Why does the nsbu need to be replaced?
Why does the NSBU need to be replaced? – due to road salt/water/debris getting into the switch via the switch hub and contaminates and corrodes the internals. The crap gets kicked up onto the switch on all left hand turns which affects the operation of the transmission because transmission shifts and functions are controlled by this switch.
How big should metal clip be on nsbu switch?
The metal clip (neutral assurance bracket) on the switch helps to ensure the switch is properly aligned to the shaft. For the geeks out there, the bolts should be tightened to 18-21 lb ft. Now it’s ok to remove the metal clip from the NSBU housing. 9. slid the black splash shield onto the NSBU switch so that it fits securely against the switch.
What are the DIC codes for the nsbu switch?
– following DIC codes MAY suggest the NSBU as the culprit: P0700, P0708, P0847, P0872, P0875, P1711 and P1713. – no engagement even though your shifter is in D or R (like you were in neutral)…this was my situation (and I received a SEL (service engine light) code P0700). – you will only have forward motion in 3rd gear or reverse.
How do you replace the nsbu switch on a Duramax?
Remove the 2 bolts that attach the NSBU switch (the front driveshaft will get in the way a bit but you should be able to access the bolt with the socket) and pull off the old NSBU switch. There’ll be some resistance when you pull it off.
Why does the NSBU need to be replaced? – due to road salt/water/debris getting into the switch via the switch hub and contaminates and corrodes the internals. The crap gets kicked up onto the switch on all left hand turns which affects the operation of the transmission because transmission shifts and functions are controlled by this switch.
Remove the 2 bolts that attach the NSBU switch (the front driveshaft will get in the way a bit but you should be able to access the bolt with the socket) and pull off the old NSBU switch. There’ll be some resistance when you pull it off.
– following DIC codes MAY suggest the NSBU as the culprit: P0700, P0708, P0847, P0872, P0875, P1711 and P1713. – no engagement even though your shifter is in D or R (like you were in neutral)…this was my situation (and I received a SEL (service engine light) code P0700). – you will only have forward motion in 3rd gear or reverse.
The metal clip (neutral assurance bracket) on the switch helps to ensure the switch is properly aligned to the shaft. For the geeks out there, the bolts should be tightened to 18-21 lb ft. Now it’s ok to remove the metal clip from the NSBU housing. 9. slid the black splash shield onto the NSBU switch so that it fits securely against the switch.