5 /5 Prado Ralph: I want to thank David at DR Auto Service in Edinburg Texas for fixing my 2002 Ford F250 Super Duty. The truck had been shaking, and running rough. The spark plugs had bee changed but the Red Engine light was still on. I had already taken it to Autozone and Oreillys and had them analyze it with their scanners. One store said the problem was a part that does not exist on my truck and the other could not find any issues. But, then after taking over to David he was able to find and fix and the electrical problem quickly. The trucks sounds and runs like new now.
