1971 Dodge Truck Ballast Resistor Wiring

A ignition ballast resistor b above windshield wiper motor pic57 1 dark blue wire with white stripe a ignition ballast resistor b above windshield wiper motor pic58 1 solid grey wire a oil gauge wire b oil pressure switch on back of engine pic59 1 solid dark green wire dark blue with white stripe a alternator regulator.

1971 dodge truck ballast resistor wiring. It has the csc ignition and a version with the old ballast resistor setup with the full 12v wire coming from start relay to the output side of relay. I would like a 5 pin dodge chrysler ignition ecu box from a 1975 pickup truck example dodge w 100 with 318 v8 and the 4 pin ballast resistor that goes with it. The ballast resistor is a high failure item. Corroded wiring connectors and solder joints will reduce voltage to the ignition circuitry resulting in hard starting and phantom problems.

Fifth topic emisson control nox wiring 1970 1971 while under the hood working on the engine compartment wiring found an additional wire connector apparatus on the ballast resistor which had a single red wire coming into it from a small additional harness. I would like a 4 pin dodge chrysler ignition ecu box from a 1983 pickup truck example dodge d 150 with 318 v8 and the 2 pin ballast resistor that goes with it. The ballast resistor is commonly found in older vehicles because they did not have the benefit of circuit boards found in most of today s vehicles. Vintage dodge truck forums.

Some brands utilized a resistor in the coil or a resistor wire hidden in the wiring from the ignition switch but mopar put their resistor or ballast resistor on the firewall or inner fender. Kits are available for the following applications. 1972 1987 dodge ram trucks d w series 87 w150 w 360 ballast resistor issue. Fortunately mopar performance has made it easy to buy most of what you need in a complete kit.

Dodge truck suv and van forums. This video explains how the ballast resistor works. 273 318 340 360 small block v8. Connect the wire to the unused terminal of the ballast resistor and to the previously identified terminal of the coil.

Manual does not show this set up where there are. Cut a piece of wire long enough to reach from the other terminal of the ballast resistor to the bat or b terminal of the coil. Strip 1 2 inch of insulation from each end of this wire and crimp a connector onto each end. Most people carry a spare ballst resistor with them.