73 dart not cranking
Common cluster problems:
Ground as noted. Add a separate pigtail, and bolt to the column support, etc
Bad connections at the connector to the PC board. Pins work loose or break. Repair them. Mine were so bad, I went to a pair of "Molex" style connectors
Bad connections at the instrument regulator. On mine, the spring contact fingers were not making connection to the PC board traces, I had to solder jumpers across
On mine, the IVR itself was bad
On mine at least two of the gauge stud nuts were loose / corroded. Replace the "fake" nuts with real ones and loosen / tighten several times to "scrub" the board trace clean.
Repair, clean, replace, the bulb sockets as necessary
Below is where I had to solder jumpers on the IVR socket
The black is an added grounding pigtail, the blue / white is ignition switched 12V supplying the cluster
Common cluster problems:
Ground as noted. Add a separate pigtail, and bolt to the column support, etc
Bad connections at the connector to the PC board. Pins work loose or break. Repair them. Mine were so bad, I went to a pair of "Molex" style connectors
Bad connections at the instrument regulator. On mine, the spring contact fingers were not making connection to the PC board traces, I had to solder jumpers across
On mine, the IVR itself was bad
On mine at least two of the gauge stud nuts were loose / corroded. Replace the "fake" nuts with real ones and loosen / tighten several times to "scrub" the board trace clean.
Repair, clean, replace, the bulb sockets as necessary
Below is where I had to solder jumpers on the IVR socket
The black is an added grounding pigtail, the blue / white is ignition switched 12V supplying the cluster
