1999 GMC Sonoma Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1999 GMC Sonoma
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1999 GMC Sonoma ProblemsReplace Fuel Filter Every 30,000 to Prevent Fuel Pump Failure
The distributor may develop internal faults. This can cause a rough running engine or stalling condition and the Check Engine Light may or may not illuminate. The distributor should be overhauled or replaced to correct this concern.
A fluid leak may develop from the transmission output shaft seal. This leak may cause the transmission mount to become oil soaked and require replacement of the mount along with the leak repair.
1999 GMC Sonoma QuestionsWhat can cause transmission to not go in gear (1 answer)
The truck does not overheat and it runs ok. There are no codes in computer. Also coolant is new. Standard coolant. Not what came in the truck. Thanks