I replaced the fuel pump relay. Tested for power at the fuel pump connection-four prongs- 3 are continuous with ground and one gives intermintent readings around 11 volts but not consistent. continuity is good from this prong to a connection under the hood. Fusable links look ok What next????
will not start has spark on 1990 Ford E-150
Some causes on the car that won't start is when you have a vacume leak. try checking PCV valve intake manifold which is located on the oil valve cover and try pulling out the hoses then you will see the PCV valve. this should be replace every 24000 miles. The best part is cost only $3.00. And also check all the hoses and intake manifold including your valve covers... hopes this help, good luck.