just bought a 4.0

[jakez]

ok so i just bought a 94 ranger with the 4.0 and i was wondering whats some good things to check/ clean/ replace? i know my tensioner puley is shot and the radiator leaks. also byt the intake manifol it look like 3 vac lines and plugged and it also has headers. any pointers or tips? thanks!

 

[swynx]

ive seen alot of 4.0's go past 250k without much maintenance besides oil changes. i would check the fuel pressure regulator, and i only say this because when i swapped mine out it was full of black gunk, and it made a world of difference.

ive never had a 4.0 that asked for much, but ive always bought atleast 1 new sensor every payday or tried to every month till i had all of them replaced. even tho it seems to run fine, it couldnt hurt.