         
1998 GMC/Chevy Truck Slow cranking speed or extended cranking time. There is the possibility that the ECM may have to be reflashed as per 6 MTSB number 87-65-21 to correct this problem. Toyota Four Runner or pick up. Part number 14273. If the charge and brake warning lights stay on all the time and yet the charging voltage is correct at 146 volts, you may have to check and change the charge light relay. 
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