2000 Sport 4.0 5 Speed
Idle bounces around 5-700. Spark plugs changed recently, no change. I took off the throttle body and cleaned it all last night, as well as the IAC and housing. No change. Vacuum lines seem fine.
It threw a warning light last month reading high voltage on the downstream O2, but then went away a few days later.
Anyone have a recommendation before I inevitably start throwing parts at it?
Idle bounces around 5-700. Spark plugs changed recently, no change. I took off the throttle body and cleaned it all last night, as well as the IAC and housing. No change. Vacuum lines seem fine.
It threw a warning light last month reading high voltage on the downstream O2, but then went away a few days later.
Anyone have a recommendation before I inevitably start throwing parts at it?