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What should the voltage be on the positive side of the ignition coil for a 1977 power wagon with a 318 engine?
Wiki User
∙ 13y ago
within one volt above or under battery voltage
Wiki User
∙ 13y ago
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Do headlamps in your 2000 blazer get dim after 6 years?
The head lamps should not get dim. Dim light are an indication of low voltage. You should have a volt meter in the instrument panel. If the voltages is not reading about 14V when the engine is running, you have a bad battery or alternator. It should read over 12V with the engine not running and the ignition in the on position. It should not drop below about 9-10 when cranking the engine. If you have low voltage during cranking and normal voltage at other times, you probably need to replace the battery.
Should you have voltage going to your coil when the ignition is in the on position. If you dont what is the probable cause.?
In my experience you must have voltage to the coil...it must be energized to sustain the engine current to work properly. this requires to have current from the ignition to the engine system. If there is no signs of current-voltage with the ignition ON - more likely it is interrupted at the switch. You may trace continuity on wires from the coil to the switch. check the fuse block to insure that no fuses are bad. You may fing a book on the used books store and locate the diagrams...you may search the net...they are there....keep an eye in the color code to ID the wires -they go from the engine compartment to the inside of the unit...I am assuming the that engine is not running. I am in Texas.
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