We don't have a lot of GMC Sonoma fuel system problems on file — feel free to add yours here. The most common Sonoma fuel system problems cost $800 to fix & occur at 104,000 miles. Click on a year below.

Worst Fuel System Problems
fuel tank rusted through and leaking 1997 GMC Sonoma
inaccurate fuel gauge 1999 GMC Sonoma
flex fuel sensor faulty 2000 GMC Sonoma