Have a back pressure test done on your CAT. You should run under 3psi. A muffler shop can do this for you and is usually free of charge.
That is a new suggestion, I will try that.
Do a CIA and K&N or HI Flow dry filter.
Do you mean CAI? if so then noted and trying to save up any minimal cost reasonable upgrades until I can get the full K&N intake setup?
Transmission filter/fluid might need changed. Filter/fluid should have been changed with the trans rebuild in JAN08 I would like to think that they didnt use the same filter and fluid that was a causal factor in the transmission rebuild in the first place. You may be on to something it has been 25K since rebuild so that is a good possibility.
Does it run hotter than usual?
NO, was running slightly hotter when water pump was failing and leaking DexCool but back to normal temps with water pump R/R.
Also, Never trust the overhead unit! Always check your actual numbers at the pump.
I use the O/H as a reference but still back up with actual and the mileage I am talking about is the actual mileage.
Thanks
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2003 DURANGO SLT 4X4 4.7 3RD ROW LEATHER SONY XM/SIRIUS STEREO MICHELIN X-RAD LT BOSCH WATER PUMP DURALAST C-MAX BRAKES DURALAST ROTORS MAGELLAN MAESTRO GPS BILSTEIN HD SHOCKS GOODYEAR GATORBACK SERPENTINE BELT. HYPRO CAI KIT. MAG-HYTEK TRANSMISSION PAN MR GASKET RADIATOR CAP WITH BUILT IN THERMOMETER.
Last edited by hydrashocker; 05-01-2009 at 03:49 PM.
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MAN, you really have to learn to use the quotes for replies!
LOL
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- Truck of the Month: 12/06 DodgeForum.com, 1/06 DurangoClub.com, 07/07 Dakota-Durango.com
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Took it to Goodyear, he looked at me like I had three heads when I asked for back pressure test, and insisted that if CAT or O2 sensors were bad they would trip a code. I asked if they could be blocked enough to give bad fuel mileage but not enough build up to trip a code to the MIL, again the three head answer. Next place is a muffler shop, I know Hydra, if I had just taken it to a muffler shop I would be done now right?
Just on a lark I pulled the #1 plug for inspection, I picked #1 for ease of removal and since it is the beginning of the firing order. Compared it to the Haynes plug wear chart in the back insert of their manual. They look normal for heat range and temperature. I am computer illiterate with the photo attachments but I can send to members on request if they need clarification.
Install Mileage (76.2K) Current mileage 102.2K
Thanks,
Steve
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2003 DURANGO SLT 4X4 4.7 3RD ROW LEATHER SONY XM/SIRIUS STEREO MICHELIN X-RAD LT BOSCH WATER PUMP DURALAST C-MAX BRAKES DURALAST ROTORS MAGELLAN MAESTRO GPS BILSTEIN HD SHOCKS GOODYEAR GATORBACK SERPENTINE BELT. HYPRO CAI KIT. MAG-HYTEK TRANSMISSION PAN MR GASKET RADIATOR CAP WITH BUILT IN THERMOMETER.
Just an idea but during rebuild there can be fragments and particals that can go through the system and plug it up especially after a rebuild. You should have it done.
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- Truck of the Month: 12/06 DodgeForum.com, 1/06 DurangoClub.com, 07/07 Dakota-Durango.com
- Durangoer of the Year: 2006 DurangoClub.com
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- Truck of the Month: 12/06 DodgeForum.com, 1/06 DurangoClub.com, 07/07 Dakota-Durango.com
- Durangoer of the Year: 2006 DurangoClub.com
Still a bit early to tell but filled up the tanks after shocks were installed and so far I am already picking up about 20-25 miles per tank. I am back into the 300+ club again, I will monitor with actual during this tank but last tank was 258 miles and fill up was 17.5 Gallons, so just barely over 15 MPG.
FYI As for the photos, I agree with Hydra, Indy you are wrong. I wont ask where you got the photos, I am sure I do not want to know.
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2003 DURANGO SLT 4X4 4.7 3RD ROW LEATHER SONY XM/SIRIUS STEREO MICHELIN X-RAD LT BOSCH WATER PUMP DURALAST C-MAX BRAKES DURALAST ROTORS MAGELLAN MAESTRO GPS BILSTEIN HD SHOCKS GOODYEAR GATORBACK SERPENTINE BELT. HYPRO CAI KIT. MAG-HYTEK TRANSMISSION PAN MR GASKET RADIATOR CAP WITH BUILT IN THERMOMETER.
