Hey everyone
Ive been having a problem with my car for months and can't find the problem at all the problem i'm having is when the car warms up it will have a rough idle when in park drive neutral but not in reverse also if i turn the car off and back on it will go away for about 30 seconds when driving it will come and go when it feels like it there are no codes no engine light i checked the battery alternator coils spark plugs vacuum leaks fuel pump and filter changed oil and air filter cleaned throttle body and maf im lost any help would be great thanks.

 

It almost sounds like a motor mount problem. It may be relieving the weight off of the bad mount when in reverse. It is like a dead miss, or more like a constant vibration.

 

It is also loosing power when i turn the wheel while i'm not driving it will rumble like it wants to stall and lights will go dim same if im doing up the power windows if im in park and rev it to 2000 rpm and let go the gas once the rpms drop back down it will rumble like it wants to stall thanks for replying.

 

My 2007 manual R/T FWD did that when I first got it. It does not do it now, but I'm not sure what fixed it. It was one of these things that I did:

Replaced
air filter
battery
MAP sensor
O2 sensors
VVT actuators
water temp sensor
air temp sensor
cam position sensors (the intake side cam sensor was hard)
crank position sensor (this one was hard too)
PCV valve
Spark plugs
All 4 coils

Cleaned
Throttle body - removed from car and spent a good 20 minutes on it with rags, throttle body cleaner and compressed air.

Checked and tightened
All vacuum hoses and electrical connections.

All of the electrical connections for the sensors above got a good dose of contact cleaner.

Calibrated
Throttle position sensor - after putting the clean throttle body back on the car, and replacing all of the above parts, I used an Autel MX808 calibrate the throttle position sensor.

After all that, it idles and runs very smooth.

 

I'm pretty sure u have to either replace your throttle body or give it a good cleaning. That's real close to wat mine was doing