89 F150 idle at 2000rpm!
I recently bought this 89 F150 with the in-line 6 with 79,000 miles. At first, it seemed to hunt for an idle, around 600-800 rpm. Then on day, is started searching between 600-2000 rpm. Now, it's at a constant 2000rpm. This is all within the first 200 miles I've put on it.
Other than that, it seems like a clean truck. What gives???