Some Ram ProMaster 2500 owners report experiencing ignition issues where the engine fails to crank, despite all electrical systems appearing functional. These problems may stem from intermittent starting issues, commonly caused by a weak battery, corrosion on battery terminals, or poor electrical connections. Additionally, some owners have identified potential faults with the ignition switch, which may require verification and replacement if defective. Others have found that issues related to the ignition module can also prevent the engine from starting, necessitating the replacement of specific parts. In cases where vandalism is suspected, owners are advised to check for tampering with wires or fuses, as this can disrupt fuel delivery to the engine. Furthermore, excessive current draw during starting attempts may indicate poor electrical connections, particularly with the ignition switch or wiring. It is recommended that owners seek professional assistance to thoroughly inspect and diagnose these ignition problems.
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