Just curious if anyone else has noticed that it is very hard to manually idle your truck at 1000-1200 rpms. I had started it the other night when it was about 15 degrees and I let it idle normally for about 30 seconds to get oil pressure up and then I tried to Idle it up manually with my foot to about 1100 rpms. It is darn near impossible. I ease into the peddle and at first it doesn't even move, then it starts to climb slowly to about 950 then instead of continuing up slowly, it takes a big jump all the way to about 1300. So I try to ease off hoping I can hold it at 1100 on the way down and it eases down slowly to about 1200, then falls all the way back to 900 without hardly even moving the peddle. Do I have a bad Throttle position sensor?
TIA
TIA