rear tank problems - Diesel Forum

wellsstyle · 07-26-2008, 01:57 PM

my 86 250 rear tank sending unit broke off. I scavenged an 83 250 tank and put it on my 86. the hookups were different but i think i got them connected right. when i switch to the rear tank it registers right on how full it is. but its not getting the fuel to the engine. after about 5-10mins of idle the engine dies. runs out of fuel. anyone know what could be wrong. what should i check for. thanks

cdnsarguy · 07-26-2008, 11:50 PM

Large hose is inlet small is return...... how full is the tank. Would the pickup be broken off in the new tank..... usually stalls/surges at 1/4 full.

wellsstyle · 07-27-2008, 08:26 AM

yeah, i think it is about 1/4 full. I took the tank off of an 83 and it worked fine on that. I may have broken it on the transfer. thanks

wellsstyle · 07-27-2008, 11:40 AM

I dropped the tank. hooked up the fuel line while the tank was on the ground using a longer peice of line. then tried running the truck off that tank. everything was fine. then reinstalled the tank and now everything runs fine. maybe the fuel line was crimped or something. although my gauge reads half full when its really only a quarter full. thanks