Vacuum!

[tlcasey100]

i need a complete vacuum line diagram for my 1990 ranger XLT. the old plastic lines have become brittle and are missing in some cases.It also has fuel injection is that helps and is a Oklahoma truck.

thanks

 

[adsm08]

They were all fuel injected that year.

California was the only state that got it's own special setup because Communism.

If the next word starts with a vowel you us "an", not "a", so it would be "an Oklahoma truck".

Is it manual or automatic?

It's a pretty simple system that year. All lines start at the intake. One goes to the MAP sensor, one to the fuel pressure regulator, one to the vacuum tank/HVAC system, and one to the transmission vacuum modulator if you have one.