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here is the info. if this isnt the right forum let me know.
truck is a 2005 chevy silverado swb 4x4. now has a 5.3 with flat top pistons 4 valve relief, big mutha thumper cam( cam card attached)....

not sure yet, but think the problem may be a bad body module causing an intermittent electrical draw. I will post the tune the truck is running on now and the engine info and cam info. should i post...

Ok I will post the codes and tune as soon as I get the truck and laptop back. Also it's back to not starting until tune is reloaded. I read the tune before reflashing and compared it to the tune I...

I figured it out. I was reading on my phone. :doh:

Well it won't let me click on the attachment. Could it be because I don't have a device registered in my name yet?

I currently don't have access to the repository,because I don't have my own device yet. But I will have very soon. I will have his laptop back this afternoon,so I will post the current tune at that...

Sorry Maf not mad. See above

Sorry guys I know better. I've been turning wrenches for 43 years. Update: kept loading tune and driving it around. Last trip went about 30 miles in various driving situations and now it starts fine....

I can load the tune, start the truck and drive it as long as I don't shut it off. Then only way to get it to start again is to reload tune again.