What are the most common GMC Sonoma problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1991-2004 GMC Sonoma has 3 documented issues. The most frequently reported are: 4.3L V6 Intake Manifold Gasket Leak, In-Tank Fuel Pump Failure, Exterior Door Handle Breakage. None are rated critical, but regular maintenance is recommended.
Is the GMC Sonoma reliable?
The 1991-2004 GMC Sonoma has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common GMC Sonoma problems?
Repair costs for known GMC Sonoma issues range from $30 to $900, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What year GMC Sonoma is the most reliable?
Reliability varies across model years of the GMC Sonoma. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 1991-2004 GMC Sonoma with 3 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.
What is the 1996-2004 GMC Sonoma 4.3L V6 Intake Manifold Gasket Leak?
Same intake gasket issue as the S-10 platform. The 4.3L Vortec V6 intake gaskets fail from heat cycling. Repairs typically run $400-$900. Severity: medium.
What is the 1991-2004 GMC Sonoma In-Tank Fuel Pump Failure?
Same fuel pump failure issues as the S-10. The in-tank pump fails from heat and debris. Repairs typically run $400-$800. Severity: medium.
What is the 1994-2004 GMC Sonoma Exterior Door Handle Breakage?
The plastic exterior door handles break at the pivot point, making it impossible to open the door from outside. The brittle plastic cracks in cold weather and from normal UV degradation over time. Repairs typically run $30-$150. Severity: low.
