Originally Posted by Alucard
the idle problem is when i come to a stop or drop it into park the idle drops almost to the point of stalling then jumps back up to idle and kind of bounces around for a minute but does eventually stabilize.
I would like to begin by saying I am NOT a great mechanic myself. When it comes to diagnosis, I'm usually not so hot. HOWEVER, I drove a beater of a Toyota on my vacation this year, and it would idle that way. Almost die, rev up to idle, almost die, rev up to idle. Turns out it had a couple of vacuum leaks and a faulty heat sensor. The sensor was getting a reading from the engine compartment heat mixing with the airbox temperature air... and the sensor was fXed.
It sounds to me like this engine is doing the same thing. But the difference is, this is a modern Ranger and the 'Yota was from the mid 80s
Anyway, good luck my friend.