99BB3500
OBS Enthusiast
There are different flow rates for the pumps. 20gph, 32gph and 70gph. I guess I could just take the VIN in and see what comes up.
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Check to see if the SES bulb in the cluster is burned out. It happened on my 96 G1500………It hasn’t thrown an SES light at all so maybe it’s already done? The existing exhaust is old and getting ready to fall apart so it’ll get replaced also
NF2 is Federal emissions, Tier 1. Maybe the hanger assembly has an extra vent tube or something. I don't know how the fuel pump would be affected.
I don't doubt that the HANGER assembly might be different--vent tubes, pressure sensors, diameter of the seal or whatever...but if you replace the pump and filter sock (only) and keep the hanger...I don't see how the pumps are any different.Some of the pumps have a pressure sensor for the evap system and some dont. It looks just like the map sensor on the intake manifold.
I don't doubt that the HANGER assembly might be different--vent tubes, pressure sensors, diameter of the seal or whatever...but if you replace the pump and filter sock (only) and keep the hanger...I don't see how the pumps are any different.