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Zach
Dodge Dakota
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2/08/2008
16:11:21
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 Subject: Idling problem? 1993 5.2L
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Message:
Normally when I start my truck up, it idles around ~600 and stays about there when driving for a while. About 5 days ago (Monday), my problem started happening again. If I let off the accelerator too quick, my RPMs drop like a rock to about ~250 before dying on me. If I take my foot off slowly, however, the RPMS stay around ~550.
I've heard everything from idle control valve to the EGR valve to the alternator, which I doubt because my battery stays charged. From my limited knowledge of vehicles, it seems like it has to do with a vacuum somewhere.
I had this happen to me once before last fall and it went away on its own.
If it helps, it's an automatic and I'm not using A/C. I'm running a little low on oil right now. My wheels are usually straight when I take my foot off the gas.
My dad and I are going to try and figure out what it is this weekend so if you guys have any ideas, I need answers quick.
Thanks in advance for everyone's help.
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miltonwaddums
Dodge Dakota
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2/08/2008
16:37:09
|  RE: Idling problem? 1993 5.2L
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Message:
FWIW, my 2000 3.9 did that, except it was a 5 speed and thus usually didnt kill the motor (since I was probably in neutral or clutch disengaged). Since it wasnt really ever an issue, I never fixed it.
I'm only saying this because my truck was non-EGR, so I'm guessing that it's independent of IAC/EGR issues.
Vacuum problems are a good place to start and given the reputation for the old magnum and LA engines, the belly pan gasket might not be a bad place to start.
My $.02, good luck and let us know how it turns out.
Jay
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bugsy
Dodge Dakota
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2/14/2008
11:32:10
| RE: Idling problem? 1993 5.2L
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Message:
hello if you have fixed this problem or have figured out what is causeing it could you please tell me because my 1996 dakota 5.2L isdoing the exactsame thing... its the third time now since ive owned it and it usally stops after a day or to but i would really like to get it fixed
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hey
Dodge Dakota
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2/14/2008
12:16:13
| RE: Idling problem? 1993 5.2L
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Message:
try removing the TB
a new gasket is cheap
clean the TB and the IAC motor
unless your in bad need of a tune up
most times its the cause of idle problems
if after cleaning the TB and IAC problem still
persists then get a volt meter and check the TPS for proper function
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Michael 95
Dodge Dakota
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2/20/2008
00:03:08
| RE: Idling problem? 1993 5.2L
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Message:
I had the same problem with my 95 5.2L. I removed the IAC and used some electronic cleaner to clean the part that sticks into the throttle body. Do not push or pull the pintle in or out with your hand. Just clean the parts that you can see. This part is supposed to open up fully when there is a sudden DE-acceleration. If it is caked with grime the pintle will not move.
You can test the TPS with a voltmeter. The IAC test requires an IAC motor exerciser tool. Probably not worth buying for this test.
I would clean the IAC and see if the condition improves. If it does, you can get a new IAC for about $42.00.
About the cleaner, use something that evaporates quickly. You don't want to use anything that will corrode the rubber boot on the pintle.
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jacob
Dodge Dakota
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5/10/2011
01:45:22
| RE: Idling problem? 1993 5.2L
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Message:
Hi there I'm having the same sort of problem with my 93 dakota my idle speed motor seems to be the problem I looked in my book and it said that the pintle needed to be an inch or less for the 2.5L I have the 5.2L and my pintle is adjustable I was wondering how lwhat the measurement is for the 5.2L?
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