tekrsq
Full Access Members
Ok...I've been having intermittent issues with the truck suddenly shutting off at stoplights. It idles fine, then just shuts off for no reason. When it shuts off, it will crank & crank, but not start, and has a rapidly blinking theft light, and dashes across the odometer. After sitting for a couple of hours, it will restart.
I originally thought this was an issue with my SCT controller because I didn't have this issue until there was an error while changing tunes on the truck. While troubleshotting that issue, I found out my alternator was not charging at idle (again..intermittent), and was killing the battery. Both were replaced, and I had not any issues for a couple of weeks..until last night.
So, after a ton more research, I have found the possibility it could be either a bad PCM relay, or PCM diode. The relay is easy enough to find, but I cannot find the diode ANYWHERE. The diode in my truck is F57B-14A604-A. All I can find is diode F5TZ-14A604-A. Are they the same diode....just updated with a new number ?? If not, any idea what I can use in place of my original diode ??
I originally thought this was an issue with my SCT controller because I didn't have this issue until there was an error while changing tunes on the truck. While troubleshotting that issue, I found out my alternator was not charging at idle (again..intermittent), and was killing the battery. Both were replaced, and I had not any issues for a couple of weeks..until last night.
So, after a ton more research, I have found the possibility it could be either a bad PCM relay, or PCM diode. The relay is easy enough to find, but I cannot find the diode ANYWHERE. The diode in my truck is F57B-14A604-A. All I can find is diode F5TZ-14A604-A. Are they the same diode....just updated with a new number ?? If not, any idea what I can use in place of my original diode ??