Battery terminals are clean, but how do we test the other things? I unplugged the EBP and the fan and still no crank. I can't see how to test voltage to the PCM.No Crank
-Check batteries and connections, voltage should stay above 10 volts during cranking
-The PCM controls the starter, so if PCM voltage drops below 9.5v the PCM shuts off and won’t control the starter.
-If the fan clutch shorts out it will draw the PCM voltage to zero, and thus you will have a no crank situation.
-EBP sensor shorted out will shutdown PCM
Despite what the dealer may have told you, there's no fail-safe system to shut the truck down. The truck simply would not run because it couldn't build oil pressure to operate the injectors. When the IPR valve close, pressure goes up. When it opens, pressure goes down.This for the whole "Crank no Start" issue:
I had this happen to me, luckily my truck, Delilah, stalled right next to the Ford dealership. (Proximity sensors maybe?? xD)
$700 and 3 days later, they discovered it was my IPR valve had given out. The little mesh had broken, and the engine detected a change in pressure. It automatically shutdown to avoid any damage.
This way, they can say that Ford is looking out for you. If they told the truth (if they know the truth) then they would be admitting to a problem.Despite what the dealer may have told you, there's no fail-safe system to shut the truck down. The truck simply would not run because it couldn't build oil pressure to operate the injectors. When the IPR valve close, pressure goes up. When it opens, pressure goes down.
bismic, I just did a egr replace (6 tube) and an oil cooler, how long does it take to get the air out of oil cooler and oil pressure up? I have low pressure,It takes awhile to get all the air out after an oil cooler replacement. Also, if you are not extra clean, you can damage the IPR (plug the screen).