Check engine light on?

Tiny
MATTNBRITT
  • MEMBER
  • 2000 DODGE DAKOTA
  • V8
  • 2WD
  • AUTOMATIC
  • 127,000 MILES
We were driving on the freeway today and the engine light came on. We started it and checked under the hood and everything seemed to be running fine and we also checked the gas cap. The only warning we got was to check the washer fluid and I was just wondering what could be the problem?
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
Many things can set the check engine light. What you need to do is have the computer scanned to identify the trouble code. Most parts stores will do it for free.

Have that done and let me know what you find.

Joe
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
WILLBEE
  • MEMBER
  • 2000 DODGE DAKOTA
  • V6
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
We had a bad snow storm yesterday and I had a hard time driving in it I hit a huge hole in the road and also drove over a ditch, I think the snow was like a white out so I really don't know have my truck service every 3 months I have never had a problem until last night I was driving in this snow for almost 5 hours running errors the engine night came on my way home I don't know why, I am a single lady with limited income, no family in Ohio and really have no funds for a lot of people to look at it and charge me a fortune for something that isn't the right problem to repair. About a month ago I was coming home and the radiator light came on and it was totally empty of antifreeze I was lucky enough to be right near a tuffy and they refilled my radiator thingy for free. I don't know if that might have been a problem waiting to happen or what or if it is even related.
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
CARADIODOC
  • EXPERT
The Engine Computer detected a problem, set a diagnostic fault code, and turned the light on to tell you. The first thing to do is read that code. Many auto parts stores will do that for you for free, but you have to remember, they understand parts. They mostly never were mechanics. Fault codes never say to replace parts or that they're bad. They only indicate the circuit or system with the problem or the unacceptable operating condition.

Chrysler makes reading the engine codes yourself much easier than any other manufacturer. Cycle the ignition switch from "off" to "run" three times within five seconds without cranking the engine, leave it in "run", then watch the code numbers show up in the odometer display. Holler back with those numbers.
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
SCHLIEVEDAN
  • MEMBER
  • 2000 DODGE DAKOTA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 126,000 MILES
My check engine light is on. I did a self-check on my truck and I get trouble codes P0138, P0301 and P1682. Are these problems that a person who is not mechanically inclined would be able to fix? I would hate to take it into a shop and get charged $100's of dollars if I could just do it myself for the cost of parts.
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
BLACKOP555
  • EXPERT
P0138 - Left Bank Downstream or Downstream and Pre-Catalyst O2S Shorted to Voltage - Oxygen sensor input voltage maintained above the normal operating range

A P0301 code means that the the car's computer has detected that the #1 cylinder is missfiring it could be causing the P0138 code or the p0138 code could be causing this code, check your spark plugs wires, injectorand compression.

I belive P1682 is not a code for dodge manafacture.
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
BLACKOP555
  • EXPERT
P1682 Charging System Voltage Too Low

i looked at that one wrong sorry, check your alternator.
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
SCHLIEVEDAN
  • MEMBER
Thanks. I took it into the local Autozone and they did a free alternator check and said that all is good with that. They also mentioned that my belt sounds like it is slipping (squeaking and rattling) which could be caused by bearings in one of the pullies. Could that also be a possible cause for the trouble codes? So do you think the best place to start would be to change my plugs and wires, replace bad pully, and re-test for codes again? Also, do these codes automatically reset once the problem is fixed or is there something I have to do to reset?
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
BLACKOP555
  • EXPERT
If the belt is slipping it wont turn the alternator properly. Check all I told you first the alternator will not cause those problems.
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
HOLYJOE
  • MEMBER
I just had the same thing on my 2000 V-6. Turned out not to be the belt but the tensioner. $65 and an hour of work, everything is back to normal.

Tip for the DIY'er - Remove the entire air filter box from the wheel well and it goes much faster. You will also likely need to remove the coil from the bracket - the phillips head screws are usually hard to get out - you may have to use needle-nose vice grips to get them out. (I ground a hex head on the screws once they were out to make installation easier)
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
LEADTECH
  • MEMBER
  • 2000 DODGE DAKOTA
  • V8
  • 4WD
  • AUTOMATIC
  • 60,600 MILES
I have a 2000 Dodge Dakota 4.7 V8 4x4, at 60 plus mph with the truck in overdrive, it seems as though the truck is slipping in and out of OD and picking up several hundred rpm for about a second or 2 then it will run normal again.

It will do this more when i'm going up hills or staying at a constant speed, I have clicked off the OD and the problem still pursists.

I do have a check engine light for a left bank o2 sensor, and my muffler needs to be replaced (which I think is causing the check engine light)

thanks for your help.
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
CH112063
  • MEMBER
It's not just a coincidence that the rear o2 sensor and overdrive solenoid are on the same transmission subharness as the other sensors used as a vehicle speed reference by all the computers. While replacing your o2 sensor, be sure to check the grounds and wiring for all the other local information sensors. The vehicle speed sensor, the input and output sensors and the overdrive solenoid all are on the same body transmission sub-wiring harness.
If you need any help with identification or power, ground, or reference signal locations, just ask, or see the site's index or service manuals available by 2carpros. Com. I'm not going anywhere either. OK sir or Madam Just let me know if you need anything. I am a fan and technician for all the great Dakotas.
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
HEATON91
  • MEMBER
  • 2000 DODGE DAKOTA
  • 6 CYL
  • 2WD
  • MANUAL
  • 197,010 MILES
I have a 2000 Dodge Dakota 3.9L I have been watching the check engine light go on and off the past few months ive noticed recently that there has been a slight ticking noise coming from the engine maybe around #3 spark plug slot im just wondering if a piston is starting to go I change the oil every 3000 miles and keep good maintance on it because im starting to push over the 200000 mile mark on it. Also from time to time I have antifreeze come through the vents when the heater is on could this be a tell tell sign that my head gasket is blown there is no water in the oil and the heater coil is not leaking just wondering? Any suggestions would be greatly appreciated.
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
First, relax. If you have kept the oil changed and the engine hasn't been abused, a 3.9 is just getting broken in at 200K. What you need to do is this. When the check engine light is on, have the computer scanned at a parts store. Most do it for free. That will identify why the light is coming on. If the engine is running fine other than the light, chances are it is a sensor ir EVAP issue that doesn't even relate to the engine.

Now for the coolant coming through the heater, that is a different issue. You need a new heater core. Again, that has nothing to do with the engine. However, make sure to keep an eye on the coolant level. If it is leaking at the heater core, the level will go down and you don't want to overheat the engine.

A word of advice. I have owned Dakotas for the past 20 years. The lowest mileage one I sold had 225K on it and still ran great. I just wanted a newer one. And yes, they all had the 3.9L V6 engine. The only bad part about them are the earlier automatic transmissions had issues. If your trans is still solid, run it another 200K.

Joe
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
LOWELLWHITED
  • MEMBER
  • 2000 DODGE DAKOTA
  • V8
  • 2WD
  • AUTOMATIC
  • 225,000 MILES
2000 Dodge Dakota Club cab: volt meter goes off (it looks like it does with switch shut off) and the Check Engine light comes on. If I shut it off for a while when I start it all is well (like brand new)I took it to my mech he said there were no diagnostic problems showing up. He said he could change the instrument b ut was not sure that would solve the problem.
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Tuesday, July 14th, 2020 AT 12:03 PM (Merged)
Tiny
CARADIODOC
  • EXPERT
Don't replace the messenger. It's just telling you there's a problem. Start by measuring battery voltage with the engine running when the problem occurs. Normal is between 13.75 and 14.75 volts. If it is low, measure the voltage on the two small wires on the back of the alternator. They could be two plugged-in wires or two small nuts on the tabs coming out of a small black plastic block. There will only be voltage there while the engine is running. One will have full battery voltage on it. The starting point for any diagnosis is the second terminal, It must have less than battery voltage, but not 0 volts.

Caradiodoc
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Tuesday, July 14th, 2020 AT 12:04 PM (Merged)
Tiny
2CARPROS-ARCHIVES
  • MEMBER
  • 2000 DODGE DAKOTA
  • 107,000 MILES
RUNS GREAT, WENT TO START IT AND IT WOULD NOT FIRE, JUST CRANKED. TRIED IT ABOUT 6 TIMES AND STRTED, RUNS GREAT. IT DID IT AGAIN. CHECK ENGINE LIGHT WAS ON FOR ABOUT A DAY BOTH TIMES. ANY SUGGESTTIONS? CAN HEAR FUEL PUMP AND ONE TIME I PRESSED ON THE ACCELARATOR AND COULD SMELL GAS, SO MUST BE GETTING FUEL.
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Tuesday, July 14th, 2020 AT 12:04 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
If the check engine light was on, have the computer scanned to identify trouble codes. Also, if it happens again, see if it will start with starting fluid. If it does, there is a fuel delivery problem. If it still won't start, chances are you lost spark to the plugs.
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Tuesday, July 14th, 2020 AT 12:04 PM (Merged)
Tiny
SANWIL
  • MEMBER
  • 2000 DODGE DAKOTA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 119,000 MILES
Spus and salls, chck engine light not on, no codes found
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Tuesday, July 14th, 2020 AT 12:04 PM (Merged)
Tiny
2CEXPT
  • MEMBER
Possibilities: Inspect and test all the following listed below:
Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it.
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Tuesday, July 14th, 2020 AT 12:04 PM (Merged)

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