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Timothy
Dodge Dakota
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3/08/2012
21:24:42

Subject: '92 dakota 5.2L 318 Idling rough
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One morning the Dakota would not start...106,000 miles....turned over fine, smelled flooded...I purchased new plugs, wires, dist cap, rotor...it started right up, but as soon as it warmed up, it idled really rough, sometimes died.
Installed new IAC, new crankshaft position sensor, new O2 sensor...still the same thing....checked all other sensors , all ok...no trouble code (only 12 & 55)either by engine check light or reader ll I borrowed from parts store. Then one day it wouldn't start at all again. Smelled flooded...by now I have pulled all my hair out...I am asking for dynamite...
I pulled the battery out and put it in a different vehicle. Today I decided to put a new battery in the dodge...It started right up, warmed up and started idling bad again.
Checked all the grounds, thinking something is not getting enough power...all are ok now...
It starts every time... idles good until warm, and it seems to run high rpm ok...2000...
the new battery really seemed to help...
PLEASE HELP!



Timothy
Dodge Dakota
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3/08/2012
22:04:58

P.S. RE: '92 dakota 5.2L 318 Idling rough
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I just went out to check for sparks/shorts in the dark & remembered something....when it does start running rough-it sounds as if it is 'gasping' for air...then when the gasping noise goes away the engine smooths out....maybe another clue in this mystery of the internal combustion engine...



UN FRIJOLERO
Dodge Dakota
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3/08/2012
22:08:03

RE: '92 dakota 5.2L 318 Idling rough
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CHECK YOUR FUEL PRESSURE GET A FUEL PRESSURE GAUGE KIT AND HOOK IT UP BETWEEN YOUR FUEL LINE AND YOUR FUEL RAIL WHERE THEY CONNECT SHOULD HAVE 50-65 PSI MKAY??



Timothy
Dodge Dakota
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3/08/2012
22:16:59

RE: '92 dakota 5.2L 318 Idling rough
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Thanx for the reply....I checked the fuel pressure on the fuel rail with the test outlet....I ran the engine 5 min. or so ...the fuel pressure read 39 lbs...right where the service manual says it should be..



dakownr
Dodge Dakota
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3/08/2012
23:03:46

RE: '92 dakota 5.2L 318 Idling rough
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having a bad battery or disconnecting the power will reset your computer, resulting in it haveing to "relearn" all the different parameters for running. The idle will be noticeably affected, also. Not sure if the battery is the cause of all your probs, but if you know it is good and after a few hundred miles the truck still runs like that, then it is something else.



Curly
Dodge Dakota
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3/09/2012
08:40:47

RE: '92 dakota 5.2L 318 Idling rough
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As the truck is a 92 it could also be the #115 wire
splice starting to go south.



Timothy
Dodge Dakota
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3/09/2012
16:15:04

RE: '92 dakota 5.2L 318 Idling rough
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Thanx for the replies....now, this morning it started fine and I moved some trailers around my property with it for an 1/2 hr or so, the shut it off...later it didn't want to start..,..I pulled a plug, it was wet...I finally got it to start....
Curly can you help with the 112 wire...what is it and wwhere does it go?
Any help is greatly appreciated!
Thanx



Curly
Dodge Dakota
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3/09/2012
18:18:42

RE: '92 dakota 5.2L 318 Idling rough
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Hi Tim,
Under the hood drivers side inner fender well.
Check to see if you have a black fuse\relay box.
If so post back and I'll walk you through it,
If memory serves me right it was 92-96 that had
the splice issues.
(I'll be checking back)


















Timothy
Dodge Dakota
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3/09/2012
18:49:45

RE: '92 dakota 5.2L 318 Idling rough
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Ya, I got the black fuse/relay....I cleaned & rebuilt the + & - from the alternator & battery - to the fuse box...I've been tugging gently on all wires while I'm cussing the truck....nothing seems to be it....I cleaned & re-lubed the computer plug....
I'm really leaning toward replacing the ERG system...after all, it's only money...but with the gasping for air and the fact that it mostly runs fine when cold, makes me think....
No hurry on a reply...I've been at this nearly a month....We may go snowmobiling this weekend



daddio
Dodge Dakota
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3/09/2012
20:18:26

RE: '92 dakota 5.2L 318 Idling rough
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Have you checked for any codes yet? that is the best place to start.



Curly
Dodge Dakota
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3/09/2012
21:42:57

RE: '92 dakota 5.2L 318 Idling rough
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EGR failure would cause a bad idle but not wet
plugs. So you have replaced the wire splice behind
the fuse box?

If no codes only other things that come to mind are
weak coil or crank sensor.



Timothy
Dodge Dakota
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3/11/2012
16:32:00

RE: '92 dakota 5.2L 318 Idling rough
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No codes, only 12 & 55, which are normal....put in a new crank sensor...
Have not replaced or checked the splice behind the fuse box...I'll look at that right now and post back....today is one of those days it won't even start!



Timothy
Dodge Dakota
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3/11/2012
23:17:41

RE: '92 dakota 5.2L 318 Idling rough
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Ok, guys...thanx for trying....thank-you for the replies...it means the forum works...
IT WAS THE COIL! I CHANGED IT OUT ON A WHIM AND IT RUNS GREAT....
Everything else I changed or fixed just made it run better...
Again, thanks for the help...
Anyone up for elk hunting this season....get hold of me, I'd be happy to take you out! The elk live in my backyard.
Timothy...4vaccas@bresnan.net



Curly
Dodge Dakota
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3/12/2012
09:36:25

RE: '92 dakota 5.2L 318 Idling rough
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Right on Tim, Glad to hear you got it fixed.
Enjoy the ole gal, I have a 94 sport myself and had
her for just over 12 years. The most reliable &
dependable thing I've ever owned.



christopher P
Dodge Dakota
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4/21/2022
15:12:20

RE: '92 dakota 5.2L 318 Idling rough
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would like to see a picture of the fuse box being
discussed in this forum i bvelive it might have
something to do weth why my truck is runniong the
way it is





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