My 1995 Silverado, 350, AT, runs really bad until I unplug the Alternator ?
No power, Falls flat when I accelerate, Frequently dies, Idles rough. I replaced the fuel pump, fuel filters, rebuilt the TB, replaced both injectors, Fuel Pressure is good. Replaced MAP Sensor, Temp Sensor, Throttle Position Sensor. Replaced Coil, Alternator, Distributor, Battery, Computer, Instrument Panel Circuit Board. No Check Engine Light, No Codes. 14 volts on the dash-gauge and on the Battery. I discovered that when I unplug the Alternator: It corrects and runs great except my dash-gauge drops to less than 12 and falls as it runs (running on the battery) I'm out of ideas.
I forgot to mention: replaced Intake Manifold Gasket, checked for vacuum leaks. Replaced Plugs, Plug Wires, Ignition Module, Cap, and Rotor. I will appreciate any help. Thank You.
Search Chevrolet C/K 1500 Questions
Chevrolet C/K 1500 Experts