voyteck
Junior Member
- Joined
- Oct 18, 2013
- Posts
- 5
- Reaction score
- 0
- Ram Year
- 2012
- Engine
- Powertech 3.7
Gentleman here we are again posting on a failure.
Have a Ram 2012 V6 3.7lt about a month ago i start the replacement of electrical parts because of a little vibration and a code P0303 on dash. So i replace the 3 coils, then the spark plugs and the truck was back again working great. The code went off. In this event the vibration was only at low rpms but the engine was able to stay on.
Well, last week my father took the truck as a normal for a close trip to downtown and while he was on a red light the truck started to vibrate a lot, the CEL was blinking on the dash and the engine could barely stay on. He return home with this condition and after he parked and shut off the truck, the nightmare began. I go to check and the truck did not want to turn on, and when it get it, the engine was shaking a lot, CEL flashing and dies if you dont accelerate. But even if you accelerate the truck sometimes would not stay on. The engine is hard to start, and when you get it going the engine wont stay on, it shakes a lot, the rpm act random. If you press the pedal to help the engine to stay on, the rpm will stay high for a moment and suddenly it appears to correct or i guess "protect" the engine at drop the rpms.
Well, at this moment i have replaced spark plugs, sparkplug wires, all coils new, new MAP sensor, check the gas pump pressure. Clean the air temp sensor on the air box, clean plugs of all the components listed. The error code still the same P0305. I have changed the position of the coils, put back and old one, took out all the spark plugs and they were black, like the engine is not making a good combustion. Also you can tell this because it smells like raw gasoline.
Any one has a clue where to check next. It has been scanned but the 2 mechanics only get the P0305 code, everything else seems fine. I also take the valve cover off to check if the cyl 5 is not with a problem on the valves or the common drop of the rocker arms but NO, everything was OK.
Have a Ram 2012 V6 3.7lt about a month ago i start the replacement of electrical parts because of a little vibration and a code P0303 on dash. So i replace the 3 coils, then the spark plugs and the truck was back again working great. The code went off. In this event the vibration was only at low rpms but the engine was able to stay on.
Well, last week my father took the truck as a normal for a close trip to downtown and while he was on a red light the truck started to vibrate a lot, the CEL was blinking on the dash and the engine could barely stay on. He return home with this condition and after he parked and shut off the truck, the nightmare began. I go to check and the truck did not want to turn on, and when it get it, the engine was shaking a lot, CEL flashing and dies if you dont accelerate. But even if you accelerate the truck sometimes would not stay on. The engine is hard to start, and when you get it going the engine wont stay on, it shakes a lot, the rpm act random. If you press the pedal to help the engine to stay on, the rpm will stay high for a moment and suddenly it appears to correct or i guess "protect" the engine at drop the rpms.
Well, at this moment i have replaced spark plugs, sparkplug wires, all coils new, new MAP sensor, check the gas pump pressure. Clean the air temp sensor on the air box, clean plugs of all the components listed. The error code still the same P0305. I have changed the position of the coils, put back and old one, took out all the spark plugs and they were black, like the engine is not making a good combustion. Also you can tell this because it smells like raw gasoline.
Any one has a clue where to check next. It has been scanned but the 2 mechanics only get the P0305 code, everything else seems fine. I also take the valve cover off to check if the cyl 5 is not with a problem on the valves or the common drop of the rocker arms but NO, everything was OK.
