Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > Trailer Towing and Tow Vehicles Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 01-25-2013, 10:45 AM   #43
Junior Member
 
Join Date: Dec 2012
Posts: 26
I think you may be expecting too much from your diesel. I also have a 2003 GMC with duramax. 176,000 miles. No Problems. I've read all the posts. Without knowing what grades your going up. Very hard to tell if your having power problems. Depending on the grade and my towing experience with my rig, I would say your rig may be doing just fine. Not uncommon to loose 10-15 mph on my rig when I tow. If you are still in doubt, I would either get it dynoed or maybe have it chipped. Sounds like it runs fine though. 13,000 is a lot of weight. That's going to slow you down more than what you think. Good luck.
__________________

__________________
bginpa is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 01-25-2013, 07:47 PM   #44
Senior Member
 
Join Date: Apr 2012
Posts: 327
If you had a real problem, I would think the dealer would have found it. Is your truck chipped or are you running stock? I would recommend shifting into manual and downshifting when the RPMs drop below 1500. Like many have said, you are towing a pretty heavy load.
__________________

__________________
fvstringpicker is offline   Reply With Quote
Old 01-25-2013, 08:51 PM   #45
Senior Member
 
booger's Avatar
 
Coastal Campers
Carolina Campers
Join Date: Feb 2012
Location: Florence, SC
Posts: 150
Adding a lift pump can help the CP3, look into Airdog lift pumps, I had one on my 2005 GMC 2500HD with the Duramax. A cheaper thing to try first would be shim the FPRV, fuel pressure relief valve. dieselplace.com and duramax forum are two good forums to learn from about your LB7.
Having owned a Chevy, GMC, Dodge, and now a Ford I can safely say that they all have there shares of good and bad.
__________________
John & Tonya
'07 F350 DRW CC Lariat 4X4 (Tow Boss Package)
'08 Carriage Cameo 37RE3
booger is offline   Reply With Quote
Old 01-25-2013, 11:01 PM   #46
CD
Senior Member
 
Join Date: Sep 2002
Location: Kingston, Wa. USA
Posts: 1,221
Quote:
Originally Posted by gtmatt View Post
The truck has stock tires as far as I know, though I don't know what size originally came on it -- it's not jacked up or anything. I do not have a pyrometer. The engine is an LB7, but it was replaced (entirely) a few years ago.

I have not weighed the trailer yet, but it didn't have a whole lot in it as I was not towing it to use it for anything at the time. So I just took the dry weight and added ~1200 or so lbs. to adjust for the stuff I know the previous owner added, some cargo, and some water weight in the tanks. I do plan on weighing it soon as I'm going to start actually using it.

I did not use cruise control as I didn't know if I should while towing. But it sounds like that is fine. It might help even out my speeds, I suppose.

I do not know the "normal" RPMs. I will pay attention to that next time I'm on the highway. I did try using it without tow/haul mode briefly and that hill performance seemed worse.

Tow capacity is 14700 for the fifth wheel. I think the rear axle ratio is 3.73. I do not know the toque and horsepower ratings.

Sounds like replacing the fuel filter should be on the list. The air intake is an aFe aftermarket setup, and I know it is dirty and needs cleaning. I'll try those two things and weigh the trailer once it's loaded and go from there, I guess.

Thanks for the input so far.
If you have a 373 rear end you don't have as good pulling power.
__________________
Cliff

'01 3500 Ram QC HO 6sp. BD Exhaust Brake
CD is offline   Reply With Quote
Old 01-25-2013, 11:46 PM   #47
Moderator Emeritus
 
Vette Racer's Avatar


 
Oklahoma Boomers Club
Join Date: Apr 2002
Location: Sand Springs, Oklahoma
Posts: 2,823
I pulled 15,500 with a 2002 Chevy truck and stock it would downshift on every hill or grade but in 4th it would accelerate back up to cruise speed setting. Got irritating so I put an edge products box on it, solved that problem.

Your weight should not be causing the problems you are claiming so something may be wrong. I didn't notice if you have weighed the rig and all that, if your real weight is what you say then you have a problem, if you are pulling more weight then it may be what it is.
__________________
Tom
KE5NCP
2016 Silver Ram 3500 CC Dually, 2011 HitchHiker DA 349 RSB, 2014 Wrangler unlimited Rubicon
Vette Racer is offline   Reply With Quote
Old 01-25-2013, 11:55 PM   #48
Moderator Emeritus
 
Vette Racer's Avatar


 
Oklahoma Boomers Club
Join Date: Apr 2002
Location: Sand Springs, Oklahoma
Posts: 2,823
"If you have a 3:73 rear end you don't have as good pulling power."


CD... all Chevy trucks with diesel have 3:73 rears!
__________________
Tom
KE5NCP
2016 Silver Ram 3500 CC Dually, 2011 HitchHiker DA 349 RSB, 2014 Wrangler unlimited Rubicon
Vette Racer is offline   Reply With Quote
Old 01-26-2013, 07:28 AM   #49
Senior Member
 
onechaddude's Avatar
 
Join Date: Jul 2011
Posts: 1,543
My brother has a 2009 gmc 2500 with duramax. When he pulled a 24' enclosed trailer with atv's in it almost every hill we climbed the truck came out if 6 th gear and back to 5th to climb it. I have always driven dodge cummins trucks and needless to say i was not impressed. Once the truxk did change to 5th gear it would hold speed fine. I am thinking your older duramax with less torque than his 09 that maybe fine you just have alot of weight and thats as fast as it could go.
Chad
__________________
onechaddude is offline   Reply With Quote
Old 01-26-2013, 03:21 PM   #50
Senior Member
 
Abnmarine's Avatar
 
Join Date: Sep 2009
Location: Colorado
Posts: 702
We pulled out 14k trailer all through Tennesse to Missouri and could easily maintain 65 mph through the mountains. Of course my tuner provided me 1200 ft lbs of tq and 14 mpg.

I will say that Dodge was such a nice TV and the exhaust brake helped tremendously.
__________________
2016 Dodge Ram 2500 Laramie 6.7 CTD, 45 gallon gravity tank, Cooper A/T3's, Bilstiens
2012 Arctic Fox 22H 300 watt Solar, Morningstar TS-45, 460 AH batteries, Xantrax 1000 watt PSW
Abnmarine is offline   Reply With Quote
Old 02-05-2013, 03:34 PM   #51
Junior Member
 
Join Date: Jan 2013
Posts: 8
Well, I fixed the problem. Traded the old truck on a newer one. Replaced the 2003 Sierra with 256k miles and a 300 HP engine with a 2006 Silverado with 105k miles and a 360 HP engine.
__________________
gtmatt is offline   Reply With Quote
Old 02-05-2013, 07:30 PM   #52
Junior Member
 
MPVman's Avatar
 
Join Date: Jan 2013
Location: Race City
Posts: 17
I towed with a 03 Dmax and was underwelmed to say the least, My current TV is a 98 6.5 TD Dually with a few adjustments if you get my drift, It will out tow and outrun a older Dmax or Powerstroke
__________________
2009 Sabre Palomino "Sissy"
1998 Chevrolet K3500 6.5 Diesel "Brutus"
MPVman is offline   Reply With Quote
Old 02-05-2013, 08:32 PM   #53
Senior Member
 
Arch Hoagland's Avatar
 
Monaco Owners Club
Workhorse Chassis Owner
Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 5,908
Quote:
Originally Posted by gtmatt View Post
Well, I fixed the problem. Traded the old truck on a newer one. Replaced the 2003 Sierra with 256k miles and a 300 HP engine with a 2006 Silverado with 105k miles and a 360 HP engine.

I like your style.

If you need more power buy a more powerful engine.

Problem solved.
__________________
2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS
Arch Hoagland is offline   Reply With Quote
Old 02-07-2013, 12:29 AM   #54
Senior Member
 
caissiel's Avatar
 
Join Date: Oct 2011
Posts: 1,312
Quote:
Originally Posted by Arch Hoagland View Post

I like your style.

If you need more power buy a more powerful engine.

Problem solved.
I bought a $325 programer 6 years ago. Gained up to 125hp.
__________________

__________________
Barbara and Laurent, Hartland Big Country 3500RL. 39 ft long and 15500 GVW.
2005 Ford F250 SD, XL F250 4x4, Long Box, 6.0L Diesel, 6 Speed Stick, Hypertech Max Energy for Fuel mileage of 21 MPusG empty, 12.6 MPusG pulling the BC. ScangaugeII for display..
caissiel is offline   Reply With Quote
Reply

Tags
diesel



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:04 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.