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Home >> Isuzu >> 2008 >> i-290 Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 31 (Automatic Transmission - 4L60-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information And Procedures >> No Fourth Gear, or Slips in Fourth Gear

No Fourth Gear, or Slips in Fourth Gear

WARNING: This page is about a different car, the 2009 GMC Canyon and 2009 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
No 4th or Slipping 4th

Checks Causes
Checkball #2, 4, 8 or 12 Valve body checkball in wrong location or an additional checkball is installed. Refer to Control Valve Body Installation .
Orificed Cup Plug (240) Not fully pressed into pump cover. Refer to Oil Pump Stator Shaft Bushing Replacement .
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