Question about Dodge Dakota

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Rough idle very poor accelleration will not get up to highway speeds

I just baught a 1994 dodge dakota for some reason it will not accelerate above 60 on the highway and has a really rough idle sometimes it almost seems to run better before it has warmed up i baught some new plugs wires and distributor cap didnt make a difference so i did some research and decided i shoulkd try the egr valve and the throttle position sensor i did get them used from pick n pull scrap yard yesterday when we were working on it i did notice some black smoke from the exaust what do i do next?? or what could this be??

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  • m_federle
    m_federle Feb 11, 2014

    the check engine light was on so my brother figured out how to read the code by using the ignition it said the egr valve so we went to the local scrap yard and grabbed 2 of them just in case after replacing that the engine light went off and its still strugglin i did read a post about a metal ring under the distributor cap thats held on by 2 plastic clips and after a while they become worn and if that ring moves is can send wrong signals to your computer so im going to my truck tonight to see if that might be the problem and maybe check the air lines over that was with the filter off i notice that black smoke while he was revving

  • m_federle
    m_federle Feb 12, 2014

    so i checked the pulse ring in the distributor it was nice and tight so now im lost im thinking fuel pump i found a used one 150 or new 274 id like to get used any possibillities this will help?? and any recommendations on buying used ore new keep in mind i baught this truck for 400

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  • Dodge Master
  • 21,873 Answers

Well black smoke is a rich fuel mixture. So it may be getting too much fuel or not enough air.
Is the check engine light on ?

Posted on Feb 11, 2014

Testimonial: "m_federlethe check engine light was on so my brother figured out how to read the code by using the ignition it said the egr valve so we went to the local scrap yard and grabbed 2 of them just in case after replacing that the engine light went off and its still strugglin i did read a post about a metal ring under the distributor cap thats held on by 2 plastic clips and after a while they become worn and if that ring moves is can send wrong signals to your computer so im going to my truck tonight to see if that might be the problem and maybe check the air lines over that was with the filter off i notice that black smoke while he was revving"

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 4 Answers

SOURCE: Rough idle until warm

HMM, ya ont get a code unless ya figure out how to read the morse code values the OB1's use. Hmm sputters, and rough idle can be from poor air circulation, as well fuel delivery.

first air.......inspect and clean your vacuum hoses, cracks and leaks will most notably ruin your day. as well as the performance of your ride. check the seal for your intake hose around the throttle body, then clean the ports in and around your throttle body as well. Bad air supply, poor idle.. follow me..


second is fuel delivery. Your getting your gas, thats evident, but are you getting the required amount. hard to guage unless you disconnect a line and test its pressure. so lets USE the KISS method.. KEEPING IT SIMPLE STUPID

first, check and or replace your fuel pressure regulator...

second, inspect condition of your fuel filter.

thrid, and certianly the last thing, your fuel pump. go in that order. or your gonna seriously annoy yourself when a 5 dollar fix turns into a 3-400 dollar fix.


Posted on Nov 19, 2008

  • 10974 Answers

SOURCE: Shakes while idling and sometimes stalls.

check for minor vacuum leak and map sensor,pcv,egr valve

Posted on Oct 13, 2009

heimlich
  • 1978 Answers

SOURCE: 3.8 engine runs perfect then acts like its has 2

Clean and check the ground wires in the engine compartment. Replace them if they are bad. Make sure the alternator, engine, transmission, and distributor grounds all have good contact.

Posted on Nov 08, 2010

emissionwiz
  • 74945 Answers

SOURCE: pops back through the intake when it is cold runs

This problem can be caused by defective spark plug wires that are cross firing due to voltage leaking to a nearby plug wire as well as a flat camshaft lobe.

Posted on Jan 16, 2011

rfoulds85
  • 128 Answers

SOURCE: 1994 CHEV 4.3L VORTEC 1500

Going on the information you have provided it sounds to me like the fuel pressure regulator.It is located unthe intake manifold and is a lenghty job to do and is exspensive to have done.If you have a good mechanical ability it can be done by yourself in about 4-5 hours.and cost about $100 bucks.

Posted on May 04, 2011

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