What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[StrkAliteN]

How would I know or find out if my 2007 Yukon has a factory tow package?

I am researching brake controllers and I guess this is needed info.

I know enough about towing a trailer to be dangerous.

I have my VIN 1gkfk13047j283176

of course I have a tow hitch and wiring harness plug on the bumper.

What is a tow package ? and do I or do I not have it already on my Yukon ??

thanks in advance.

There is a trailer icon and button on the end of the drive selector arm on the steering console. When the button at the end is depressed a trailer icon appears on the instrument panel. I honestly have no clue what that feature even is or does. Have never towed anything with this rig. I am installing a brake controller and need this info as I am searching on etrailer for controller info - tutorials.

thanks in advance

 

[RooTBeeRthe1st]

How would I know or find out if my 2007 Yukon has a factory tow package?

I am researching brake controllers and I guess this is needed info.

I know enough about towing a trailer to be dangerous.

I have my VIN 1gkfk13047j283176

of course I have a tow hitch and wiring harness plug on the bumper.

What is a tow package ? and do I or do I not have it already on my Yukon ??

thanks in advance.

There is a trailer icon and button on the end of the drive selector arm on the steering console. When the button at the end is depressed a trailer icon appears on the instrument panel. I honestly have no clue what that feature even is or does. Have never towed anything with this rig. I am installing a brake controller and need this info as I am searching on etrailer for controller info - tutorials.

thanks in advance

RPO codes

Z82 - TRAILERING EQUIPMENT
K5L - HEAVY DUTY TRAILERING PACKAGE

Thats the tow/haul button.
just a different trans tune. holds the trans in gear longer, lets the engine rev higher even with light throttle, keeps it out of 6th until like 80mph.

 

[Sparksalot]

Didn’t know little green men were into bond-age.

You haven’t seen the ET p o r n on Reddit?

 

[Tonyrodz]

Didn’t know little green men were into bond-age.

Don't judge

 

[StrkAliteN]

RPO codes

Z82 - TRAILERING EQUIPMENT
K5L - HEAVY DUTY TRAILERING PACKAGE

Thats the tow/haul button.
just a different trans tune. holds the trans in gear longer, lets the engine rev higher even with light throttle, keeps it out of 6th until like 80mph.

Yea neither of those 2 codes are listed on the glove box dealio sticker. So I would think it is safe to assume my Yukon does NOT have a factory tow package.

So that stated, chances are slim it has an oversized xmission cooler or anything similar I am guessing.

 

[RooTBeeRthe1st]

Yea neither of those 2 codes are listed on the glove box dealio sticker. So I would think it is safe to assume my Yukon does NOT have a factory tow package.

So that stated, chances are slim it has an oversized xmission cooler or anything similar I am guessing.

VR4 - WEIGHT DISTRIB. PLATFORM HITCH
K5L - HEAVY DUTY TRAILERING PACKAGE: * ENGINE OIL COOLING SYSTEM * TRANSMISSION OIL COOLER
KC4 - ENGINE OIL COOLING SYSTEM
KNP - HD AUX TRANS. COOLING SYSTEM

Don't worry about that trans cooler... The auxiliary OEM trans cooler is a joke.
If you're worried about trans temps, get one of the aftermarket units and put it in line in the system.
And if you're really worried about heat, definitely upgrade the radiator.

 

[StrkAliteN]

VR4 - WEIGHT DISTRIB. PLATFORM HITCH
K5L - HEAVY DUTY TRAILERING PACKAGE: * ENGINE OIL COOLING SYSTEM * TRANSMISSION OIL COOLER
KC4 - ENGINE OIL COOLING SYSTEM
KNP - HD AUX TRANS. COOLING SYSTEM

Don't worry about that trans cooler... The auxiliary OEM trans cooler is a joke.
If you're worried about trans temps, get one of the aftermarket units and put it in line in the system.
And if you're really worried about heat, definitely upgrade the radiator.

VR4 is the only code on my sheet of the 4 codes you listed
Thanks for the help

 

[justchecking]

They offered me some money back to compensate for my troubles. In the end I was happy. The seat still lacks the power to raise my 235 lbs but I need it all the way down and it only would need to go up if my wife drives. She has been instructed to press the memory button, wait for the seat to move and then get in. I think part of it is due to my not getting the large gear on perfectly true.

Same here, I need it all the way down. Anybody else will have to raise it up standing outside. Now my gear wouldn't quite slide on so I had to file the shaft a little bit. After the JB weld set up i spun the shaft and the gear was straight. When I popped the gear into the housing there was a bit for and aft play so not too tight. Then when I put in the worm gear and popped the top of the housing on it seemed to go on with no issues. Had I known I could have checked a couple more things, maybe some warm day I will. I will also contact Gruven.

 

[drastevenson]

So over the weekend, I installed my lLED head light bulbs, LED Fog light bulbs, full length 3rd brake light, 4th gen style tail lights, front sway bar end links and front brakes. I'll be working on the rear on e the weather gets a bit better here in Chicago

Can you link where you got the Tail lights?

 

[iamdub]

I pulled this parking brake switch out and vacuumed up all nice and clean under there. It's a 7mm socket for the bolt. This style switch you can pop out the brass contacts and clean them up. There was some kind of a greasy varnish on them. I used my bench grinder wire wheel on slow speed and light pressure to clean the contacts up. Works like a charm now. Didn't get any after pics, temps are dropping here and I was in a rush. There is a locating pin sticking out of the back of the switch to help clock it into the correct position when reinstalling.






View attachment 366535

I've fixed those by holding the release handle so the pedal didn't lock down and repeatedly cycling the pedal down and up. After a few cycles, you'll see the light working again.

 

[iamdub]

Didn’t know little green men were into bond-age.

According to the stories them folks in Arkansas tell, aliens are the doms and they're certainly into butt play.

#peggedbyALF

 

[swathdiver]

Changed the coolant reservoir in the Sierra today with my daughter. Well, I fetched the tools and she did the work! We were supposed to then flush the coolant in the Yukon but it was a great beach day didn't you know? LOL

 

[Sparksalot]

Changed the oil and filter in both the twins. They’re almost always out of sync, but not this time. Also rotated the tires on theothertwin. Just 4 since they’re Eagle RSAs and the spare is one of the Firestone Pursuit tires.

 

[swathdiver]

How would I know or find out if my 2007 Yukon has a factory tow package?

I am researching brake controllers and I guess this is needed info.

I know enough about towing a trailer to be dangerous.

I have my VIN 1gkfk13047j283176

of course I have a tow hitch and wiring harness plug on the bumper.

What is a tow package ? and do I or do I not have it already on my Yukon ??

thanks in advance.

There is a trailer icon and button on the end of the drive selector arm on the steering console. When the button at the end is depressed a trailer icon appears on the instrument panel. I honestly have no clue what that feature even is or does. Have never towed anything with this rig. I am installing a brake controller and need this info as I am searching on etrailer for controller info - tutorials.

thanks in advance

Your tow rating is 6,700 pounds as is (GCWR 13,000), I reckon that you have 3.73 gears, RPO GT4. GT5 is 4.10 gears and tow rating would be 7,700 pounds (14,000 GCWR). If memory serves, the 4.10s would include KC4 and KNP. Curiously, the 2007 Brochure lists higher tow ratings (7200/8200) than the 2007 Electronic Owner's Manual. Data comes from the Electronic Owner's Manual.

 

[RooTBeeRthe1st]

I don't feel like looking up my build sheet again, but I know mine has the 3.42s and 7300 lb rating

 

[StrkAliteN]

RPO codes

Z82 - TRAILERING EQUIPMENT
K5L - HEAVY DUTY TRAILERING PACKAGE

Thats the tow/haul button.
just a different trans tune. holds the trans in gear longer, lets the engine rev higher even with light throttle, keeps it out of 6th until like 80mph.

I can see how that selected option would enhance driving / towing around town.

Once I am on open freeway driving hundreds of miles on flat interstate, would it be a good or bad idea to turn off the trailering button and just use normal transmission for greater fuel economy ?

 

[Geotrash]

I can see how that selected option would enhance driving / towing around town.

Once I am on open freeway driving hundreds of miles on flat interstate, would it be a good or bad idea to turn off the trailering button and just use normal transmission for greater fuel economy ?

No. It will keep hunting in/out of 4-5-6. I run it in tow/haul mode when towing our camper and limit it to 5th. Makes no difference in fuel economy but it’s a lot easier on the transmission.

 

[justchecking]

Same here, I need it all the way down. Anybody else will have to raise it up standing outside. Now my gear wouldn't quite slide on so I had to file the shaft a little bit. After the JB weld set up i spun the shaft and the gear was straight. When I popped the gear into the housing there was a bit for and aft play so not too tight. Then when I put in the worm gear and popped the top of the housing on it seemed to go on with no issues. Had I known I could have checked a couple more things, maybe some warm day I will. I will also contact Gruven.

The difference in additional heat (I replaced cushion and cover) coming out of that seat now is remarkable. I wish I had the old cushion to tear apart but the trash man already took it.

 

[Doubeleive]

drove from here to Disneyland which is about 370 miles at around 80mph and then back home another 370 at around 85mph
left with a 11.9 mpg and ended up with a 12.5 mpg upon return. it's difficult to get anything better out of it, it is what it is

 

[George B]

drove from here to Disneyland which is about 370 miles at around 80mph and then back home another 370 at around 85mph
left with a 11.9 mpg and ended up with a 12.5 mpg upon return. it's difficult to get anything better out of it, it is what it is

Best I can do on a drive like that is 15-16.