No First or Second Gear/No Third or Fourth Gear

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

No 1st or 2nd/No 3rd or 4th

Checks	Causes
2-3 Shift Solenoid Valve (367B)	Sediment is in the valves The electrical connection is faulty Damaged seal