05 Dodge ram 1500 3.7L V6 MISFIRE PROBLEM
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05 Dodge ram 1500 3.7L V6 MISFIRE PROBLEM
On my 05 Ram, I am misfiring badly, I’ll drive to work and when I get off it will misfire on the way home and I have to stay at super low rpms. Replaced the crankshaft sensor, I’m having P0300 random misfire code. I have a small exhaust leak near downstream o2 sensor, what should i do or replace? I replaced all 6 plugs. Not sure if I should hand over tons of money for all 6 coils. Please help!
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Joined: Aug 2017
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Does the missing not happen on your way to work? What conditions are changing to cause it to miss? When you say you keep the rpms low is that helping? How did the old plugs look? Any other symptoms or fluids not at correct level?
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the fluids are good, at low rpms it does fine, if I press the gas pedal down pretty good it stumbles and puffs
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Joined: Aug 2017
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I would recommend checking fuel pressure with the motor reved up. Fuel pump might not be strong enough to keep up with fuel demands. Other then a fuel problem it could be a restricted exhaust like a plugged cat. It could also be a broken or weak valve spring but its a random misfire so i would check fuel and air first