12RAMSMAN
Junior Member
Hey everyone, hope this is the right section for this. Long story short, I'm getting a vibration coming from the engine at idle. I can feel it at stoplights, it's not all the time but seems worse after the engine has warmed up, sat and hot started. It still happens with cold starts, like this morning after driving a lot last night. Below I have the details on what I've tried so far and the story thus far.
2012, 1500, 4.7, 4x4, 147k miles. The issue seems to occur worse after the car has heated up and driven, then you park and start driving again. Always at idle, very smooth acceleration and driving otherwise.
The vibration is of varying intensity and frequency. It feels like it climbs then falls but not in a repeating pattern. Its very reminiscent of a misfire or something out a balance.
Every fluid in the truck has been changed, all new plugs (OEM plugs, done at dealership), plug wires and coil packs. Replaced the PCV valve and fuel pump. Did a fuel system clean at dealerships and through the gas tank. Pulled and cleaned the throttle body. Had the alternator and battery tested, all passed.
Dealership kept the truck for two days and couldn't figure it out, there are no CELs and dealer said sensors were showing the right numbers. I have a bluetooth OBDII reader and have been trying to monitor sensors via Torque for things that correspond to the vibrations, the only thing thats similar is the timing seems to advance slightly around the vibrations but timing sits in the 5deg to 15deg for idle which seemed normal.
If anyone has any insight into what this could be I'd love your input. I'm really discouraged at this point and holding off on doing more with the truck until I get this sorted out. If there's any additional info or things you want me to expand on just ask.
Thanks in advance
2012, 1500, 4.7, 4x4, 147k miles. The issue seems to occur worse after the car has heated up and driven, then you park and start driving again. Always at idle, very smooth acceleration and driving otherwise.
The vibration is of varying intensity and frequency. It feels like it climbs then falls but not in a repeating pattern. Its very reminiscent of a misfire or something out a balance.
Every fluid in the truck has been changed, all new plugs (OEM plugs, done at dealership), plug wires and coil packs. Replaced the PCV valve and fuel pump. Did a fuel system clean at dealerships and through the gas tank. Pulled and cleaned the throttle body. Had the alternator and battery tested, all passed.
Dealership kept the truck for two days and couldn't figure it out, there are no CELs and dealer said sensors were showing the right numbers. I have a bluetooth OBDII reader and have been trying to monitor sensors via Torque for things that correspond to the vibrations, the only thing thats similar is the timing seems to advance slightly around the vibrations but timing sits in the 5deg to 15deg for idle which seemed normal.
If anyone has any insight into what this could be I'd love your input. I'm really discouraged at this point and holding off on doing more with the truck until I get this sorted out. If there's any additional info or things you want me to expand on just ask.
Thanks in advance
