bsmall1564

Thank you to everyone that's had a part in this thread, I love your commitment, determination and dedication to get this issue solved. I just have a question to pose about my application. I have the 2020 GMC 3500 Denali, I pull both a 5th wheel and a bumper pull on occasion also. I figured I would pick everyone's brain as to how I could accomplish having the camera receptacle wired to the bed but keeping the bumper camera receptacle. Thanks in advance!

That's exactly what I experienced when I changed my oil & filter. So I thought just maybe the AcDelco Filter wasn't doing a very good job related to the pressure creating the noise. So the next oil & filter change I used an AmsOil filter and was a little quieter regarding the thumping/knocking noise upon start up, but was still present. So the following oil change I went back to using the AcDelco. I just figure its just a characteristic trait to the L5P Engine. Currently I have about 10K miles of towing with it and everything is great.

Bought my 2020 GMC 3500 Denali 4x4 in March of 2020: $80,210.00 MSRP $8000.00 Dealership Discount $3000.00 Rebate from GM Cash Program Plus $500.00 discount on Denali Package. Total Price: $69,210.00 Loaded Denali

I’ve installed a 56 gallon Titan fuel tank and Yakima fixed roof rack.

Congrats on your new 2020 Hoss. I feel the same as you regarding the noise I get from mine. I’ve put on about 6K miles towing without any issues, so I’m assuming if it were a major issue it would have shown up by now. Still love it!

It'll be interesting to see if this thumping sound gets louder or something breaks.

I just turned 600 miles on my GMC Sierra and started hearing that dreaded knocking sound. I can't believe this is a normal sound. Never heard anything like it on my 2008. Guess I'll have to wait and see, hopefully it won't get any louder.....

Well I guess the Allison transmission is a little more unforgiving when it comes to changes to the tire size.

I know this topic has been discussed in lengths in the past but here is the latest as of May/2014, at least from my prospective, and knowledge. I finally replaced my 245/75R16’s with 265/70R-17’s, which through off my shifting times with the Allison transmission, and the spedo no surprise there. I read post after post after post about having the dealer re-flash the ECM/Computer on the truck and it will recalibrate things to match the 17’s. I heard everything from its not necessary to dealer won’t do it, to the re-flash only resets the Speedo and DIC (drivers information center) and not the transmission shifting points. Fast forward too today, my dealer had to call GM to verify that my size tires was in their data base to send the program to have the truck re-flashed. It turns out GM recognized my size tires in their data and sent the program to the dealer/technician, which was downloaded to my truck. Now if my new tire size wasn’t in their data base, then the dealer wouldn’t have been able to update my truck. It turns out that the re-flashing does in fact re-set the transmission shifting points back to the speeds that it use to shift. It also re-sets the DIC to match the new tire size, and in addition, the re-flash of the ECM also will update any updates that GM has generated over the years, so now that’s up to date now.

If he can do this for a semi-reasonable price, I'll be a buyer in quantity... Walt I passed on your offer to him. Ok Walt he said to pass this info onto you: GMP Parts Company 111 Quaking Aspen Way Etna, Wyoming 83118 307-883-7500 Phone 307-883-7501 FAX [email protected]

If he can do this for a semi-reasonable price, I'll be a buyer in quantity... Walt I passed on your offer to him.

I am sorry I don't have the any numbers for the terminal connector that I received. I cant believe the plastic connector plug is $26.00. Let me see if my friend would want to make up some harness's and I will let you know what he has to say.

Well I received my wiring harness for the camera today that my friend made up for me that will plug direclty into the connector block inside the cab. Here are a couple pics: Uploaded with ImageShack.us

Thanks Jeff, you have been a lot of help.

Ok thanks so much. So you just increased the wire size from the connector near the camera end to the connector block in the cab where it plugs into the power source....