High Idle
Hotshot
Joined: Jun 2015
Posts: 12,791
Likes: 2,426
How would the cap, rotor wires, plugs and air/fuel filters cause a high idle?
How about unplugging the IAC to see what happens to the idle?
Fleet Mechanic
Joined: Oct 2025
Posts: 1,712
Likes: 375
I was going to see what he said about how it looked. Seeing as how it idles good when it’s warmed up and low during warm up enrichment, I would guess unplugging it wouldn’t cause the idle to return higher.
Mountain Pass
Joined: Feb 2017
Posts: 179
Likes: 57
From: Kentucky
Where did I state that they would fix a high idle? Maybe you should go back and read the whole thread before you start talking down to people. You seem to have a bad habit of doing that. This isn't grade school, in case you haven't noticed.
Hotshot
Joined: Jun 2015
Posts: 12,791
Likes: 2,426
I did and have several times before responding to see if something has already been covered. The thread is about a high idle. You asked how long it has been since a tune-up. I merely asked you what multitude of things could cause the problem and how old ignition parts could cause a high idle?
Mountain Pass
Joined: Feb 2017
Posts: 179
Likes: 57
From: Kentucky
I did and have several times before responding to see if something has already been covered. The thread is about a high idle. You asked how long it has been since a tune-up. I merely asked you what multitude of things could cause the problem and how old ignition parts could cause a high idle?
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Hotshot
Joined: Jun 2015
Posts: 12,791
Likes: 2,426
Liberated from someone’s post:
I don’t have the air temp sensor specs but I’m sure a little searching would find it
Fleet Mechanic
Joined: Oct 2025
Posts: 1,712
Likes: 375
Something like this is where a wideband O2 and gauge is great! I can help rule out if enrichment is dumping too much fuel or if the problem is elsewhere. I too have had more than a handful of crap parts out of the box. I got three remanned distributors in a row..
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5th Wheeling
Joined: Dec 2025
Posts: 32
Likes: 2
Well that certainly would do something, dirty as a dodge
Last edited by AvtomatKentucky101; Dec 20, 2025 at 11:53 AM.
Fleet Mechanic
Joined: Oct 2025
Posts: 1,712
Likes: 375
Judging by that, I would guess your intake needs a good bath!!! Clean won’t hurt, probably! Test it after you clean it to make sure it’s good. Check your pcv for more giggles. These intakes get nice and oily especially with an older non rebuilt motor! I have a catch can to assist with it.
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5th Wheeling
Joined: Dec 2025
Posts: 32
Likes: 2
Judging by that, I would guess your intake needs a good bath!!! Clean won’t hurt, probably! Test it after you clean it to make sure it’s good. Check your pcv for more giggles. These intakes get nice and oily especially with an older non rebuilt motor! I have a catch can to assist with it.
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5th Wheeling
Joined: Dec 2025
Posts: 32
Likes: 2
Welp I cleaned it and it seemed to change something, will drive it in the morning to see if it really changed anything it’s almost 60 Degrees F right now so not the most optimal time to test if it really worked. It felt like it hesitated on takeoff once but it seemed to do fine the rest of the time. As for it being fickle, I ended up breaking the plastic part the harness plugs into…. Uggghhh, but I have it temporarily glued until I get a new one so that might have caused the one hesitation I felt.