Dod delete issue?
Thread Starter
Teching In
Joined: Feb 2013
Posts: 10
Likes: 0
From: louisiana
Dod delete issue? Ok fellas could use a hand. I dropped a lifter in my 5.3 2010 silverado. I replaced the cam, valley cover, oil pump, and lifters with ls7 lifters. I then brought my truck to a local shop with a dyno to tune out the DOD. When I picked up my truck the tuner stated that he tuned it out and I am good to go. I have noticed that if i accelerate and raise my rpm above say 3500. My truck would then jerk at highway speed intermittently. As if I tapped the brake. The problem went away after key cycle. It's my truck I use to do oilfield sales so I do an extreme amount of highway driving and was reliable so I ignored it thinking it maybe a tuning issue. Well I made the 12hour trip home for Christmas with no issue. Fired the truck up today and its giving me the service stabilitrak reduced engine power like it did the day I fired it after deleting the dod. Seems to be running on 4 cylinders. I'm debating buying hp tuners and tuning it myself or could I have another issue?
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Thread Starter
Teching In
Joined: Feb 2013
Posts: 10
Likes: 0
From: louisiana
Stock 5.3 cam. I'm confident. I'm not touching fuel tables or timing. Was thinking of raising the temperature of the dod afm so that it never activates during normal operating temperature.
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To disable DOD in the tune is as simple as just disabling it in one of the tables. Basicly on or off. Doesnt require a full tune.
Ive tuned alot of trucks with DOD and ive disabled it on just about everyone. Never an issue.
Ive also turned it off for customers tht just hated it goin in 4cyl mode. Didnt touch anything else in the tune.
Ive tuned alot of trucks with DOD and ive disabled it on just about everyone. Never an issue.
Ive also turned it off for customers tht just hated it goin in 4cyl mode. Didnt touch anything else in the tune.
On The Tree
Joined: Dec 2018
Posts: 105
Likes: 12
From: Iowa
Are you getting any active codes? It’s possible the tuner messed something up without knowing it. If you feel confident in your ability with a laptop buy hp or efi live and take a stab at it. It kind of sounds like he didn’t actually get dod disabled. If you go as far as you have with the full delete there are codes that need to be shut off for the solenoids that control the flow of oil to the dod lifters. If you had codes pulled that might get you closer to figuring it out. Good luck
Last edited by andy burdess; Dec 28, 2018 at 10:49 PM.
So based on what you said, I am wondering if it is the lock up in the converter. I wonder if they changed how the lock up % is set. Since you said it stops if you tap the brakes, that is why I am thinking this direction. I have mine basically setup like a on/off switch. When my converter locks up, it feels like another gear, but the factory "slips" it on. Maybe the guy who did the dod delete, changed the % of slip, and now it feels jerky?
May very well be a bad coil pack though. Sometimes it will not show a code. Just had a friend who thought his had a bad transmission, he wouldn't bring it over to hook up my HPT, and took it to Aamco. They threw their scanner on it, and told him cyl #5 was bad. We threw some old 1999 D585 coils I had on it, and it was good. He did not have any codes, and I believe his was also a 2010, or maybe a 2011 I can't remember.
May very well be a bad coil pack though. Sometimes it will not show a code. Just had a friend who thought his had a bad transmission, he wouldn't bring it over to hook up my HPT, and took it to Aamco. They threw their scanner on it, and told him cyl #5 was bad. We threw some old 1999 D585 coils I had on it, and it was good. He did not have any codes, and I believe his was also a 2010, or maybe a 2011 I can't remember.