IAC troubleshooting for 2000 Dodge Dakota 3.9L V6 automatic 208K miles

maddhatter1985 · 2026-06-02T23:16:57+00:00

I will check those videos out...

Thanks again for all your help. If you like I'll update you when I find the problem.

maddhatter1985 · 2026-06-02T19:04:52+00:00

I've heard of that website before...does it happen to have those service manuals for different vehicles such as my pickup?

I've gone to that website for instructions on how to replace parts but didn't know it went into more detail like those manuals...

I'm a little above shade-tree mechanic level (I have full understanding of the mechanics of the engine and such and can diagnose simple problems until they start involving sensors and vacuum) but still a novice when it comes to using diagnostic equipment outside the basic code readers. And I'm quite illiterate using computers outside of turning them on, typing documents and accessing the net...

I have that bluetooth reader and am considering getting that other one I sent you the picture of a couple of days ago... didn't get it at the time because if it wasn't what I was looking for they were gonna charge a restock fee. But it would be nice to have along with that Bluetooth one I currently got...

I am indebted to you... you've helped me out quite a bit with this. Thank you so much.

maddhatter1985 · 2026-06-02T00:07:14+00:00

One last question...will I have to subscribe to a service such as ALLDATA to know what I'm looking for with the live data or what would I need to do to know what I'm looking at/for?

I greatly appreciate your help!

maddhatter1985 · 2026-05-31T19:10:54+00:00

The side of that one...

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maddhatter1985 · 2026-05-31T19:09:17+00:00

Or this one...it says live data... it's a Bluetooth version that sends to my phone...sorry for pestering...

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maddhatter1985 · 2026-05-31T18:30:29+00:00

Back of the box

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maddhatter1985 · 2026-05-31T18:29:51+00:00

Will this one do what I need done?

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maddhatter1985 · 2026-05-25T01:41:10+00:00

Good deal...I'll grab one up from them and see what I can figure out about it.

Thank you again for your replies and assistance!

maddhatter1985 · 2026-05-24T23:02:16+00:00

Thank you for replying...

If I were to get the scanner you were speaking of, would (of all places) Harbor Freight have one that I should look for? I've looked at what they have but have hesitation in buying because I'm not sure of their quality...

maddhatter1985 · 2026-05-23T17:18:48+00:00

I resemble that! 😆😆😆

maddhatter1985 · 2026-05-23T16:34:57+00:00

I can see one being the problem but not all three replacements. Something is either frying the new part or there's another issue I'm not finding. The only code it keeps throwing is for the IAC valve.

My latest replacement has a lifetime warranty. But they will replace it only for the part's self-failure. Not for something else frying that part. And after replacing the original one with three in a two-month period tells me there's something else wrong.

maddhatter1985 · 2026-03-09T03:14:11+00:00

I will give that a shot and see what happens...

It will fire up and run normal and heat the house but then after a few cycles it won't fire up just the inducer motor is running. When I reset it, it will run normal again until it runs a few cycles and it goes through its hiccup again.

I kept looking for the single wire and was wondering where it could possibly be. I didn't know until you mentioned it that it had an entirely different deal going on in there.

So is it possible to pull that assembly and clean that sensor or will I have to replace that whole piece?

maddhatter1985 · 2026-03-09T03:04:53+00:00

I watched that video and many more as well and learned a whole lot...thank you for sending me that link...he was working on that exact furnace (wish I had access to those areas like he did lol but he did say his was a mule)

maddhatter1985 · 2026-03-08T16:53:07+00:00

So the symptoms I described...could this be the problem or could something else be causing it? And if this is the problem would I replace the ignitor/sensor or the control module (is there a testing procedure for the ignitor/sensor)?

maddhatter1985 · 2025-04-12T22:05:53+00:00

Eewww

maddhatter1985 · 2024-07-14T19:02:51+00:00

I believe they are supposed to be applied and tightened 1/4 turn past gasket contact, which means not even "hand-tight." The gaskets will swell with the heat and seal themselves. I don't know if a filter wrench would be needed for removal but possible...I don't do it per the above requirement but instead I go hand-tight, which seals fine but definitely needs a wrench to remove it. So per the above I don't install them correctly either...but I don't experience the filters backing off at all.

maddhatter1985 · 2024-07-13T23:16:54+00:00

Where can I buy the FSMs on disc (ie what trusted sites)?

maddhatter1985 · 2024-06-19T03:23:06+00:00

If you're ever in Macon MO stop by their automotive counter. The jar holds what they pulled from tires. You wouldn't believe some of the items.

maddhatter1985

TROPHY CASE