I have a 2005 jeep liberty and recently noticed i have lost allot of gas mileage. down to 200 miles to the tank. My jeep prior to this averaged 350-400 miles to a tank and has drastically dropped. i am an easy driver and easy on the pedal and last changed my oil, air filter and disconnected my Battery which helped out although it has started to drop back down again. My liberty only has around 65000 miles on it and i keep it in tip top shape. what would be the cause of such poor gas mileage? The gas mileage on my Jeep Rubicon is down from about 14MPG city to 10 MPG. I drive the same way every day. It has happened over the course of the past year. The dealer is telling me its cold weather, but I noticed the decline this summer. No engine lights. Nothing wierd - just the decline in MPG.
Posted by franknbean... on
change your spark plugs if they haven't been changed in awhile. check your tires for the propper psi there should be a sticker on the inside of your drivers door that will tell you recomended air pressures go by this not the recomendations on the tires. also where are you getting you gas does it contain ethanol sometimes this can burn faster.
Posted on Feb 05, 2009
Have code of P0031,P0037,P0051,P0057 on a 2005 jeep wrangler
Posted by doug52free on
these codes are o2 sensor related need to get dealership to check out
Posted on Jul 03, 2009
my 2005 jeep wrangler, the heat and a/c only blow out of the defrost vents no matter which setting it is set at. (I looked this problem up on-line before and they say that on some models there is a vaccuum hose problem where the cruise and heat vaccuum hoses connect, but I don't have cruise...)
Posted by nwad00 on
Open your hood and find a "T" connector right near the battery. Follow the line down below the battery (you will have to get under the Jeep). You will see that the line plugs into a 3 to 4 inch section of 3/16" tubing that is plugged onto a black in color, plastic box. Use a razor knife and trim off about 1/2" of this 3/16" tubing as it commonly cracks where it fits on the nipple of the black plastic box. The vacuum cannot build pressure properly with these cracks in this tubing, and therefore cause the selector door to malfunction when operating heat and a/c. It is a quick and easy five minute fix.
Posted on Jan 26, 2010
When idling my jeep runs a little rough, it also has a slight hesitation when you go to accelerate from an idle. It has a clean air-fiter, new spark plugs, and only has 39,000 miles. What could it be? Throttle body? Vacuum lines?
Posted by sreerslev on
try fuel injectors....run a bottle or two with full tank through it and see if that dont solve the problemo.....
Posted on Feb 01, 2009
Cruise control does not work on 2005 Rubicon. Light on dash work , but cruise control doesn't
Posted by jmccann083... on
On my 05 Wrangler Unlt'd Ruby - The vacuum hose on the drivers side of engine had come off, which disengaged my Cruise and the actuator which determines whether my heater points to the vent, Defrost or feet. Put it back on and secure with a cable tie.
If it is like mine, you will then have idling problems, especially when coming to a stop. You will need to clean the throttle body because the engine has picked up **** through the open port while it was off. Directions for that exist on this site elsewhere.
All of these are easy - i hadn't worked on a car in >25 years and it took me 30 min.
Posted on Sep 16, 2008
check engine light comes on & gas gauge goes to empty checked gas cap ok error # po463 comes up when checking with comp tool? mechanic thinks its tank level control problem. need advice .
Posted by lobro993 on
CODE PO463 IS FUEL LEVEL SENSOR FAULTY OR SENSOR WIRE HAS A SHORT.
Posted on Nov 27, 2010
When I turn on my air conditioner the cold air only blows out of my defrost vents no matter what I set the control knobs on. On recirculated air nothing comes out anywhere. I had a car stereo put in last winter but not sure if that would have messed up air controls.
Posted by j6ged on
Yeah, I would go up hill or pull away from a stop and the A/C would cut out and then come back once my speed was stabilized. It was a vacuum hose leak !! This mostly affected the upper dash blower fan.
Posted on Aug 03, 2012
What would cause code P1603 to occur on 2005 Jeep Rubicon
Posted by Guest on
I have an 05 6 cylinder automatic TJ. The other morning I was getting trouble codes U0101 and P1603. For a few seconds the Jeep was shaking and for the entire 30min ride it wouldn't shift into the last gear, it would just continue to rev. The next day I drove it and it was fine. I also noticed a slight high pitch whine noise coming from the engine at low speeds. Any suggestions? Thanks!
Posted on Dec 03, 2015
horn not working. Fuse is good. 2005 Jeep Wrangler. How do you remove the rubber cover on the sterring wheel to get at the horn.
Posted by jim_sigmon on
May be bad horn. Get a 12 volt test light or multi-meter and attach to the horn wire at the horn. Have a helper press the horn. If you have 12 volts when it is pressed, horn itself is bad. Otherwise, may be bad horn relay. Horn cover should pull off.
Posted on Dec 31, 2009
My cruise control no longer works and the light on the dash will not come on. Is there a fuse for the cruise control?
Posted by cvanlee on
no fuse ...sounds like the switch may have gone bad
Posted on Nov 13, 2008
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