1994 GMC Suburban 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1994 GMC Suburban 1500
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1994 GMC Suburban 1500 ProblemsValve Cover Gaskets May Leak Oil
A burning smell may develop due to an oil leak form one or both valve cover gaskets. Resealing the valve cover will generally correct this concern. However, the valve covers should be inspected and replaced if damaged.
The quick-connect fittings for the heater hoses tend to leak engine coolant. This problem commonly occurs because the metal housing has become brittle, which can break and cause leaks.
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.
1994 GMC Suburban 1500 QuestionsWashed engine now hesitate to start and running sluggish no power also dies out (1 answer)
Always have to add oil & instead of the oil gauge reading low it reads high before the oil gets added. Is the gauge faulty?