2004 Ford Ranger Flashing batter indicator on highr rpm shi

2004 FORD RANGER
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SOCAL66GT
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Transmission problem
2004 Ford Ranger 6 cyl Four Wheel Drive Automatic 71k miles

2004 Ranger 4x4 edge, No codes or CEL.
I have this issue that happens at high rpm shift or passing gear. When the Auto trans shifts at high rpm the batter indicator Flickers and I notice a shutter of shifting like the trans is not sure it should shift or not. The not shifting I understand as being a possible bad valve body O-ring, but the flickering battery indicator has me boggled.
One thought was the Alt is starting to go, low volt under high demand?
Any ideas?
Oct 15, 2010 at 2:35 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Bring the alternator in and have it load tested
Oct 15, 2010 at 2:43 PM
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