Nov 28, 2014, 3:14 PM
Post #1 of 1
91 chevy 2500 PU, (engine is 92 Caprice PI 350 65,000 miles on engine).... sometimes the "tach" goes crazy, engine mis-fires, and will NOT REV-UP,,,all lights and Inst. work fine, "NO ELECT. SHORT" and 'SOMETIMES' if I turn "OFF" the radio/fan motor, it will CLEAR and run fine? Sometimes when I don't have the heater/fan and radio on, if this happens, I "ENGAGE ELECT WINDOW SWITCH" and it may clear,,,if not feather the gas-peddle and it seems to "sometimes" clear problem? I have driven this truck over 200 miles NO PROBLEM,,,next time can't get "ONE MILE" down the road,,,?? I have changed the throttle-up sensor, checked wires for "CROSS~SHORT~BAD CONNECTION ect. but the little "gremlin" is still there???