How to test IAC Jeep 5.2? - JeepForum.com
 
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post #1 of 3 Old 09-19-2013, 05:01 PM Thread Starter
STRRAYNGE
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1993 ZJ 
 
Join Date: Oct 2012
Location: Wellington
Posts: 125
How to test IAC Jeep 5.2?

Can anyone point me in the direction I need to test my IAC as far as what Ohms and volts I should have? I tried a search, and looked all over google, but couldnt find anything for the 5.2? Any help is much appreciated.


1993 Jeep Grand Cherokee ZJ. 7" Clayton Long Arm Lift, 9" rear w/currie high pinion, D44 Trussed front axle, High Steer, chrome moly axles front and rear, ARB's front and rear, 35" BF Goodrich KM2's, Trail Ready front bumper with winch, custom rear with swing out tire carrier, etc, etc.
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post #2 of 3 Old 09-20-2013, 06:17 AM Thread Starter
STRRAYNGE
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1993 ZJ 
 
Join Date: Oct 2012
Location: Wellington
Posts: 125
Ok, let me ask this instead. So to see if the motor was even working, I pulled it, and powered on the ignition to see if it would at least move, which is what I read on some other threads. When I did that, it just unscrewed all the way out and the spring sent the pintle flying. It didnt damage it, and it screwed right back in, but my question is, should it have just unscrewed it all the way like that, or should it have stopped??

1993 Jeep Grand Cherokee ZJ. 7" Clayton Long Arm Lift, 9" rear w/currie high pinion, D44 Trussed front axle, High Steer, chrome moly axles front and rear, ARB's front and rear, 35" BF Goodrich KM2's, Trail Ready front bumper with winch, custom rear with swing out tire carrier, etc, etc.
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post #3 of 3 Old 09-20-2013, 11:30 AM
zjosh93
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1993 ZJ 
 
Join Date: Aug 2010
Location: Austin
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There's nothing keeping the pintle from unscrewing. I've never tried to start it with the IAC off the throttle body but I have unscrewed the pintle for cleaning. Just pull the spring down so it doesn't catch on the pintle and screw it back down. You want to make sure you screw it down enough that the pintle doesn't jam against the throttle body when you tighten the IAC down. This will also make your idle speed pretty high for the first minute or so after you start it. Mine usually shoots up to 2000 rpm and slowly drops back down to normal in 200 rpm steps over the next minute. If it does that I'd tend to think it was good.
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