Back to 2002 Chevrolet Express

2002 CHEVROLET EXPRESS

6.0L V8 VortecRWDAUTOMATICgas
Repairs0Labor593Torque4889Fluid7DTC745Battery1Maintenance0Recalls0
P0734high severityPowertrain

Gear 4 Incorrect Ratio

on 2002 Chevrolet Express 6.0L V8 Vortec · RWD

What this code means

Incorrect gear ratio detected in 4th gear.

Symptoms

  • Slipping in 4th
  • No overdrive feel

Common causes

  • 4th gear components worn
  • Solenoid issue

Diagnostic steps

  1. Monitor gear ratio
  2. Test solenoids

Repair notes

Service transmission.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →