88 ford f 350 fuel system has pressure but engine not getting gas
Asked by Gio Apr 13, 2015 at 11:56 AM about the 1988 Ford F-350 STD Standard Cab LB
Question type: Maintenance & Repair
fuel comes out of the pressure release valve by injectors when checked. plugs have spark. engine began to turn over when we sprayed brake cleaner into the throttle body. Our guess is something is not telling the fuel injectors to spray fuel into the cylinders?
10 Answers
CamaroCollector answered 9 years ago
Check to see what the fuel pressure is, not enough pressure, the system will not work.
CamaroCollector answered 9 years ago
What was the pressure reading,should be around 50psi if it's to low the injectors won't work properly.
fuel pump, fuel filter, and fuel pressure regulator all replaced, so I'm guessing it's something else?
CamaroCollector answered 9 years ago
Is that 38 psi with the new pump? if so sounds like a defective pump, 1 out of 10 new pumps are defective on average.
does that have a low pressure in tank and a high pressure pump along the framerail?
also i have had problems with the fuel injector lines getting rusted up and plugging
had a hi pressure on framerail. had to take it in, computer was bad.
Got f350 with 5.4 is there any relays that makes it shut off