My 2016 Sierra 2500HD has 176,000 miles on it already and recently started eating parts. The latest part to fail was the reductant tank heater (DEF Heater). Upon cold start the check engine light came on with code P21DD. After a little reading I learned that this can result in “Limp Mode”. I was in the middle of nowhere in Northern Wyoming. Not cool! I drove down to Denver and replaced it that week. I shot this video of the repair.....
I recently did a dod delete on my 2007 suburban. 6.0 200,000 miles. I thought the problem was the afm lifters being that there was a tick at highway speeds. I only had a tick at highway speeds. If I drove on the street I would never get the noise. As soon as I held a steady speed on the highway I would get what sounds like a lifter tick. The dod delete work was done by a Preformance shop. I do not think that dod was the problem. If I hold the throttle steady at 2000rpm while in park I can get the tick to come on. After I let the engine idle about 2-3 minutes the tick goes away. As soon as I hold the rpms back up it will come back and repeat the process. No loss of power while this is happening and no other sounds. Oil pressure is about 10-15 at idle and close to 40 while on highway. I would greatly appreciate any help.
I’m looking for any information on swapping gen3 5.3 With a gen4 controller (I want to use the 6L80e transmission.) I know the knock sensors are in the valley cover and it has the 24x reluctor and 1x cam sensor. I’ve heard it is possible to relocate the knock sensors to where they are on gen 4 block and swap reluctors and cams to work with the gen 4 controller, does anyone have any experience with actually doing so?
This is my first time posting in this forum!!
Just bought a DiabloSport Itune I3 Platinum Programmer.
I am looking for some decisive direction as well as suggestions on the best parameters for tuning my truck with the I3 Platinum.
Specs of Truck:
2014 Silverado Z71 LTZ 2WD Crew Cab
Rough Country leveling kit installed
33" x 12.5" x 22" Nitto Terra Grappler G2 A/T tires
5.3L Ecotec flex engine
K & N Cold Air Intake installed
Gentle 46k miles
I RUN 93 OCTANE IN THIS TRUCK
Being a 2 wheel drive (It Does have the Z71 package, Rancho shocks, etc...) Obviously it raked in the front.
First thing I did was put the K&N CAI on and it was like a rocket in Manual 5 gear mode, when I shifted through the gears myself.
After leveling kit and 33's with aggressive tread, it was complete garbage. No power, confused shift points, almost like missing. Just a hot mess.
So I bought the Intune I3 first, rather than switching to a 4.10 gear (which I may do later).
Already turned off AFM and that was immediately effective. Also, 15% throttle boost.
Can anyone suggest the best parameters to make this bad boy get up and GO!!??
I would like to know if there is a good idea on what ECM and TCM adjustments should be made to not only get that stock power back on 33's. But also get good fuel economy.
The standard Diablo Flex, Jammer and 91 tunes don't seem to help a whole lot. Still bogs down and takes forever to get through 1st and 2nd gear. Anybody know about these tuners on a 14 Silverado with 33's?!?!?!
I have an RX Speedworks catch can that i had installed on my 2016 Sierra. It attaches using the bolt for the brake fluid. Has the clean side separator that I used as well but not included in the pics but can provide more pics upon request. Will work on other vehicles. My price is obo shipped. TIA. https://www.rxspeedworks.com/product/gmc-sierra-oil-catch-can/
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