lstony

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?

G Atsma

Deleting DOD is not just a matter of tuning. You also replace the DOD lifters, lifter trays, pushrods, and cam. THEN DOD is deleted.

lstony

I did? Is my post not showing up? Used the texas speed kit.

G Atsma

Sorry. Mind-fart! Somehow missed the parts part! LOL You're good that way! Must be a tune issue. Sorry for the mixup!

lstony

No problem at all. Think I should tune myself?

tech@WS6store

iTrader: (2)

Tuning it yourself requires consideration knowledge there.
I seems like a misfire issue for most of it which is common in a vehicle that isnt fully tuned. what cam did you use?

lstony

Stoke 3 bolt 5.3 cam

lstony

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.

lstony

I'm curious if I'll run into any issues tuning behind someone else.

lstony

tech@WS6store

iTrader: (2)

They dont offer tune Support.
You also likely wont find alot lf free Support.
Which 5.3l cam? did you keep the factory 5.3l dod cam? or went to a 5.3l lm7 cam?

lstony

It's the cam with the kit from texas speed and performance. There is a dod delete kit on their website. Soooo just buy the hp tuners?

brandon6.0

iTrader: (32)

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.

andy burdess

lstony

You guys are awesome. I'll get back to you after I pull the codes and do some more research

rpturbo

iTrader: (47)

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.