> Crap...After changing the timing belt, giving it a tune-up, new tires,
> and new exhaust, my V6 is still only getting 10-11 MPG. Does ANYONE
> have any ideas of what I can check?
>
> Two weeks and 180 miles ago, I cleaned my Autolite 3932's (gapped at
> .45), checked the compression (wet and dry-all consistently between 145
> and 155 lbs), removed the TB, and thoroughly cleaned the intake and TB.
>
> I also changed the timing chain (I did put it on correctly :), changed
> the oil, coolant, and filters. Yesterday I intalled a new Dynomax
> exhaust system. The only other mod I have is an electric cooling fan
> that I had replaced the stock with...
>
> When I first had these problems in April, it was sudden (MPG went from
> 21 to 10 from one fillup to the next). Since then it consistently gets
> 10-11.5 mpg (city or highway). My truck was already running badly then,
> so I can't say if I had any performance problems when it happened. Now
> my truck runs like it did when I got it, but still gets half the mileage
> it should. I can't figure this out.
Mike,
I dont know what to tell a man. I recently changed the dist cap, dist rotor,
spark plugs, and fuel filter. I also just cleaned the TB and always use some
kind of fuel injector/fuel system cleaner. I am also running synthetics in
the tcase, front diff and rear diff. Within the past month or two, my
mileage has also dropped considerably. I would say on the average I now get
an easy 30-40 miles less per tank. Highway wise, I barely get 15mpg, where
before I could clear 18. City mileage has dropped a ton, and I wont even
post those numbers. My truck does run awesome is has all the power in the
work, just the mileage sucks. I have the following mods, which may or maynot
help out with mpg:
MSD 6-Offroad Ignition, MSD RFI Noise Filter, MSD Universal Wiring
Harness, MSD 8.5MM SuperConductors, Accel Super Coil, Borg Warner
Select Brass Cap/Rotor, Autolite Copper Plugs(.050), QuickD Throttle Body,
Ford Motorsport #19lb/hr Matched Injectors, 'PoBoy' Homebrew Cold Air
Intake Kit Using GenIII Dak Air Hat, K&N #RE-0920 Cone Filter(900+ CFM),
K&N Breather Filter(PN#62-1520; All Metal), Flowmaster 3Chamber Delta-Flow
Muffler
The oxygen was replaced at 100,000 miles with another Mopar sensor. I have
thought of this being the culprit, just not sure since a faulty 02 sensor
wont necessarily throw out a fault code. I have also thought my converter
may need replacing. The stock converter went out at 75,000 miles and only
came with a 50,000 mile warranty. Both parts arent cheaper either, the o2
being the cheaper of the two depending on if I want to buy a dealer part of
go through a part store. Good luck with your problem and let me know if you
figure yours out!
Kyle
93 Dakota 4x4 V6
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:57:23 EDT