I have a fuel leak on my 99 blazer 2dr right over the tank it looks like a steel line is rusted out .Before i drop the tank i would like to buy new lines.Do they come in standard lenths or sets or replacement pieces? Thanks Jim

 

I would say check with different parts suppliers. Also check GMPartsShop.com, & RockAuto.

 

The pressure line is 3/8" and the return is 5/16". You can use compression fittings and steel brake line to repair it. Very inexpensive way to repair it. Compression fittings are rated at 170psi, maximum fuel pressure is 108psi.

 

Thanks.. I would like to see what the connections look like on top of tank
where plastic lines from pump connect to steel lines . Cant find a pic or diagram. Thanks Jim

 

You won't find a picture like that The module connection is plastic and the line is plastic with an elbow on one end, and a straight fitting on the module end. The plastic line, (elbow) connects to the steel line just above of the tank, about 6" from where your line rusted out. Most auto parts stores have it,
Buy Dorman - OE Solutions Steel Fuel Line Assortment 1 Each: 5/16 and 3/8 Inch x 12 Inch Double Bead Lines 800-159 at Advance Auto Parts_____

Cut the tube right next to one of the beads, bend the tube to fit and stick a compression fitting on.