LITTLE TROUBLE THIS MORNING ... NEED HELP!!

GeauxTigers · #1 Sat, January 2nd, 2010, 10:08 AM

This morning, when I went to start my truck (I had let it sit for about 24hrs) I noticed when the truck went to turn over, the screen of the Gryphon went to all white for just a split second and the truck didn't turn over on the first crank. So, I turned the truck completely off...went to crank again....turned over this time, but the Gryphon was completely reset. My gearing ratio was wrong, shift points wrong, AMPG reading etc.

So I turned the truck off again , let it sit for a minute, then started it again. Again, it flashed the all white screen ....completely reset itself. So, it didn't just reset once, but it's resetting everytime I turn the truck off and back on again.

What to do....thanks for help. I'll be at work all day, but I heading to the mountains tmrw and need this thing working. Thanks guys !!!

Happy New Years !!

shotgun · #2 Sat, January 2nd, 2010, 10:48 AM

Jack or 88 (moderators) will probably answer with, "Check your battery."

GeauxTigers · #3 Sat, January 2nd, 2010, 11:03 AM

Everything seems "ok" with the battery as far as amps go...don't know what else to check.

So, I unhooked the Gryphon from the truck. Plugged it back in (with the truck in accessory position) and programmed my settings back into the truck . It prompted me to turn the key off, then back on, but not starting it....like normal.

I let the truck run for a bit. It sounded pretty bad (knocking). Then turned the truck off.....waited a couple, and started it back to see if it would hold my settings, and it had reset again....

Just some more FYI. Thanks guys !

***Power Hungry*** · #4 Sat, January 2nd, 2010, 11:27 AM

Whenever the programmer resets like that, it's nearly always an indication that the battery voltage is dropping below 9 volts when cranking. The odd thing is that you can have a weak cell in the battery and still be able to crank, but the voltage will drop pretty low. The PCM can handle voltages down to about 8 volts before it has trouble running the engine, but by the time you get that low the engine won't crank anyway so it doesn't matter. I'd seriously give the battery another look.

I don't have any explanation as to the "knocking" you're experiencing, especially if your PCM was already programmed back to stock. It's very possible that the cam phasers were making some noise. They like to rattle a bit until the oil pressure comes up. How cold was it when you started this morning? Temps may be playing a factor in both issues.

Let me know.

GeauxTigers · #5 Sat, January 2nd, 2010, 11:45 AM

I think the weather channel said 19 was the over night low....with the 20 mph wind .... I'd guess it was closer to 15 or so. So I should definitly look into the battery then....I work at a dealership so I'll get some one of my techs to look at it....keep you updated.

Thanks Bill !