truck not starting all the time...

[1lowdiesel]

i hate posting stuff like this because it pisses me off that i can't figure it out. so last week i was having a hard time starting my truck. i was throwing a p0088 and p0650 codes.

upon cranking the truck there would be quite a bit of white smoke. then it would start for a sec then die, then start for a sec then die. it would keep doing this till the batteries get low. it would take at least 10-20 cranks to start then die.

so after checking out the p0088 code i tried to tap the reg to maybe free it up. it didn't work at first but about 10min later after trying to start it then letting the batteries charge back up it started and stayed running.

so i let it run for about 2.5hrs. i get back to the shop, shut it off, let it sit for 30min, go to start it with the key and it fires right up numerous times. i'm thinking sweet. NOT!

before i go to leave about an hour later i try to start it again and nothing. at this point i'm ready to burn this damn thing.

i've already had it back to the dealer for the key thing and they "fixed it" but obviously not

sorry for the long explanation... any ideas

 

[fast03]

so engine warm or cold? maybe a loose ecm harness? Bad ground on one of the batteries? Good luck

 

[1lowdiesel]

seems to smoke when it's cold. once it warms up it'll crank right over... when i jump the starter. i do need to bring it back to the dealer so they can re-fix the ignition problem. i paid them 4and some change to fix it and a week later it was f'n up again. that was over a year ago but i've only put maybe 500mi on it since then.

i have both batts to one ground spot.

 

[1lowdiesel]

i'm also getting a 484d code now constantly along with the p0650. i don't have the 0088 code anymore though. i wrote down about 15 codes the PPE gave me but i left them at the shop.

this is driving me nuts. i managed to get the truck started the other day, drove it around for 15min and the speedo and tach weren't working along with the cel and other lights. i kept trying to clear the code and finally it did and everything started working again. i shut the truck off and it started back up with the key.

well, let the truck sit over night and the same shit all over again.

i did try a different programmer and it seems that it's not seeing the key being turned on.

any ideas?

 

[Linden]

My old gasser would do thE same shit If one of my batteries had a bad cell it was a bitch going threw 5 ****ing batteries but it always seemed to be the one dedicated to the engine. It has to do with the key module shit check your batteries see if one isn't ko'd

 

[1lowdiesel]

thanks man, i'll have to try and load test them. any reason you can think that even with the charger on em it would still do it? is it just that dead you think?

 

[1lowdiesel]

well i've load tested the batts after letting them sit for 3 days and they tested good.

FML

 

[1lowdiesel]

anyone have any other ideas for me to try.

anyone have a diagram of the ignition harness that i can try and trace.