Fuel pump Where do I cut the panel hole acess on a 91' park to remove the fuel pump?

I may well be, but I do know that there is minimal clearance between the top of the fuel tank and the bottom of the floor board under the rear seat. So obviously one should not use a torch (open flame near gasoline) and I would not recommend a saw or grinder (sparks near gasoline). The chances of actually cutting an access hole without causing damage to the tank, the tank sending unit or yourself are relativley small. Also removing the tank in order to service the fuel pump is quite simple and only takes about an hour out and about an hour in. I may well be, but I do know that there is minimal clearance between the top of the fuel tank and the bottom of the floor board under the rear seat. So obviously one should not use a torch (open flame near gasoline) and I would not recommend a saw or grinder (sparks near gasoline). The chances of actually cutting an access hole without causing damage to the tank, the tank sending unit or yourself are relativley small. Also removing the tank in order to service the fuel pump is quite simple and only takes about an hour out and about an hour in.

I do not envy you predicament. I checked on just how big the sending units are and of the two possibilities I am not sure if either can be removed from the top side due to the lengths of the lines. I think I have given you the two links to the sending unit pictures but we will see. 25027211 and 25027568. If not you could look up application at www.acdelco.com Maybe the pictures can give you some idea of what may be your best approach. If you do decide to use an air chisel remember these too will produce sparks that given the right circumstance could be tragic. Is there any chance of clearing the snow from under and beating on the tank while someone tries to crank the vehicle? This may work to allow you enough run time to move the vehicle to a better location. I do not envy you predicament. I checked on just how big the sending units are and of the two possibilities I am not sure if either can be removed from the top side due to the lengths of the lines. I think I have given you the two links to the sending unit pictures but we will see. 25027211 and 25027568. If not you could look up application at www.acdelco.com Maybe the pictures can give you some idea of what may be your best approach. If you do decide to use an air chisel remember these too will produce sparks that given the right circumstance could be tragic. Is there any chance of clearing the snow from under and beating on the tank while someone tries to crank the vehicle? This may work to allow you enough run time to move the vehicle to a better location.