So this used engine off ebay with supposedly <120,000 miles is now giving me some troubles...
One of them is a bad bearing sound(light squeeling) on cold startup, until warm. I've taken off all the belts on startup and still get the same sound, leading me to think maybe engine bearing-but i'm no professional mechanic.
It died a couple times while driving and threw the code 9'er. Code 9'er is the Vehicle Speed Sensor-What is the vehicle speed sensor? My van is manual so I thought those were for automatics? (this used engine came from an auto though). The manual does not say what to check for if there's a problem with the vehicle speed sensor.

I also feel I have a bad headgasket: During the warm month we just had I had some coolant overflow from the overflow tank when on an hour drive. going to do a leak-down test soonish.


mostly concerned about the code 9'er though,
thanks, aaron.