Where is the ballast resistor located

The ballast resistor in your 1997 Dodge B3500 van is situated under the exhaust manifold, where the engine and transmission connect. ballast resistor ' DodgeTalk Forum

Older cars had a ballast resistor to limit the voltage to the ignition coil in order to prolong the life of the coil. The way it was set up, when the starter was engaged, the ballast resistor was bypassed, providing full voltage to the coil for a 'hot' spark. Once the engine was running, current to the coil was routed through the ballast resistor. I think this was usually accomplished in the ignition switch - full power in 'Start' position, through the ballast resistor in the 'Run' position.

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Ignition ballast resistor is usually mounted on the firewall near the back of the engine. It's white, rectangular, and has a wire connector on each end. It's function is to limit primary coil current during engine running. The ballast is bypassed during starting so you get a higher spark voltage. If you remove the ballast, you will burn out your coil.

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Seems to be some debate as to whether or not your car even has a ballast resistor, and if it does, where it may be located. I've always seen ballast resistors mounted on the firewall away from the engine's heat...but those were on older models (50's, 60's 70's). Good luck.

You must be living in the 1960's

Ballast resistors were for ignition with points,
to reduce the coil voltage to under 10 Volts

there should be a white ballast resistor in the circuit to cut the amperage back on the coil.
Check or replace ballast resistor sometimes they was mounted on firewall next to the ignition module either a 2 prong or 4 prong white ballast resistor.

The negative side of the coil goes to ground. The positive side goes to the ballast resistor. The other side of the ballast resistor connects to the ignition switch. More information might be had on manualsonline.com.

If theres no spark try replacing the rotor button and coil, not sure where the ballast resistor is located.

does not have one for ignition system