no spark

Asked by Jan 21, 2016 at 05:56 PM about the 1986 Ford Bronco XLT 4WD

Question type: Maintenance & Repair

Could bad alternator cause no spark by
chance

6 Answers

76,925

No. Does the engine turn over?

100,545

Did you replace the distributor pick up coil yet?

Not yet just thought I would ask about e alternator

Got the pickup coil got it running now it acts like it wants to die and Boggs down could that be the alternator

100,545

Now disconnect a battery cable, wait at least 30 seconds to a minute, reconnect the cable, set the park brake and block the wheels, step on and hold the brake pedal start the engine and put into gear, turn on all electricals, headlights, fan etc. Wait until the idle stabilizes, then turn everything off and shut it down, if the idle did not want to stabilize, clean the throttle body and then remove the ISC unit, clean it and the ports and reinstall, then start it up and see if it idles as it should. Then hook up a voltmeter to the battery and start engine, the voltmeter should read between 13.8 to 14.2 volts, if it does then it is charging as it should. HTH

100,545

You did set the timing to specs right? Sometimes people forget to unhook the spout connector before setting the timing and then put it back in.

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