ak diesel driver
6.5 driver
yes but wait until you get it up to -1.94 than you'll hear the rattle
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GMTDScan Tech ?
- Thread starter Crankme69
- Start date
buddy
Active Member
It will chug and run a little funky while in timeset and TDCO learn, because its dropping timing from around 14-18 crank degrees advance to 7. 3.5 cam degrees would be 7 crank degrees.
Crankme69
New Member
Well I ran my 100 miler round trip today to work & back...it always ran great but it seems to have more for less???
It really seems more responsive on the expressway, might be my imagination but it seems to have more pep for less pedal?
Is it real or? Will that TDC offset bump from +.035 to -0.18 make a difference that I can feel or is it just my feeble mind playing tricks on me?
It really seems more responsive on the expressway, might be my imagination but it seems to have more pep for less pedal?
Is it real or? Will that TDC offset bump from +.035 to -0.18 make a difference that I can feel or is it just my feeble mind playing tricks on me?
buddy
Active Member
Well, like I said, you still arent even to where it would come from the factory 
Think of it as a timing offset, so you just gained 1 degree advance at every speed, and before you were retarding what the PCM really desired by 1 degree. So yes it can make a difference.
Think of it as a timing offset, so you just gained 1 degree advance at every speed, and before you were retarding what the PCM really desired by 1 degree. So yes it can make a difference.
Crankme69
New Member
You are for sure convincing me to get a wrench and move that IP an RCH!
It always seemed to me to have some light PING like spark knock prior, now I don't know chit from chinola about these diesels but now that it's been adjusted or advanced it's not pinging & just in general seems to have less rattle under light acceleration, different fuels is what I used to attribute that too prior, got 2 places I fill her up...need more time to see if it's the offset adjustment or my recent fill & qt of 2 stroke that is making her quiet...hmmmm
It always seemed to me to have some light PING like spark knock prior, now I don't know chit from chinola about these diesels but now that it's been adjusted or advanced it's not pinging & just in general seems to have less rattle under light acceleration, different fuels is what I used to attribute that too prior, got 2 places I fill her up...need more time to see if it's the offset adjustment or my recent fill & qt of 2 stroke that is making her quiet...hmmmm
Matt Bachand
Depends on the 6.5
It's not in your head. That the exact same feeling I had. More pep from less pedal it felt. I noticed it immediately. Thought the same thing, in my head. But it drove so much more responsive there just was no way.
Crankme69
New Member
I have to agree it definitely is more responsive to the go pedal.
Just as soon as the weather breaks here...I'm am going to conjure up the courage to adjust the pump...hope that don't turn into something that makes me wish i had not started it.
I'm going to pull the intake and swap it for the F, so I'll be that far in there, while that will also allow me to verify all the grounds are clean and delete all the EGR vacuum solenoids and hoses.
It starts real well with hardly any smoke runs smooth even on the coldest mornings with it plugged in or not, I know it's a risk but I just can not see doing anything with the injectors just yet.
Is there anyone in the Joliet Ill area that has the pump tools that I could rent?
Just as soon as the weather breaks here...I'm am going to conjure up the courage to adjust the pump...hope that don't turn into something that makes me wish i had not started it.
I'm going to pull the intake and swap it for the F, so I'll be that far in there, while that will also allow me to verify all the grounds are clean and delete all the EGR vacuum solenoids and hoses.
It starts real well with hardly any smoke runs smooth even on the coldest mornings with it plugged in or not, I know it's a risk but I just can not see doing anything with the injectors just yet.
Is there anyone in the Joliet Ill area that has the pump tools that I could rent?
buddy
Active Member
Perhaps the Blues Brothers
Crankme69
New Member
):h
Woody35
Active Member
i love driving my truck kinda hard when its cold.(i know its not good for it). it accerlates just a tad faster because of the computer advancing the timing because of the cold