I sure hope someone can help?I bought a new sending unit over the winter and checked it before installing it.It worked fine and also after installing it.The problem now is the gauge started to bounce back &forth and now peg to the full mark.I checked and regrounded it and all the connections seem to fine.I pulled the unit out and raised the float up and down and it work's a o k .But when i reinstall it it goes back to the same thing it peg's to full ,but when i rock the truck a bit the gas gauge will briefly register the right ammount of fuel then stay at full.I am baffeled ,any help would be great thank's Chad.
