kendiesel

when ever i rev the engine or drive it the rpms stay when i shift then slowly come down. Is that some kind of senser that went bad or what?

monkeydude3

sounds normal, it's the IAC just trying to prevent a backfire. has it recently started doing this?

kendiesel

yes

monkeydude3

try cleaning the IAC. I'm not sure what would cause it to hang other than the iac sticking a bit or needing cleaning

kendiesel

thanks

monkeydude3

yup because the carbon may be causing it to bind. It works when it has to raise up, but when the voltage lowers from it relying on the spring to bring it back down, it may be sticking a bit. not uncommon

George