4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

Starter going out?

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Old Sep 5, 2015
  #1  
evadfa's Avatar
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From: Corvallis
Starter going out?

I have recently experienced hard starting. It will turn over and start, but it's a little more hesitant. Definitely noticeable. The Alternator and battery test good, actually great condition.
The starter is most likely the next culprit.
Anyone have any thoughts on this?
Thanks
 
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Old Sep 5, 2015
  #2  
RonD's Avatar
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From: Vancouver, BC
If you have a volt meter hook it up to battery, should read 12.3-12.8volts

Unplug the coil pack's 4 wire connector, you want a "no start"

Watch the meter's voltage while someone cranks the starter for 10 seconds, let starter cool off for 2 or 3 minutes if you want to repeat test.
If voltage drops below 9.50 volts then starter motor is most likely going bad.

Most likely because it could be corroded battery cables as well, either at the battery end or at the starter/engine ends, and they can corrode internally under the insulation.
If you get some electrical tape and a razor knife, you can cut back the insulation on a cable and peel it back and off, you are looking for a whitish discoloration which means replace cable, if not found tape exposed wire back up.
 
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Old Sep 19, 2015
  #3  
Ag's Avatar
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From: Raleigh
Originally Posted by RonD
it could be corroded battery cables as well, either at the battery end or at the starter/engine ends, and they can corrode internally under the insulation.
+1 on corroded cables. They can cause all sorts of weirdness. I had an intermittent flashing O/D light, intermittent flashing Air Bag light, the Bluetooth would intermittently be unavailable, the starter didn’t sound right and was laboring to turn the engine over, and finally I’d randomly lose all power in the truck without warning (dead from nose to tail). The only thing that would reset it was disconnecting the battery for a couple of minutes. The battery and clamps were less than a year old and the alternator and started both tested out OK.

It wasn’t until I cut into the cables behind the battery clamps that I found corrosion under the insulation. Once I cleaned that up, she’s been perfect.
 
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