Hello. I was driving my vehicle on freeway when it just suddenly died on me. No warning of any kind. Still had full battery power to everything, but no engine power. After being able to get to side of the road, I attempted to try and restart it several times. It cranked but wouldn't start. It was over 104 degrees outside that day and so instead of trying to mess with it, had it towed home. Tonight I thought to look at fuses and sure enough the 15 amp fuel injection fuse was blown. I tried replacing it several times and each time it would blow as soon as I turned the key. Any advice would be greatly appreciated. After having it towed the other night, I can not afford to have it towed now to a repair shop. Please help. I do have some mechanical knowledge and I am guessing there is a wire short somewhere, but in all honesty I do not know how to go about finding where. Or how to maybe test the fuel pump relay to see if it is culprit. Thank you
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Hello, it's terribly difficult to provide advice on the scale you're hoping for, because it means sharing wiring diagram information and components on the circuit to be inspected. Yes, it does sound like you'll have to perform circuit testing to see what's going on. I'd strongly suggest obtaining the wiring diagram and shop manual to review on your own as you perform testing.
I can say that the 15 amp fuel injection fuse is circuit protection for circuit 639, which is a pink wire that splices into other components -- first a splice to another two pink wires - one that goes to the crankshaft position sensor, and one that goes to the camshaft position sensor. Then, the original pink circuit wire continues to another splice that splits into 6 pink wires to the 6 injectors.
I do not feel like any of the end components - the 2 sensors or the 6 injectors - are the failures; it's far more likely that there's a short somewhere in a wire due to damage caused by some kind of outside influence.
It's actually as simple as that. Follow the pink wires from that fuse. Note that the other 2 fuses in that box -- one that goes to the engine control module and the other to the ignition module are also leading to pink wires! So make sure you have the right ones.
Good luck...
