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Originally Posted by ogea123
We got a 1990 ford f150 the fuel filter,both air filters, the plug wires, and the fuel and master power relays were changed. But the truck can be run fine for a while then sit and it will not start!!!!  It has done it before and we keep replacing parts on it and we cant afford to keep replacing different parts on it. Does anyone know why the truck is doing this could it be the computer?? We really need to find out because we need a vehicle to drive. |
You could do a test when it won't start to see if you have an ignition problem or a fuel delivery problem. I know this vintage of Fords well enough to say 90% it's an ignition problem. One of these: 1. the coil 2. the ignition module, bolted to the side of the distributor 3. the PIP inside the distributor. I would start off by replacing the coil with a cheap one from Autozone if you have one near you. Post back with any questions.