HVAC hose diagram needed

96DODGERAM

MEMBER
1996 DODGE RAM
3.9L
V6
2WD
AUTOMATIC
168,000 MILES

I have the truck listed above that the heater and A/C hose is cut under the hood on the passenger side. I am wanting to hook it back up but can't find the right video or pictures to help me out. I need help figuring out where it needs to connect at.

3 Replies

JACOBANDNICKOLAS

MECHANIC
108,328 POSTS

Hi,

Are you referring to a vacuum hose? Can you upload a pic of what you are dealing with?

If this is the issue, the vacuum comes right off the intake manifold and into the vehicle via a vacuum hose. If it is something related to the actuators, I attached a pic below showing the vacuum schematics.

Let me know exactly what is happening.

Take care,
Joe

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Wednesday, December 30th, 2020 AT 10:58 PM

96DODGERAM

MEMBER
63 POSTS

When I try to turn on my heater or A/C it doesn't blow out at all, but my defrost works. I'll send a picture as soon as I get home today.

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Thursday, December 31st, 2020 AT 7:13 AM

JACOBANDNICKOLAS

MECHANIC
108,328 POSTS

Hi,

It sounds like a vacuum leak. The default is defrost. Do me a favor, send me the pic so I can see where and what is broken. Chances are it has the hard plastic vacuum hoses which break after time.

Take care and I'll watch for your reply.

Joe

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Thursday, December 31st, 2020 AT 10:24 AM