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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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#41 of 378
Re: 2002 Dakota SLT "Racing" idle problem [gphillippi] by jneal
Nov 06, 2006 (6:24 pm)
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Replying to: gphillippi (Nov 06, 2006 10:45 am)

Which engine/transmission do you have?
Have you checked for codes? If so, what were they?
#42 of 378
Re: 2002 Dakota SLT "Racing" idle problem [jneal] by gphillippi
Nov 07, 2006 (9:57 am)
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Replying to: jneal (Nov 06, 2006 6:24 pm)

I have the V8, auto trans and don't kow what you mean by codes? Thanks
#43 of 378
Re: 2002 Dakota SLT "Racing" idle problem [gphillippi] by jneal
Nov 07, 2006 (5:25 pm)
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Replying to: gphillippi (Nov 07, 2006 9:57 am)

I assume then that you have the 4.7 V8/automatic combo.
You stated in your first post that you are a mechanic of sorts but you don't know what trouble codes are??
The main computer detects and stores codes for any problems it detects. The Check Engine light will come on and normally stay on until reset but this isn't always the case.
Go by AutoZone and they will check/read any codes for free. If there are any stored codes, come back and post them and someone may can give you further guidance.
The only thing I can suggest, assuming that you did a competent job on what you have already done, would be to change the throttle position sensor. This is usually the culprit in a lot of drivability problems such as yours.
#44 of 378
Re: 2002 Dakota SLT "Racing" idle problem [jneal] by bpeebles
Nov 07, 2006 (6:48 pm)
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Replying to: jneal (Nov 07, 2006 5:25 pm)

I guess there are several folks that think they are mechanics 8-) ... There is no need to take your Dakota anywhere to "pull the codes"
 
I have posted this about 50 times and will say it again -
To get the codes from Dakota, do the following...
Without starting engine, turn key ON-OFF-ON-OFF-ON (then leave ON) - The odemeter display will now show the diagnostics running and will display any failing codes when it is complete. Write down any codes then turn the key OFF.
#45 of 378
Re: 2002 Dakota SLT "Racing" idle problem [bpeebles] by gphillippi
Nov 08, 2006 (7:46 am)
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Replying to: bpeebles (Nov 07, 2006 6:48 pm)

Well lets not get picky about being a mechanic. I don't have diagnostc systems for moderns, I restored antique vehicles. Anyway, Thanks for the trick, will use it.
#46 of 378
Re: 2002 Dakota SLT "Racing" idle problem [jneal] by gphillippi
Nov 08, 2006 (7:49 am)
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Replying to: jneal (Nov 07, 2006 5:25 pm)

Thanks, I will change out the tps, and am changing brake/tranny fluids with a flush just for grins as well.
#47 of 378
CRANK CRANK CRANK by manstang46
Nov 08, 2006 (2:34 pm)
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i have a 2000 quad cab 5spd w/ the 4.7l engine with 63k miles. my trouble is when you go to start the truck it will crank for a few seconds before it starts. sometimes you have to stop and start cranking again. occasionally it will spit and sputter before it actually starts, and runs smoothly, i replaced the plugs and that did nothing. i have read a couple differernet string saying maybe a crank sensor or maybe the fuel pump. also seems like the low end power isn't there like it was. thanks guys
#48 of 378
Evap Purge Solenoid by jgerrity
Nov 08, 2006 (6:28 pm)
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my engine light on my 99 dakota has come on with a temporary code for the evap purge solenoid. I had solenoid replaced but the light came back on with the same code. Any idea what this may be? and how to fix it?
#49 of 378
Re: Evap Purge Solenoid [jgerrity] by bpeebles
Nov 08, 2006 (7:00 pm)
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Replying to: jgerrity (Nov 08, 2006 6:28 pm)

The evaperative emmissions system has several diagnostics it runs thru and can throw several codes based on the outome of the tests. One should NEVER just replace the part that flagged a fail... it is most often NOT the source of the problem. (just a symptom)
 
To isolate a problem, one really needs to understand what each of the diagnostic tests are checking and how they are doing it.
 
For example, one of the evaperative emmissions diagnostics uses a soliniod to seal off the airspace above the fuel in the gastank, then runs an airpump to build a slight pressure in this airspace. A timer is then used to make certain the the pressure "holds". This test will flag a failure if any hoses are leaking or the gascap is not sealing properly.
 
#1 thing you need to do CHECK YOUR GASCAP!
#50 of 378
Re: 2002 Dakota SLT "Racing" idle problem [bpeebles] by jneal
Nov 08, 2006 (9:04 pm)
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Replying to: bpeebles (Nov 07, 2006 6:48 pm)

"I guess there are several folks that think they are mechanics 8-) ..."
 
I have "been thinking" I was a mechanic for over forty years now since I went thru my first schooling in the military but guess I have been wrong all this time.
 
I advise people to go by Autozone as most people find it easier and more convenient to have them read and told what they mean than trying to find out for themselves what the different codes mean.

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