How to test an IAC valve/motor - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
Thread Tools
post #1 of 1 Old 06-18-2019, 08:32 AM Thread Starter
Registered User
Join Date: Aug 2013
Posts: 14
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
(Thread Starter)
Exclamation How to test an IAC valve/motor

I am wondering if there is a procedure to test the IAC in my 2004 Ram 1500 SLT 4x4 w/ 5 speed MT. 4.7L V8

How can I tell if the part is working correctly? If I disconnect the connector and start the truck and keep my foot off the accelerator then it stalls within 5 seconds.
Which I assume is correct since I would assume when you shut the truck off the PCM tells the IAC to close to STOP all air into TB to shut off.
Then if I disconnect connector the last position of IAC is closed hence starts but stalls due to no air.

If disconnected and I give it throttle it does run.

Might be an academic question but it is the PCM that controls the IAC? Correct? I assume its based off of readings from the TPS & MAP perhaps?

So if anyone knows of a way to test the IAC to say if its good or bad I would much appreciate it.
kevaug is offline  
Quote Quick Reply
Sponsored Links

Quick Reply

Register Now

In order to be able to use most of our features, you must first register.
Please enter your desired User Name, your Email Address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
The registration process requires you to activate your membership by following a link in an E-Mail that will be sent to you immediately upon completing this form. You must enter a valid email address or you will not receive this activation code and you will NOT be registered. Your E-Mail address is NOT publicly available to anyone as policy.

AOL E-MAIL USERS: Please click HERE for important info pertaining to your e-mail address.

Email Address:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Forum Jump

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

For the best viewing experience please update your browser to Google Chrome