The founders of B&N Transmissions in Ottawa, Ontario, Canada, have had a journey that few in the industry have experienced. The shop founders are two brothers who fled their native country of Uganda, Africa in the 1970s under pressure from President Idi Amin, known as the “Butcher of Uganda.” Brian Charania moved to Canada first
I came to care for this 2007 Nissan Altima that would go into limp mode with transmission codes.
Below are the diagrams for vacuum testing GM 8L90 transmissions. Note: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Test locations are pointed to with an arrow. Springs are not shown for visual clarity. A low vacuum reading indicates wear. For specific vacuum test information, refer