Tune Up
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Junior User
Joined: Dec 2002
Posts: 54
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From: Indianapolis
Tune Up
I did a tune up on my '91 XLT and now it seems to be idling a tad bit low. I changed the air fliter and replaced it with a K&N dropin filter, I put new wires, 6 out of 8 plugs, distributor cap, and rotor. What could I have done to cause the lower idling. It idles at about 500 RPM 
Senior User
Joined: Oct 2002
Posts: 189
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From: Texas A&M
Tune Up
If you can't figure it out, you can always do a manual adjustment on the throttle itself. Just tighten or loosen the screw until it holds the wire at the idle you like. You can only change it by small increments in this way. To get the computer to adjust to the new setting after you make the change, take it and drive it at a nice constant speed - 60 on the highway or something - for a few miles.
Senior User
Joined: Nov 2002
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Tune Up
yeah well i admit it probably needed a tune up but me personally I think I would have waited till I all the tools. Not pokeing fun but it is a little weird that you started a job that you couldn't finish.
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Tune Up
I quote the author Robert Aspirin: "I am not a fast writer; I am not a slow writer. I'm a half-fast writer." 
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Junior User
Joined: Dec 2002
Posts: 54
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From: Indianapolis
Tune Up
Yeah I did do it half "assed" since I have never dona a tune up on any car I can only rely on books and manuals to tell me what I need and the Haynes book about Broncos said a Spark Plug socket and wrench. It did not say that I might need an adapter b/c of how the plugs were arranged. I am just a beginner at this mechanic stuff, that is why I am here to gain knowledge through asking questions. Sorry I am not a Bronco Guru that has been working on trucks for the last two decades, but thanks for the info!
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Freshman User
Joined: Nov 2002
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From: usa
Tune Up
Welcome to the world of the weekend mechanic!! Don't take it to heart what some of the people say. Everyone knows that in one point in their lifetime, they have done something half-assed and learned from it. And guess what...you just learned you need an extension!!
This place is a great place to learn, and never be afraid to ask even the silliest of questions. If you don't ask and you screw up..you'll be
yourself!I've picked up a few tips and tricks just being here for the past month or so. I'm new to Bronco's, but not new to engine work. I always remember the half-assed things I've done, and I DON'T do them anymore...live and learn.
Have a question...post it. Ignore the people who don't understand that not everyone is a pro. I'd say that almost all the people I've seen post here are friendly and were in your place once before.
Happy Holidays....:-X12
Post Fiend
Joined: Nov 2002
Posts: 9,987
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From: Memphis, TN
Tune Up
[updated:LAST EDITED ON 16-Dec-02 AT 07:28 PM (EST)]I wasn't raggin' on ya, man! 
Just kiddin' around! 
If you read the front of that Haynes manual, it WILL tell you all the tools you need, and even how to ID a bolt by looking at the head. 
That's how I went from being a commuter to a backyard mechanic. 
Just kiddin' around! If you read the front of that Haynes manual, it WILL tell you all the tools you need, and even how to ID a bolt by looking at the head. That's how I went from being a commuter to a backyard mechanic.
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Junior User
Joined: Dec 2002
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From: Indianapolis
Tune Up
I was finally able to get those last two plugs out ( they had been in there so long the porcelin around the tip cracked and broke off while trying to unscrew them) He's all tuned up and ready to go now though and I did learn a good lesson, thanks!
Happy Holidays :-X12
Happy Holidays :-X12
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Joined: Nov 2002
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Tune Up
Yeah I wasn't trying to put you down. By no way am I a professional mechanic i'm just a weekend warrior on my truck. I was just kidding around not to be taken personal, and its good that you were finally able to finish the job. As steve83 did mention that repair manuals do tell you what you need. Also I was just trying to say that maybe when starting the replacement of the spark plugs you would have noticed that the correct tools wern't present. Sometimes when everything isn't changed at the same time you can cause yourself more problems then you want. For example having to replace more spark plugs, or other things because the sparks aren't happening at the right times. And I was just kidding not to be taken seriously.
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