truck acted really odd coming home - Dodge Diesel

kerry.king · 07-04-2012, 11:01 AM

I was in texas working for over 2 months, didnt drive my truck much down, there but when i did i noticed fuel mileage was awful. saw on the diesel pumps that it was a 15% biodiesel blend. could that be affecting my mpg?
also, when going into 6th gear on some hills, un-loaded, the truck would bog down, and take forever to spool up. i havent seen any smoke at all though.
i'm wondering if my fuel filter needs changed? truck has 42k on it now. i dont know if it was changed prior to my purchase of the truck.
could the fuel filter be gummed up with the biodiesel blend? be the cause of poor fuel mileage and the slow spool up? i'm not getting any codes.
had some codes showing a few weeks ago, but i cleared them, unloaded the smarty and reinstalled it. haven't head an issue since.
any advice will be greatly appreciated.
thanks
kerry

Blake Clark · 07-05-2012, 11:47 AM

The very first thing I would do is change the fuel filter and then see if that makes a difference. Id better even money it was never changed by the prior owner.

JP-4.5 · 07-05-2012, 01:31 PM

I agree to check filter..
Get some gauges for this truck would be very helpful for your trouble shooting when something does go wrong.. All of the following help greatly in determining what may be an iussue..

Fuel pressure
EGT
Transmission temp
boost

Totallyrad · 07-05-2012, 02:03 PM

Change the filter. Remember that when you run bio or regular fuel that has a bio blend it will give the fuel system a little extra cleaning. If it still runs bad check for codes.

kerry.king · 07-06-2012, 11:53 AM

going to do the fuel filter today. I'll cut it apart and take a look. Let you guys know. If it's real nasty i'll post a couple pics.
As for gauges, they're on the list. Boost & Pyrometer. Dont think I need trans temp since I have a manual. Is fuel psi a mandatory one on the 67? I had one on my 01 5.9, didn't think I needed 1 on this truck since i'm not gonna hot rod it anymore than it is.

Dodgetracker · 07-07-2012, 02:13 PM

I was also in Tx for about 1 month, running that 15% bio fuel. My truck seems to like it, and gets decent milage with it.

07-05-2012, 11:47 AM	#2
Blake Clark Administrator / Severe Concussion Aficionado Join Date: Jul 2008 Location: Home: Kaplan, LA Pipelining From: Amarillo to Weatherford Posts: 5,455 My Photo Gallery My Classified Ads	The very first thing I would do is change the fuel filter and then see if that makes a difference. Id better even money it was never changed by the prior owner. __________________ 2011 3500 4x4 Dually G56 Laramie BW S467/83 .90 on a 2nd Gen Stainless Diesel Manifold (Source Swap Kit) - H&S - DDP 90 Nozzles - Head decked and O-Ringed - ARP2000's - GDP Intake - AirDog165 - ISSPRO - SouthBend DD3250 OMG! Hp and HOLY CRAP! TqAll runs made on a certified butt dyno 1990 W250 NV4500Whole Lotta Stock bclark@dieseltruckresource.com

07-05-2012, 01:31 PM	#3
JP-4.5 Registered User Join Date: Aug 2004 Location: Mass. Posts: 928 My Photo Gallery My Classified Ads	I agree to check filter.. Get some gauges for this truck would be very helpful for your trouble shooting when something does go wrong.. All of the following help greatly in determining what may be an iussue.. Fuel pressure EGT Transmission temp boost __________________ 2004.5 SRW 2500 Graphite 4x4 SLT CTD QCLB 48RE 3.73LS, Autometer guages, Nasta Stainless Steps, Nitto DuraGrappler, Flares, Renegade 892 17x9, Bilstein, Diamondback powdercoated black, TST R49, Smarty SSR/UDC, AirDog165, GDP 2 micron kit, 5" exhaust , Kilby tray/grill guard , Billet DTT , stock/S475, SolidAxle free-spin hubs

07-05-2012, 02:03 PM	#4
Totallyrad Administrator / Free Time Specialist Join Date: Nov 2005 Location: Birmingham, Alabama Posts: 7,425 My Photo Gallery My Classified Ads	Change the filter. Remember that when you run bio or regular fuel that has a bio blend it will give the fuel system a little extra cleaning. If it still runs bad check for codes. __________________ Rick trad@dieseltruckresource.com________________________________________ 04.5 3500 Dually, Regular cab, 6 Spd/3.73's, Just black with a little chrome, TAG, Centramatics, B&W Turnover Ball, Brakesmart, Line-X, Weatherguard Box, UWA 100 Gal. transfer tank, Dodge heavy duty mud flaps Sheeple (a portmanteau of "sheep" and "people") is a term of disparagement in which people are likened to sheep, a herd animal. The term is used to describe those who voluntarily acquiesce to a suggestion without critical analysis or research. They undermine their own individuality and may willingly give up their rights.

07-07-2012, 02:13 PM	#6
Dodgetracker Registered User Join Date: Dec 2007 Location: Arizona Posts: 120 My Photo Gallery My Classified Ads	I was also in Tx for about 1 month, running that 15% bio fuel. My truck seems to like it, and gets decent milage with it. __________________ 2008 2500 HD QC Larime 4x4 Black Crystal Pearl 6.7L 68RFE 4:10 gears, AFE Stage II CAI. Tires: Mickey Thompson MTZ 275/70/R18 on Dick Cepek DCII wheels . Reese 15K 5th Wheel Hitch. Towing 2007 Heartland Cyclone 3795 ToyHauler 5th Wheel United States Army, Retired

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07-06-2012, 11:53 AM	#5
kerry.king Registered User Join Date: Jan 2010 Location: Grand Junction, Co Posts: 444 My Photo Gallery My Classified Ads	going to do the fuel filter today. I'll cut it apart and take a look. Let you guys know. If it's real nasty i'll post a couple pics. As for gauges, they're on the list. Boost & Pyrometer. Dont think I need trans temp since I have a manual. Is fuel psi a mandatory one on the 67? I had one on my 01 5.9, didn't think I needed 1 on this truck since i'm not gonna hot rod it anymore than it is.