I changed the front O2 sensors and it ran rich and the mileage was not great.Before I changed the fronts I got 15MPG pulling a 2200# trailer for about 850 miles. I changed the front O2 sensors and the mileage did not really change but my truck ran really rich. I just got the Walmart Fuel injector treatment and it made a HUGE difference in power and acceleration. This thing actually responds when i step on the gas now. Even up hill. It also helped the towing ability. I enjoy driving it.
It is like a new truck and it breathes beautifully. It is not like I have a 351, but compared to what it was, it is a rocket. It feels like it operates like it should. No more 3.slow.
Here is a list of the repairs/ maintenance I did:
New cat: $300
Cat Back: $150
3 O2 Sensors $140
K&N Filter $35
MAF Cleaner $7
Throttle Body Cleaner $7
Sea Foam $6
WalMart Special $20
Each step made an improvement but the final injector cleaning was the icing on the cake. I was ready to put my old O2 sensors back in because of the truck running rich. I did not want to plug my cat.
EDIT: Forgot: changed fuel filter after 12X,000 miles, doh! It helped
95 Ranger Styleside SWB 4X4, 3.0, Auto, 4.10, 145,000 Miles
Century Cap, BF Goodrich All Terrain 30x9.50's, Reese Hitch, K&N Air Filter, Taylor Wires, Splitfire Plugs (I have had good luck with them), Bed Mat, Upgraded to factory alloy rims from "argent wheels", Cat, Dynomax Cat Back, Additional Battery Charging System, Transmission Oil Cooler, Grizzly Grill/ Brush Guard, Hella 500 Amber Fogs, Chrome Diff Cover, Nerf Bars, new bumper.
Upgraded to NH registration from Mass (Best upgrade!)
OEM Tube Rear Bumper, Tow Hooks, 31x10.50's, Larger or Additional Fuel Tank, Locker
Last edited by Daily Driver; 12-09-2008 at 07:39 PM.
Reason: Forgot one piece of maintenance.