Here is what I need you to do. You are going to check codes and tell me what they are. All trouble codes on your truck will be two digits, for example 12, 15, 45.
Get in the truck and cycle the key from off to on 3 times. The third time, let it in the run position (do not start the engine). Wait a few seconds and the check engine light will begin to flash. Count the flashes. If will blink, have a slight pause, then start again. That will give you the two digit code. Between codes, if there is more than one, there is a longer pause. When you get to code 55, it is done. NOTE: If you only get a 55, that means there are no codes in the computer.
Let me know what you find.
Sunday, October 10th, 2010 AT 11:07 PM