Hard Sputter
#1
Hard Sputter
I can drive my truck 40 plus miles up on top a mountain and it drives fine. When I come home on the same roads about half way home I get these hard sputters. Real hard. It is like something choked it out. I only get a few of these and then it quits. The rest of the way home it is fine. I really think it is when I have a light throttle cruising and never when I am giving it throttle to accelerate. Any ideas? I was thinking IAC or Throttle control valve. The truck does have one of those stupid K&N filters on it. I made sure the connections are all tight and cleaned it a few times to make sure nothing was getting in.
Any ideas are greatly Appreciated.
1997 Dodge Dakota 5.2 Auto.
Any ideas are greatly Appreciated.
1997 Dodge Dakota 5.2 Auto.
Last edited by Lefty2053; 01-19-2019 at 08:18 AM.
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Well I guess I should have said sometimes it does and sometimes it doesn't. Because it will do it also if I go to town 18 Miles and on the way back it will do it. AS for the Mountain it is 10,500 feet and where it sputters it is usually around 4800 feet. But when I go into town it is mostly around 4400-4800 feet.
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#8
Red lead from the meter goes to the 'signal' wire that goes back to the PCM, (I think it's the center wire, assuming a three pin connector) black lead just goes to a good ground. You will have to poke the red lead into the wire enough to get good contact though..... so, have some electrical tape handy to seal it back up as well.
With the leads in the correct spots, have a friend turn the ignition "on", (don't start the motor) and SLOWLY press the gas pedal down, all the way to the floor. Meter should be set on the lowest voltage range it has. (5 or 10 volts will be fine) Meter should start out at less than one volt with the throttle close, and SMOOTHLY increase to greater than 3.5 volts at wide open throttle. If it bounces around, AT ALL, it's bad, and needs to be replace. Run the test several times, engine warm, if possible..... See what ya get.
With the leads in the correct spots, have a friend turn the ignition "on", (don't start the motor) and SLOWLY press the gas pedal down, all the way to the floor. Meter should be set on the lowest voltage range it has. (5 or 10 volts will be fine) Meter should start out at less than one volt with the throttle close, and SMOOTHLY increase to greater than 3.5 volts at wide open throttle. If it bounces around, AT ALL, it's bad, and needs to be replace. Run the test several times, engine warm, if possible..... See what ya get.
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