fuel troubles

FORD F-250
Avatar
F250OBY
  • MEMBER
  • 1 POST
i have a 1981 ford f-250 with a 300 straight six and 2 fuel tanks thats not getting fuel to the carb. i have checked the engine mounted mechanical fuel pump and it is operating properly and the strainers in both fuel tanks are clean. i am getting very small amounts of fuel at good pressure to the carb. but it is mostly air. what do you suppose the problem could be?
Feb 18, 2007 at 2:54 PM
Advertisement
Avatar
KIN CHAN
  • MEMBER
  • 453 POSTS
use compress air and make sure supplies and return lines are all clear ...then place a transpant hose on carb inlet ...crank and watch the fuel move into the carb ...also place a fuel pressure gage between pump and carb ...if u are not get over 3.5 -5 psi or see bubble into the carb ...ur pump is junk....and please be specific when u say cpts that are chk out ...what method did u use?...a visual chk out is not 100% positive ....wehave more customers or even shop swear theyhave good cpts or chk out and it turn out otherwise after we went 1000 miles of circle ....iif u wanna eliminate the possiblity of bad tankor junk in the tank..then just use a can of gas and a siphon hose to the pum and see if ur engine will start ....god luck man
Feb 18, 2007 at 3:40 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.