2.5L ('98-'01) can you help me what is this hose?

[noisyboyy]

this hose is hanging over my ac unit . it looks like a vacuum hose . don’t know where it goes anyone know ? thank you in advance

 

[RonD]

Is part of it a Grey hard plastic hose?

If so it goes to the Heater hose By-pass valve, has 4 heater hoses connected to it, yes a vacuum hose
End often broke off so rubber hose was used as a "patch"

Other end runs thru firewall and goes into the cab under the glove box next to passenger side kick panel
It changes to a White hose in the cab
There will be a black hose running next to it, this is a main vacuum hose from vacuum reservoir in the engine bay, it runs the cab vents, defrost, panel, floor

The white/grey hose only has vacuum in OFF and MAX AC settings, so not "a vacuum leak" as far as engine or cab vent system is concerned

 

[DILLARD000]

Looks like HeaterByPassValve+Actuator where this VacHose connects is near bottom of your 2nd pic above.

 

[noisyboyy]

awesome thank you both . I will look again but i didn’t see any place to connect it . there were no nipples or places to connect hose . I will look tonight when i get home . thank you both for the quick response

 

[RonD]

Can look like this: https://i.ebayimg.com/images/g/klIAAOSw6F9ifPqP/s-l500.jpg

Hard to see the port/nipple at the end of the black "can" on this 4 hose version

Or like this: https://www.ranger-forums.com/attachments/general-ford-ranger-discussion-15/91040d1501273488-heating-problem-img_5261.jpg
This is the 2 hose version

 

[noisyboyy]

great thank you so much . really appreciate all the help guys

 

[noisyboyy]

RonD , Dillard000,
thank you both so much . I found the where the connection for the hose went . the valve nipple was hidden by a hose so couldn’t see the nipple . the info and pictures got me right to the fix . thank you both for the info and pictures . I really apprecaite it .
Ty