Last post on Nov 11, 2013 at 11:15 PM
You are in the Dodge Dakota-2010 and older
What is this discussion about?
Dodge Dakota, Truck
#49 of 194 Re: 2002 3.9l Dodge Dakota with automatic transmission that stalls in reverse. [dustyk]
Mar 04, 2009 (11:05 pm)
Dustyk, thank you very much for that detailed response. I cant wait to get started. I'll try to be careful removing/installing that plunger so I dont damage it. I hope thats the problem? Because I'd hate to see such a beautiful looking truck continue to act like it's a
One more question. Can this gummy buildup have any effect on fuel economy? Like maybe less air in the throttle body causing a richer fuel/air mixture???
#50 of 194 Re: 2002 3.9l Dodge Dakota with automatic transmission that stalls in reverse. [dustyk]
Mar 06, 2009 (7:30 am)
I believe I've found success. Since I've cleaned my IAC unit, I havent experienced any stalling. Thanks to all for their input and help.
#51 of 194 Re: 2002 3.9l Dodge Dakota with automatic transmission that stalls in reverse. [mrsincere7]
Mar 07, 2009 (11:14 am)
To answer your question about the effects of IAC operation affecting fuel consumption, possibly. I'm not sure how much it would affect gas mileage, however.
When the Powertrain Control Module (PCM) senses that the vehicle is reducing speed, the PCM tells the IAC motor to retract the pintle and close the idle air passage, If the pintle sticks and does not close the idle air flow passage, it would be equivalent to having an excessively high idle or opening the throttle partially on a carbureted engine.
If fuel consumption seems higher to you, there are a whole bunch of other things I'd check first.
Glad to hear cleaning the throttlebody solved your problem.
#52 of 194 Re: 2002 3.9l Dodge Dakota with automatic transmission that stalls in reverse. [dustyk]
Mar 20, 2009 (3:50 pm)
Just a brief update. I decided to buy a brand new IAC motor. Even though I cleaned my old one, I believe it's benefits were short lived. I started experiencing some stalling on occasion while in reverse. Considering my old IAC may have been an original part, ( my Dakota is a 2002 ) I decided to install a new one. So far, ( it's been a week ) no stalling and the idle appears to be much smoother than when I cleaned and reinstalled my old IAC motor.
#53 of 194 Re: 2002 3.9l Dodge Dakota with automatic transmission that stalls in reverse. [mrsincere7]
Mar 22, 2009 (10:54 am)
Thank you for the update.
Are you in a cold weather part of the country?
#54 of 194 Re: 2002 3.9l Dodge Dakota with automatic transmission that stalls in reverse. [dustyk]
Mar 22, 2009 (7:22 pm)
Are you in a cold weather part of the country?
Well that depends. I wouldnt consider it a consistent cold weather part of the country. I live in New Jersey. And lately it's been cold. We had less than 10 degrees F 2 months ago. Now were in the high teens to low 50's. F.
Is your question related to my problem possibly being poor performance of the IAC during cold weather?
FYI, I bought my Dakota in October 2008. It had 105,000 and now has 108,000. I believe I noticed the stalling way back in October, but assumed it needed a tune-up or something else.
It wasnt until recently, I started looking into other causes. Of course I always find a wealth of information here ( especially from you ) , and thats why I did a little research here and found what I needed.
#55 of 194 Re: 2002 3.9l Dodge Dakota with automatic transmission that stalls in reverse. [mrsincere7]
Mar 26, 2009 (2:00 pm)
I was just wondering if the problem seems more severe with temperature.
#56 of 194 Re: 2002 3.9l Dodge Dakota with automatic transmission that stalls in reverse. [dustyk]
Mar 26, 2009 (4:04 pm)
It may have been more severe as it got closer to winter with the old IAC. However since I replaced it with a new one, everything is smooth as silk even though we are still experiencing cold temps. Truck runs like it's brand new regardless of the temp. My buddy who replaced his IAC ( with a new one ) on his 01' Dakota has the same positive results. It was his results that prompted me to replace mine after cleaning my old IAC didnt last. I guess if the IAC is several years old, it's probably worth replacing it rather than cleaning it.
#57 of 194 Re: Stalling [cmccurdy]
Apr 25, 2009 (6:25 pm)
More than likely the crankshaft position sensor as mine seems to have gone and the symptoms seem the same but really a hard part to remove without patience and proper tools. Not too much room to work between the firewall and engine and transmisssion. I've just recently obtained a used one from the wreckers and it worked for all of about a couple of hours the died on the highway again. So now I think I'll spend the bucks and get a new oem replacement and see how long that one lasts?
#58 of 194 1992 5.2 engine problems
Apr 25, 2009 (6:36 pm)
I've owned my 1992 dakota 4x4 5.2 since new and haven't experienced too many problems until recently. It has 192000kms on it and have replaced the transmission, radiator, & water pump. The tranmission hasn't operated as it should since the rebuild by Mr. Transmission, the water temperature hasn't been what it should (both from reading the gauge and inside heater temperature) since replacing oem rad with an aftermarket one, oil pressure switch was replaced as low or flucutating oil pressure was observed, and now the largest and most annoying problem of all has been determining the problem of stalling, rough running backfiring hard starting, intermittent starting, being more than likely due to a faulty crankshaft position sensor. Replaced with a used one from wreking yard didn't last more than a couple of hours and died. Guess it'll be worth spending a few extra dollars on a new oem replacement and see if it last a bit longer?
Other than that it has been a good and enjoyable truck.