Just bought a 2003 f150 4.2 v6 auto single cab 8 foot bed with 115k.
The trans fluid seems brownish red, but doesnt really have any kind of obvious burnt smell. Truck has a tow package so Im assuming it towed stuff.
I dont know if it was ever changed.
Should i have it flushed or no? I know theres tons of varying opinions. Runs well and shifts smooth.
My other concern, looking at the coolant in the reservoir today I saw a small bit of rainbow sheen on the surface. Im guessing oil contamination. Again it runs and drives well, should I be concerned? Obviously i’ll drain and add new coolant.
Thanks for any input.
As far as I know, the 97-98 4.2 v6’s were problematic with timing chain cover gaskets and intake gaskets but they apparently fixed that by 99 so Im hoping a 2003 is safe.
Anybody have good experiences with the engine? Thanks again