I believe you are talking about the heater core. Your best bet is to go to your local library and get a manual for it. Some trucks you have to remove the dashboard to get it out. their is something in my heate fan and it make a noise when fan is on
Autozone web page has the Vacuum diagram for the1989 Dodge Dakota.
The heater core on a Dodge Dakota is inside the HVAC housing, under the dash.
Drain the water from the cooling system. Remove the water hose from the heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
belt diagram 1992 dodge Dakota with 318
try here http://www.ebooksquad.com/search/97+dodge+dakota+wiring+diagram
You can get a 1990 Dodge Dakota fuse diagram in the owner's manual. You can also find it at select auto part stores.
You will have to disconnect the liquid line and the accumulator from the evaporator tubes in order to remove the heater core.....
It is important to have a diagram of the area of the car that is being worked upon. The cooling system diagram for a 1998 Dodge Dakota is found in its maintenance manual.
2006 Dodge Dakota - Where do i find the trailer wiring harness
No
Diagram for location of blower motor resistor can be found herehttp://autorepair.about.com/library/images/bl441a-lib.htm
The 1994 Dodge Dakota fuse box diagram is in the Dakota service manual. The manual might be available at the library, or can be bought through an auto parts.