Repairing vintage Chrysler - Plymouth - Dodge starters Chrysler - Mopar starter repair details and photos. 1. 1970-up starters (shown) are a tad more reliable - and definitely easier to service - than earlier models. The bolt-on, gasket-sealed solenoid assembly is one reason. 2. Earlier models required that the solenoid housing be caulked after assembly. 3. 6 volt starter relay - Technical - Antique Automobile Club Apr 16, 2011As for checking the switch / starter solenoid wire, it will probably be easier to remove the starter-switch from the dash, so that you have easier access to the wiring. Your Chrysler manual should have info on that. The Chrysler manual should also have a wiring diagram, so hopefully you can do a trace based on the wiring diagram / harness..