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Dodge Dakota Engine and Underhood Questions

378 messages,  Last post on Nov 25, 2009 at 9:20 PM

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What is this discussion about? Dodge Dakota, Engine, Truck


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#213 of 378
Dakota underhood "issues" by sickofny
Dec 15, 2007 (5:37 pm)
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I have a 1993 Dakota with a V6 and standard shift, I bought a wrecked 1995 with a 318 in it and a auto shift. I used all the wiring from the truck the 318 came out of and the computer also. The install went easy and the truck runs awesome, BUT now the code 12 Mem power loss and all the transmision codes for the automatic comes up because the whipes were left unhooked. Now the truck will run fine but when putting it in the forward gears it will drive for a undetermined length of time or distance and shut right down, the tach drops to 0 and the engine slowly dies down to nothing. Now I took it for a ride last week and it did ok but it of course died and wouldnt stay running when shifted from park to 1st gear etc. , I tried it in revearse and it ran great and I drove it in revearse all the way home about 5 miles and it didnt die out at all untill I pulled in the driveway and went to pull it forward into the parking spot and it died. HELP!!! I want my dakota back for the winter, Thanks ahead of time for any replies
#214 of 378
Cruise Control doesn't work by rolandtignor
Dec 17, 2007 (7:33 am)
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My cruise control doesn't work. I checked the fuse and it's fine.
I have a 93 dodge dakota V6. 3.9L
I've been searching for seven years on how to fix the problem.
Any help would be appreciated.
Thanks
#215 of 378
Re: Cruise Control doesn't work [rolandtignor] by stinky324
Dec 21, 2007 (5:38 am)
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Replying to: rolandtignor (Dec 17, 2007 7:33 am)

Does speedo work? check for codes for speed sensor fault Check throttle cable for cruise control
#216 of 378
Running rich by stinky324
Dec 21, 2007 (5:45 am)
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2000 4.7 Dakota. All systems check good reads po171 lean.....Should be simple Tried every thing, but blows black smoke. 02 sensors working no leaks data all good. even tried ecm.Any one had same problem.
   Thanks
#217 of 378
Re: Running rich [stinky324] by bpeebles
Dec 21, 2007 (7:02 pm)
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Replying to: stinky324 (Dec 21, 2007 5:45 am)

The computer *thinks* the engine is running lean but it is blowing black smoke (running rich). This really points to a problem with the O2 sensors.
 
The 2000 4.7L was available with 2 emmissions packages depending on where your truck was sold.
 
1) The "standard" emmissions package had 1 catalitic converter and one O2 sensor.
 
2) The "boarder state emmissions package" had 3 catalitic converter and 4 O2 sensors.
 
Which emmissions package does your 2000 have?
#218 of 378
Re: Running rich [bpeebles] by stinky324
Dec 22, 2007 (6:07 am)
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Replying to: bpeebles (Dec 21, 2007 7:02 pm)

2 O2 1 cat both o2 been changed....thinking fuel presser regulator 45psi still but maybe too much volume?
#219 of 378
Re: Running rich [stinky324] by bpeebles
Dec 22, 2007 (5:04 pm)
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Replying to: stinky324 (Dec 22, 2007 6:07 am)

Not the fuel pressure (or flow)!
 
Since the computer is reporting a "lean" condition... then it is the computer which is telling the injectors to squirt too much fuel (and blow black smoke)
 
You need to keep looking into why the computer *thinks* the engine is running too lean.... this is usually the MAP sensor or the O2 sensors.
 
A good diagnostic software installed on a laptop computer can actually show your all the signals going into the computer. (Including the MAP and O2 signals) That is what I use to diagnose these kinds of issues.
#220 of 378
Re: Running rich [bpeebles] by stinky324
Dec 24, 2007 (5:22 am)
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Replying to: bpeebles (Dec 22, 2007 5:04 pm)

I snap-on scanner on truck all sensors working, but I am looking at vacuum changing from 16" to 13'' and back but have not found vacuum leaks. Even pulled intake off to look for cracks . Throttle body sounds like it's pulling a lot of air. I've been looking for leaks. as vacuum changes so does map voltage. Funny I'm ase cert master tech, been fixing every one elses car, truck or motorcycle but my own. Thank you for any input.
#221 of 378
Re: Running rich [stinky324] by bpeebles
Dec 24, 2007 (12:43 pm)
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Replying to: stinky324 (Dec 24, 2007 5:22 am)

Are you suggesting that the MAP sensor is showing some kind of "spiking" in its vacuum readings? If the vacuum is not *actually* spiking, then consider flaky electrical conneciton to the sensor. Bad electrical connections can REALLY confuse the engine-computer into doing all kinds of goofy things.
 
As a professionl technician , somtimes you have to think "outside the box". Ask youself what else besides the obvious can cause the engine-computer to *think* the engine is running too lean.
 
I have heard of a weak battery causing Dakota engine-computer to behave weird.... have you validated that the battery is fully charged and all cells check out with hydrometer?
#222 of 378
engine swap by dodgeit07
Dec 25, 2007 (6:42 pm)
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i want to put a small block 350 in my dakota but before that i want to do a frame swap dose anyone know what kind of frame i should go to?

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