Thank you for all the informative videos you post. Despite viewing your videos, I went off and purchased a 2020 GMC Canyon SLE Elevation Edition Crew Cab 2wd V6 with an automatic 8 speed transmission Pickup truck, brand new and it now has 6,xxx miles driving in Southern California. I wanted to go with a Tundra or Tacoma, but those were $15,000.00 to $20,000.00 more at the time for the same specifications. I changed the engine oil with the dealer once because it was free. Now, I change the oil myself with Mobile1 5W-30 advanced full synthetic oil making sure the O ring and oil drain plug gaskets are also replaced. Since I don't drive the car often I am probably going to end up doing the oil changes once every 8-12 months. I plan on changing the transmission oil every 5 years even if the mileage won't be that high. The question I have with my vehicle is the Active Fuel management System or the Dynamic Fuel management System. I know you have mentioned in the past that hooking up any device in the OBDII port is bad for your car but so is the AFM/DYM. I don't think I saw anything in the forum about this particular device and wanted to know if you have any thoughts or recommendations about using this OBDII device that disables the AFM/DFM from Range Technology ( https://www.rangetechnology.com/products/afm-dfm_disabler/parts/RA003G#). The cost of this device is more economical than getting the ECU re-tuned but if you don't it's a good idea, I would rather not install this device. Thank you in advance for your expertise.
No I'd never buy a GM product in the first place but if I had one I definitely would disable that stuff
Thank you for your feedback!
A yes from me, too. Not an enthusiastic yes because I’m never a fan of trying to outsmart the engineers who designed and tested the engine. But yes.
That particular unit (Range) is probably best of breed. The advantage is that it does not void your warranty the way reprogramming the ECU would. (And just the same, dont let the dealer know you’re running one.). Never let anyone touch the ECU unless you are 100% sure they know what they’re doing.
I also agree with good transmission maintenance; the 8-speed transmission is the biggest Achilles heel of the Colorados. Look through the Colorado/Canyon forums to see the latest on the torque converter stuff.
Yes, I wanted to avoid anyone touching the ECU. If the 6 speed automatics were available I would have made that choice but it was not an option. Thank you for your feedback.