Transmission
Repair
& Rebuild
Precision transmission repair, rebuilding, diagnostics and drivetrain service from a shop that specializes in the powertrain.
Specialists in the work that matters.
PowertrainWorx LLC is a specialty automotive repair shop focused on transmission repair, transmission rebuilding, diagnostics and drivetrain service.
Owner/operator Fernando Jimenez takes a hands-on approach to every job, with an emphasis on quality workmanship, honest diagnosis and clear communication.
Transmission & drivetrain expertise.
From diagnosis to rebuild, PowertrainWorx focuses on getting to the real problem and doing the work right.
Transmission Rebuilding
Detailed disassembly, inspection and rebuilding of transmission components.
Transmission Repair
Repair solutions for transmission problems, wear and component failures.
Diagnostics
Systematic diagnosis to identify the source of transmission and drivetrain concerns.
Transmission Service
Maintenance and service designed to help keep transmissions operating properly.
Drivetrain Service
Focused service for the components that transfer power to the road.
Performance & Heavy-Duty
Specialized attention for demanding applications and performance needs.
Real vehicles. Real customers. Real transmission work.
A look at some of the vehicles entrusted to PowertrainWorx, from modern luxury vehicles to classic American cars and trucks.
Real shop. Real work.
See the equipment, vehicles and transmission components behind the work.
Top 3 — 2026 Award Winner.
PowertrainWorx LLC is recognized as a Top 3 2026 Award Winner by BusinessRate for Auto Repair Shop in Sunnyvale, California.
Read Our Google ReviewsGoogle Reviews
See what customers are saying about their experience with PowertrainWorx.
View ReviewsLet's get you back on the road.
Call PowertrainWorx to discuss your transmission or drivetrain needs.