How hard is it to install a fuel level sending unit in a 97 blazer 4.3?

Question

How hard is it to install a fuel level sending unit in a 97 blazer 4.3?

Answer 1

You have to remove the fuel tank to replace it. The sending unit/fuel pump are in the gas tank as one unit and may have to be replaced that way........................UJN

Answer 2

It's not hard but it takes a little work to do.

You have to first remove the gasoline from the tank (either siphoning or pumping it out) and then you have to unbolt the tank and lower it to the ground so that you can access the fuel lines. You will probably have to remove the fuel lines to make the send unit more accessible.

There is a retaining lock ring that keeps the send unit in place. Just twist it off with a pair of pliers. You could probably tap it around with a wooden mallet and a short 2x4 section but I wouldn't reccommend using something metal like a hammer and screwdriver or anything that can create sparks.

Answer 3

you have to drop the tank and depending on how much gas is in the tank at the time it can be a real hard job to do,the best thing you can do is get all the gas from it that you can the less it weighs the easier it will be to do,good luck with it.

Answer 4

A whole lot easier if the tank is empty.  A couple of bolts which hold two traps which holds the gas tank up, and the tank is loose where the fuel pump/sender unit is located.  Also loosen the hose clamp holding the fuel fill pipe/hose to the tank and allow the weight of the tank to help you pull loose the tank from the hose.  Be careful not to rip any of the hoses or wires apart between the sender unit and the conglomerate of hoses (usually 3-4) and wires off.  I like to take air pressure and blow off the derbis from the top of the tank before removing the sender unit.  By the way, to remove the sender from most tanks you twist a big plastic ring of the sender which secures the unit to the tank.  Installation is reverse order...

Hope this helps....