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

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

wsteele

Full Access Member
Joined
Dec 26, 2020
Posts
1,731
Reaction score
2,355
What’s missing in this photo? This isView attachment 346209 the FSCM or FPCM that runs the fuel pump. Located under the floor just forward of the fuel tank. My shop manual says there’s a cover over the module, but mine is naked.

If anyone’s familiar with it or may care to post up a picture of theirs?

I am trying to decide of it’s anything worth seeking out to replace if it provides any real protection. Or is it just a flimsy cosmetic cover? Or maybe it was never there? Thanks for any feedback!
I have probably watched 10 different YouTube clips on the FPCM (FSCM) in our trucks and never saw a cover over one. They were all sitting proud, waiting to get hit square from a bouncing rock... :)
 

Bill 1960

Testing the Limits
Joined
Dec 17, 2020
Posts
1,480
Reaction score
2,866
There wasn't anything on the one on my 08 Silverado but that truck is far from stock. maybe someone else has messed with theirs.
From my research the pickups they locate it above the spare, where it’s relatively protected. And then for some reason on the Tahoe platform it’s on the cross member under the driver. Facing forward to catch all the gravel and crap spraying from the front tire.
 

Bill 1960

Testing the Limits
Joined
Dec 17, 2020
Posts
1,480
Reaction score
2,866
I have probably watched 10 different YouTube clips on the FPCM (FSCM) in our trucks and never saw a cover over one. They were all sitting proud, waiting to get hit square from a bouncing rock... :)
My fear precisely. In the lower part of my photo you can see the cross member it’s mounted to is bent. That was before I owned it. I’ll be making a skid plate I think.
 

wsteele

Full Access Member
Joined
Dec 26, 2020
Posts
1,731
Reaction score
2,355
From my research the pickups they locate it above the spare, where it’s relatively protected. And then for some reason on the Tahoe platform it’s on the cross member under the driver. Facing forward to catch all the gravel and crap spraying from the front tire.
Yep. When I was doing my search for the FPCM (aka FSCM, FPDM, they call them different things so people won’t get confused ;)) in my Yukon, I searched high and low (hence all the YouTube clips on the module). Once it became certain they were on that cross member under the drivers seat in the Tahoe/Yukons, that was when I realized I got gypped. The 2007 MY used the 2006 fuel pressure management design, with a fixed regulator in the fuel pump assembly in the tank. :(

But yeah, at least I don’t have an electronics bit in the line of fire. :)
 
Joined
Apr 11, 2018
Posts
7,124
Reaction score
14,375
Location
St. Louis
I believe you that it worked for you. I cannot get sound through ours when using the RCA AUX for the life of me tho. I wish I knew why.
Screenshot_20210729-180204_Drive.jpg

Screenshot_20210729-180532_Drive.jpg

Further reading from this section talks about the aux connectors

Screenshot_20210729-180633_Drive.jpg

Screenshot_20210729-180755_Drive.jpg
 

George B

¯\_(ツ)_/¯
Joined
Feb 5, 2020
Posts
7,882
Reaction score
18,994
Location
Oconomowoc, Wisconsin 53066
Last edited:

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
30,549
Reaction score
48,000
Location
Stockton, Ca.
It is odd and I tried about everything I could think of. The sound works becauseI can source it with the head unit and play it over the speakers in the truck but I can’t get it to go over the factory wireless headphones. I can hear sound with the DVD we have in.
might want to check the audio cable from the game console on a tv to verify it has sound?, nothing muted?
 

Geotrash

Dave
Supporting Member
Joined
Feb 16, 2018
Posts
7,845
Reaction score
20,403
Location
Richmond, VA
View attachment 346210

View attachment 346211

Further reading from this section talks about the aux connectors

View attachment 346212

View attachment 346213
This is fabulous! I had no idea… And just in time for our big cross country trip.

Update: I’ve had all of the hardware to make it work for a few years, but did not know the headphone channel trick. I just tried it out, and it works beautifully. I connected a lightning to HDMI adapter to my iphone, to the HDMI converter and into the AV jacks. We now have YouTube on the go! Thank you!!
 
Last edited:

Geotrash

Dave
Supporting Member
Joined
Feb 16, 2018
Posts
7,845
Reaction score
20,403
Location
Richmond, VA
Braved I-95 up to DC today in our '07 to spend the weekend with my mother-in-law. She's awesome, and her cooking is so good she could open a restaurant. Heaven.

These trucks are the best thing I've ever experienced for traveling. Comfortable, plenty of power, easy to drive, great sound system, and safe. We took the '07 because the kids prefer the captain's chairs in the 2nd row for shorter trips. Averaged 16.5 mpg for the trip. Not bad because most of it was stop-and-go, and I had a few full-throttle pulls to get around passing lane squatters. It makes me miss the German autobahns where lane discipline is absolute. Also, turned over 215K on the way. Going to be time to do the front differential mount in the fall - a few clunks when downshifting reminded me that it's due. Motor mounts are OEM with less than 20K on them and they pass the throttle poke test, so the diff mount is next up.
 

the_tool_man

Full Access Member
Joined
Oct 15, 2018
Posts
837
Reaction score
1,994
Location
Upstate South Carolina
...These trucks are the best thing I've ever experienced for traveling. Comfortable, plenty of power, easy to drive, great sound system, and safe.
I couldn't agree more! My wife and I spent last weekend driving a rural highway in NC and VA for a 100-mile-long "road market"; basically yard sales and flea markets for 3 days. Comfortable, roomy, plenty of power, AWD made muddy areas drama-free, and plenty of room for all the crap we bought.
 

89Suburban

Bull in the china shop
Space X Supporting Member
Joined
Jan 10, 2013
Posts
17,840
Reaction score
50,836
Location
SE PA
Braved I-95 up to DC today in our '07 to spend the weekend with my mother-in-law. She's awesome, and her cooking is so good she could open a restaurant. Heaven.

These trucks are the best thing I've ever experienced for traveling. Comfortable, plenty of power, easy to drive, great sound system, and safe. We took the '07 because the kids prefer the captain's chairs in the 2nd row for shorter trips. Averaged 16.5 mpg for the trip. Not bad because most of it was stop-and-go, and I had a few full-throttle pulls to get around passing lane squatters. It makes me miss the German autobahns where lane discipline is absolute. Also, turned over 215K on the way. Going to be time to do the front differential mount in the fall - a few clunks when downshifting reminded me that it's due. Motor mounts are OEM with less than 20K on them and they pass the throttle poke test, so the diff mount is next up.
Whereabouts? Did you pass by me in SE PA? My brother trucks down to Richmond every night from Reading, Pa. Meets up with trucks from NC and swaps trailers.
 

Geotrash

Dave
Supporting Member
Joined
Feb 16, 2018
Posts
7,845
Reaction score
20,403
Location
Richmond, VA
Whereabouts? Did you pass by me in SE PA? My brother trucks down to Richmond every night from Reading, Pa. Meets up with trucks from NC and swaps trailers.
Your brother has a rough route! We live in Richmond and her mother lives in the Fairfax/Chantilly area. Got a sister in Malvern though!
 

89Suburban

Bull in the china shop
Space X Supporting Member
Joined
Jan 10, 2013
Posts
17,840
Reaction score
50,836
Location
SE PA
Your brother has a rough route! We live in Richmond and her mother lives in the Fairfax/Chantilly area. Got a sister in Malvern though!
Yes he does! All kinds of horror stories on his trips down the beltways that time of night! God bless him! Plus he lives in K of P so an hour just to Reading. Then drive all night. An hour back to K of P. LOTS of driving! Teamsters, very good money, no boss up his ass. Just gets a text and goes in and drives.

Tell your sister I love to eat at Tonino's! :happy107:
 

Geotrash

Dave
Supporting Member
Joined
Feb 16, 2018
Posts
7,845
Reaction score
20,403
Location
Richmond, VA
Yes he does! All kinds of horror stories on his trips down the beltways that time of night! God bless him! Plus he lives in K of P so an hour just to Reading. Then drive all night. An hour back to K of P. LOTS of driving! Teamsters, very good money, no boss up his ass. Just gets a text and goes in and drives.

Tell your sister I love to eat at Tonino's! :happy107:
I’ve eaten at Tonino’s! Delicious
 

Forum statistics

Threads
137,759
Posts
1,991,371
Members
102,745
Latest member
Buford bubba
Back
Top