Duramax Diesels Forum Truck of the Week
  #46  
Old 03-26-2018, 03:41 PM
DAVe3283's Avatar
DAVe3283 DAVe3283 is online now
Heavy & Slow



 
Join Date: Sep 2009
Location: Boise, ID, USA
Posts: 2,719

Default

Fuel temps do rise a bit as your tank gets lower, but nothing crazy. From all the miles I put on my truck towing, empty, etc. and seeing the fuel temps, I didn't even install a fuel cooler when I did my Duraburb. It sees almost identical temperatures to the truck despite no cooler.

There was a big thread a while back about fuel temps and mileage, and some people said they saw a difference with cooler fuel temps, but really just a bunch of theory and claims. I don't think anyone ever put in the work to prove it out. I suppose I could put a cooler on my Suburban and see if my MPG goes up, but that would take thousands of miles to get a good feel for it, and if I was too lazy to install one with the body off, I sure ain't installing one now
__________________

Reply With Quote
  #47  
Old 03-26-2018, 07:01 PM
Jacob tomlinson Jacob tomlinson is offline
Dmax
 
Join Date: Jul 2016
Location: Kentucky
Posts: 34
Default

Quote:
Originally Posted by Firefightkev View Post
Check the tcase for fluid and metal flakes. I kept hearing a noise that I couldn't figure out. It turned into a grinding noise that would increased on tc lockup. It didn't start leaking fluid till it came out the front drive shaft seal.
Mine leaks out the fron and back seal very little but it os still full
__________________
2002 GMC Sierra
LB7
Mbrp down pipe to 5” Mbrp straight pipe axle dump
Wicked wheel 2 compressor wheel
High flow intake horn
S&B air intake
6” lift
EFI live 5 selector switch
22x14’s with 35’s
Reply With Quote
  #48  
Old 03-27-2018, 12:26 PM
OregonDMAX's Avatar
OregonDMAX OregonDMAX is offline
NOT IN OREGON
 
Join Date: Apr 2013
Location: Goodyear, AZ
Posts: 3,571

Default

Quote:
Originally Posted by DAVe3283 View Post
Fuel temps do rise a bit as your tank gets lower, but nothing crazy. From all the miles I put on my truck towing, empty, etc. and seeing the fuel temps, I didn't even install a fuel cooler when I did my Duraburb. It sees almost identical temperatures to the truck despite no cooler.

There was a big thread a while back about fuel temps and mileage, and some people said they saw a difference with cooler fuel temps, but really just a bunch of theory and claims. I don't think anyone ever put in the work to prove it out. I suppose I could put a cooler on my Suburban and see if my MPG goes up, but that would take thousands of miles to get a good feel for it, and if I was too lazy to install one with the body off, I sure ain't installing one now
Mike proved a cooler does help immensely. Dunno where it was but someone posted that the inside of an LML tank had melted from hot fuel on a high hp truck, which ifcorse the LML doesn't come with a cooler. It's already been proven by scientists, engineers and racers that cooler fuel is more energy efficient in all aspects.
__________________
Sean
02 CCSB
Moonshine tunes, Mike L trans
Mike L secret squirrel converter
Exergy Sportsman, 4/6 drop, LML 20's/420's
Reply With Quote
  #49  
Old 03-27-2018, 12:46 PM
torqued2dmax's Avatar
torqued2dmax torqued2dmax is offline
Hotrodder
 
Join Date: Mar 2017
Location: Brookville, PA
Posts: 417
Default

Jacob , is your truck still running or did something let loose to tell you where the grinding noise was coming from , keep us up to date ! Someone here way have some good advice !
__________________
05 CC/LB DRW LLY Allison
AFE Blade Runner,AFE Momentum CAI,DHD Big Air intake Y pipe, DHD fuel block,DHD pcv reroute,MBRP 4 inch exhaust,DHD 3 inch downpipe,BD driver's side manifold,DHD pass side up pipe,DHD 3 inch intercooler hot&cold pipes, ATI damper,Empire pin kit by Big Foot on & off road shop, FASS fuel system,5/8 inch pickup, FASS fuel filter delete, EFI live,V2 & lap top , 5 position switch 250 hp big tune, shimmed fprv by Crank it up , built SunCoast Allison 1078 converter aftermarket trany mount by Limitless Diesel,ARP head studs,grade C gaskets,tig-welded water pump,T stats by Blackout performance,MA t case brace , Kriptonite motor mounts,MA pump rub kit,HD drive shaft 1480joints by Greensburg machine,BDS Recoil traction bars, PPE finned deep pan , Mike L trany cooler, PSC pump, 5100s, Sulastic Shackles, Curt com 2.5 hitch
Reply With Quote
  #50  
Old 04-01-2018, 04:48 AM
Jacob tomlinson Jacob tomlinson is offline
Dmax
 
Join Date: Jul 2016
Location: Kentucky
Posts: 34
Default

As of roght now i am still chasing this noise, im going to check the parking break and see if it came loose in the wheel?? My parking break barely holds so maybe thats it!
__________________
2002 GMC Sierra
LB7
Mbrp down pipe to 5” Mbrp straight pipe axle dump
Wicked wheel 2 compressor wheel
High flow intake horn
S&B air intake
6” lift
EFI live 5 selector switch
22x14’s with 35’s
Reply With Quote
  #51  
Old 04-02-2018, 06:28 AM
Dozerboy's Avatar
Dozerboy Dozerboy is offline
Hotrodder
 
Join Date: Jun 2009
Location: TX of course
Posts: 3,638

Default

Parking brakes ain’t very good in these trucks to start with, but worth a look.


Sent from my iPhone using Tapatalk
__________________

06 GMC 2500 CCSB SLT LBZ 4X4





These views expressed on this post are not my own, but rather randomly generated computer gibberish, and in no way should be used to judge the author's IQ or mental health.
Reply With Quote
  #52  
Old 04-02-2018, 11:11 AM
torqued2dmax's Avatar
torqued2dmax torqued2dmax is offline
Hotrodder
 
Join Date: Mar 2017
Location: Brookville, PA
Posts: 417
Default

Do you have a carrier bearing ? That is why I wanted to know if it is a long bed CC ! They are known to make noise upon light acceleration ! Did you check all the U joints ? Did you push straight up and down on T case output yoke ? Did you drain the $8 worth of T case fluid into your wifes clean white tupperware container , to let us know weather it is full of metal chunks ? You said the T case is full but leaks , so if thats the case the fluid is coming from the tranny seal which you can replace when you do the pump rub kit !
__________________
05 CC/LB DRW LLY Allison
AFE Blade Runner,AFE Momentum CAI,DHD Big Air intake Y pipe, DHD fuel block,DHD pcv reroute,MBRP 4 inch exhaust,DHD 3 inch downpipe,BD driver's side manifold,DHD pass side up pipe,DHD 3 inch intercooler hot&cold pipes, ATI damper,Empire pin kit by Big Foot on & off road shop, FASS fuel system,5/8 inch pickup, FASS fuel filter delete, EFI live,V2 & lap top , 5 position switch 250 hp big tune, shimmed fprv by Crank it up , built SunCoast Allison 1078 converter aftermarket trany mount by Limitless Diesel,ARP head studs,grade C gaskets,tig-welded water pump,T stats by Blackout performance,MA t case brace , Kriptonite motor mounts,MA pump rub kit,HD drive shaft 1480joints by Greensburg machine,BDS Recoil traction bars, PPE finned deep pan , Mike L trany cooler, PSC pump, 5100s, Sulastic Shackles, Curt com 2.5 hitch
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 09:47 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
vB.Sponsors