFF, back to RUN, then OFF, then leave it in RUN. Any codes will display in the odometer window. It will say P DONE when complete.
Let the truck help you diagnose any problems.
The IAC is part of the throttle body.
Did you check for codes? Try this: with the truck not running, turn the key to RUN (don't start the truck), then OFF, back to RUN, then OFF, then leave it in RUN. Any codes will display in the odometer window. It will say P DONE when complete.
Let the truck help you diagnose any problems.
No codes...just the "P DONE." I'm thinking that's actually a good thing??
I apologise for the miseading info on adjusting idle. I have a couple of older cars and I can on them, but on newer, OBD2 cars, you cannot adjust it. Asd stated, you can remove/clean the IAC, but sometimes just cheaper and easier to replace it. They are not that expensive and can be replaced in a matter of minutes. Take some pics of what you were looking at and post them on here. It would be easier to explain that way.
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Rookie
Joined: Aug 2014
Posts: 67
Likes: 0
From: Southwest VA
I miss my truck!
Ok...so I just got the thing a week ago. And my mechanic picked it up just yesterday. But, dang!
We got a 15-minutes-long downpour yesterday and the road up to my place looks like a mini Grand Canyon.
SIGH
Hopefully I'll have it back within 2 weeks. And it'll be working like a charm. Can't wait!
Thanks to everyone for the information and whatnot. I hope to post pics and more information once I get the thing back.
Now if I could just come up with a name for him/her....
We got a 15-minutes-long downpour yesterday and the road up to my place looks like a mini Grand Canyon.
SIGH
Hopefully I'll have it back within 2 weeks. And it'll be working like a charm. Can't wait!
Thanks to everyone for the information and whatnot. I hope to post pics and more information once I get the thing back.
Now if I could just come up with a name for him/her....