my matrix 2azfe once warmed up will idle low when the rad fan turns on.
so low that the engine starts to shake which shakes the shifter as well. it never stalls but the shifter starts to shake like crazy which is quite irritating.
this only happens after the cars warmed up enough that the cooling fan needs to come on to stop the car from overheating in traffic. it also happens randomly after the car is started after being warmed up first.
this makes me have to give the car gas so the car doesn’t idle to low. this happens only in N. no CEL or any codes.
what could be wrong?