*89 formula T-5 TPI New Alternator putting out 14 volts when ever i engage the blower for heat or cold above the lowest setting the engines stumbles runs erratic Relay is good, resistor is good, no wires are burnt took fan out seems to work fine when engine is not running? but when the engine is running if i engage the fan it starts flucuating the rpms go up and down like its possesed! no vacucum leaks that i can find! I can not run the compressor for the a/c cause it runs like crap its supposed to be over 100 degrees tomorrow! Thanks Buff