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Toyman
Dodge Dakota
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2/26/2004
20:00:08
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 Subject: 1994 Dakota 3.9 stalling
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Message:
I am having a stalling/idle problem with my 3.9L. The motor runs fine untill you let off the gas to stop, it will idle rough for a second then will quit about 50% of the time. Runs at 600 - 700 rpm when it does idle. When gas pedal is pressed and let off in neutral the idle will dive to 400 or so and sometimes recover and sometimes engine will quit. I have cleaned the carb, changed the pvc valve, new plugs, nothing has helped. Anyone have any ideas?? Thanks
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GB2000
GenIII
2/26/2004
23:28:47
| RE: 1994 Dakota 3.9 stalling
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Message:
Clean the IAC...
Josh
Red 98 RC V6 2wd Single in/dual out exhaust (soon to be switched to a flowmaster 40 single in/dual out), s-bolt "mod", Edelbrock 10" round air cleaner w/ K&N air filter, removed rubber flap...and more to come
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capone
Dodge Dakota
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2/27/2004
00:38:50
| RE: 1994 Dakota 3.9 stalling
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Message:
Yeah, its probably the Idle Air Controller. I had the same
problem on my '94 3.9, and when I installed a new IAC it worked
like new.
-capone
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daffydak
GenIII
2/27/2004
00:49:02
|  RE: 1994 Dakota 3.9 stalling
IP: Logged
Message:
yeah i have to agree that the iac, and likely the whole throttle body needs cleaned. heres how;
http://www.speedtweaks.ca/tipsandtricks.php#CleanIAC
speedtweaks is a great site i visit it often
hope i helped
Dan
mopar=mopower
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bc/canada
Dodge Dakota
JOIN HERE
2/27/2004
12:22:50
| RE: 1994 Dakota 3.9 stalling
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Message:
my 94, started, ran, would idle at a stop line ok, IF it made it throught the idle drop. Mine would mostly stall in a parking lot when I would feather the gas to manouver around or when backing out of the garage and I dropped the tranny to drive. At this time the idle would drop as per normal but would not recover.
I took it to dodge after I had cleaned the TB and IAC and they scoped it. EGR valve was the prob and this would cause the valve to open at the wrong time thus messing up the idle.
$85 part, $300 total bill including labour. Any backyard mech can change it
The EGR is on the pass side rear of the TB next to the dist cap.
My truck had 165K km, never cleaned the TB before or the IAC(what a mess it was) original EGR and O2. Dodge sated the O2 was fine.
Hope this helps
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dakotagirl
Dodge Dakota
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2/27/2004
13:25:31
|  RE: 1994 Dakota 3.9 stalling
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Message:
I have a 1999 dakota sport. it kept stalling on me the way everyone else's does. I took i tot my mechanics and they said it was due to alot of carbon build-up from a FAULTY carburator. It was covered under warrenty. I only have 48,000 miles on it and I've had lots of problems. Love the truck but not sure what to expect in the future....
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dakotagirl
Dodge Dakota
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2/27/2004
13:29:59
| RE: 1994 Dakota 3.9 stalling
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Message:
Sorry....No carburators in 1999's.....I meant catalytic convert. It was faulty and covered under an EPA warrenty. Sorry, I'm blond!
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daffydak
GenIII
2/27/2004
14:00:33
|  RE: 1994 Dakota 3.9 stalling
IP: Logged
Message:
lol i knew what you ment :-) my cat isn't showing any signs of needing replacement yet (98 v6 rc 51,000 miles) hope it lasts longer than 60k
just my .02
Dan
mopar=mopower
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Toyman
Dodge Dakota
JOIN HERE
2/28/2004
07:25:24
| RE: 1994 Dakota 3.9 stalling
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Message:
Thanks for all the help. I cleaned the IAC, needed it, was all full of carbon. Idles better but still stalls, any more ideas out there?
Thanks
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boguspete
Dodge Dakota
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2/28/2004
07:47:24
| RE: 1994 Dakota 3.9 stalling
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Message:
Toyman - what grade gas u running - I noticed when mine acts up it's cause I've put 92 octane in her. If I back down to the 87, she runs better and my stalling goes away!
Go fill up with 87 octane and do a computer reset. (just to make sure) - See if this helps.
** See my post on intermittent stalling, sounds like we have about the same prob!
Chris
http://www.dodgedakota.net/boards/v6/8146.html
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bc/canada
Dodge Dakota
JOIN HERE
2/29/2004
17:18:38
| RE: 1994 Dakota 3.9 stalling
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Message:
I cleaned the IAC and it still stalled.
I would replace the EGR valve. It appears to be opening too slowly. If the truck starts idles runs fine UNTIL a slight strain, such as in feathering the throttle to get around the parking lot or changing from reverse to drive.
just my two cents
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Jay
Dodge Dakota
JOIN HERE
12/07/2004
14:57:15
| RE: 1994 Dakota 3.9 stalling
IP: Logged
Message:
Hi I am having a similar stalling issue with my 1999. However it runs beautiful for about 20 minutes then it just stops running suddenly. I have noticed a no "bu5" message appear on my odometer. I have had trouble getting it restarted until I noticed that disconnecting and reconnecting my computer seems to do the trick. I told my dealer this and they put new spark plug wires on and it didn't fix the problem. I think I need a new computer or electrical harness but my dealer disagress with me. Has anyone had a similar problem?
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jacktoff69
GenIII
2/07/2007
22:46:51
| RE: 1994 Dakota 3.9 stalling
IP: Logged
Message:
check down yur throttle body with the trottle open and see if there is oil u may have a leaking phlenum gasket.
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Bkbbman
Dodge Dakota
JOIN HERE
1/24/2017
01:04:46
| RE: 1994 Dakota 3.9 stalling
IP: Logged
Message:
Have a 1994 dodge dakota 3.9 keeps
stalling when go to stop.changed the egr
crankshaft sensor air them sensor and
still stalling.need help please!!!!!!
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