Have a 2000 ford ranger trailhead p/up w/3.0 and 78000 miles. First started by bucking on/off while driving and then straighten out and drive smooth. Then it would be going down rd. And shut off, at this time I would switch ignition key back to off and then forward to on and it would run smooth as silk. This occured periodically until it died last time and wouldnt start back and bat. Was dead. Has new bat., Alt, (not rebuilt), and terminals. With engine jumped and running on alt. (Bat. Dead when jumped of course so has to be running smooth by alt. After jump) pull cable off either side of bat. Motor dies. This list is whats happened since this started. Horn out, when use rt. Turn sig. Speedo. Needle erratic. Doesnt do on left sig. Temp guage only one working. And sometimes, not every time, you jump it then rev motor w/pedal as smooth as silk and other times push acc. Pedal down and (nothing) but it will return to smooth idle everytime whether revs or not. Have 12.5 volts on bat. Not running.15 to 16 volts going thru bat. From alt. When running(however bat being jumped alt. Putting out more). Same volts out of charge line on alt. All volt meter cks. On and off ck. Out to specs on voltmeter. Im beginning to think ign. Switch since every grnd. I could find anywhere in ign. System ckd. Out. Where next?
Wednesday, March 13th, 2019 AT 6:03 PM