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Well doesn't hurt to try it <img src="/forums/images/graemlins/smile.gif" alt="" />. So how do you test the ignitor/Coil? Replace the old with a new and see if it works?


Im not sure how to do the test. I just borrowed the whole coil/ignitor assembly from another truck and it fired right up. (about 10 min fix) I had the exact same symptoms and tried many of the test you've been running through. Bought the new TPS, tested the injector wires, had the injectors tested and cleaned, etc....