1994 Chevy Suburban charging, shorting

253,000 MILES • V8 • 4WD • AUTOMATIC
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GRHMAIL
  • MEMBER
  • 1 POST
I've noticed lower vlotage on my guage. last night with lights and fan on it went very low and performance was affected. Batt tests good. Alt put out 65 amps, changed it. Voltage is higher now but drops when anything is turned on, especially headlights. Recently had coolant leak. Perhaps wires wet on cross member could be shorting?
Mar 21, 2009 at 10:28 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
It sounds like the alt is bad. Take the car to a parts store and have them check the alt output while it is on the vehicle.

Let me know what you find.

Joe
Apr 5, 2009 at 11:54 AM
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