Yeah, it was difficult for me to make the decision to buy the ECM...I only paid $200 for the whole truck...lol. After doing some research I found out that these particular ECMs are among a group of ECMs that ford used for several years that are notorious for failing, especially when subjected to high operating temps in the southern states. The electrolyte leaks out of the capacitors and corrodes the circuit board. This was exactly what had happened to mine.