1999 GMC Sierra 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1999 GMC Sierra 1500
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1999 GMC Sierra 1500 ProblemsFuel Level Sensor Failure
It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.
The daytime running lights are prone to burning out. Our technicians tell us that the light sockets may show signs of heat damage but usually are OK. Always be sure to use the correct replacement bulb for the best life expectancy. The new bulb recommendation for 1999-2003 models is #4114K (trade number).
One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.
1999 GMC Sierra 1500 QuestionsMy truck will crank over but not start.And my (service engine soon) is on. (1 answer)
Stalls out immediatley dies.Wont stay running!No trouble codes!