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Hello, You have the junk problematic, antiquated VATS which comes with a resistor chip in the ignition key. The reason the key from VIN does not work is over the life of the car, the key/ignition/VATS
Hello, I see a slight little problem to your PATS analysis on this vehicle. The F-250, F-350, F-450 were not equipped with the ignition transponder system until 2008. Unless this truck is an anomaly
Is the engine skipping? It is possible that it has broken a valve spring or some other valve train problem. But that would almost always be associated with a skip. It might be wise to pull the valve covers
Hello again David! Thanks for your question. First, it's no problem at all sending one question through at a time. Just remember to rate each reply please. Appreciate it. The 50c stamp you
Common issue. Your PASSLOCK 1 system is in breach and needs to be bypassed. See www.GMPASSLOCK.com for more information and what you will need to get around this situation. Not aftermarket. (FYI

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