Go to the Airtex website, they have a technical bulletin on it. Had the same problem with fuel pump in tank alignment on my 1995 Dodge Dakota. Fuel gauge hangs up and doesn't work. Jacked the box up enough to loosen the tank retaining ring with a screw driver and hammer, reached in and turned the pump to the correct position. It has to be in the exactly correct position for the gauge to work.
Autozone web page has the Vacuum diagram for the1989 Dodge Dakota.
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2006 Dodge Dakota - Where do i find the trailer wiring harness
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 can find a vacuum line diagram for a 1989 Dodge Dakota by checking the owner's manual. You can also find them at different auto part retail stores.
When making changes to anything electrical a person needs to have a diagram. The wiring diagram for the power windows on a 1988 Dodge Dakota can be found in its manual.
The Dodge Dakota transmission blueprint is also known as a transmission diagram. The transmission diagrams can be found at most Dodge dealerships.
When fixing or changing a radio in a car, a wiring diagram will help make sure things are connected correctly. A wiring diagram for the radio of a 1990 Dodge Dakota can be found in its maintenance manual.
It is in an owners manual available from MOTORLIT.COM.
in a reference manual at your local library
You can try techauthority.com for the owners manual and fuse box diagram.
The transmission in a car is a finicky part, so it is best to have a diagram while working on it. A person can find at transmission diagram for this car in its maintenance manual.