Me and my dad changed the fuel pump in my 01 blazer and sence then my fuel guage stopped working and stayes on full the whole time. Me and my dad also had to rewire the plug for fuel pump does anyone know why it stopped working??

 

Check the ground wire..

 

On what and what color??

 

Look at the rear ground lead to the slightly off-center on the rear cross-member,you probably broke the wire inadvertantly while dropping the tank,thats all...

 

Hope that works for you. I unfortunately knocked the float off on install, it's only held on by a plastic clip.

 

Ok thanks ill check that

 

My dad said he's positive we put it back on but we will check when he gets off work

 

if its loose that could cause the problem too. the fuel sender and pump seem to be very picky about their grounds being good.

 

Ok ill check that too