Okay.. i have an 05 with the 6 cylinder. my problem is that sometimes when I start the engine, it goes for a bit, then dies. What's the problem?

thanks in advance!

Mine acted like this last week but only after it would warm up a bit. It was the TPS

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Blood Clot Red 03 Punisher Edition
245/75-16 Duratracs, Soft 8's, Ironman/clevis Lift, Monroe Sensa-trac rear shocks, JBA 3.5, GTP Hood Louvers, Roof Basket & Light bar, Mudd's Garage Rear Bumper
custom made items: cross rails, grill inserts, cargo shelf, lightbar, pin stripping & rock rails.
L.O.S.T. #DW090501

sounds like the TPS, check the battery/charging system while you're at it

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03 Renegade (Black)
177k miles 3.7L gas - 45RFE
Command Trac / 4.10s
Lift: ft. 790+ rr. JBA4+
The last of the TrailReady Front&Rear Bumpers and TR Rock Rails
Jarhead Offroad light covers
31x10.5R15 RedLetter Grabbers on Blackrock Dunes
L.O.S.T #KD098632

how would one go about checking that?

have the battery tested at autozone or something just to be sure because a bad battery can cause that symptom too

but most likely it's the tps

_________________
03 Renegade (Black)
177k miles 3.7L gas - 45RFE
Command Trac / 4.10s
Lift: ft. 790+ rr. JBA4+
The last of the TrailReady Front&Rear Bumpers and TR Rock Rails
Jarhead Offroad light covers
31x10.5R15 RedLetter Grabbers on Blackrock Dunes
L.O.S.T #KD098632

just bought the battery like 2 months ago... at the max optima 34 red

that's why batteries have warranties

but like i said, the greatest chance is the TPS

_________________
03 Renegade (Black)
177k miles 3.7L gas - 45RFE
Command Trac / 4.10s
Lift: ft. 790+ rr. JBA4+
The last of the TrailReady Front&Rear Bumpers and TR Rock Rails
Jarhead Offroad light covers
31x10.5R15 RedLetter Grabbers on Blackrock Dunes
L.O.S.T #KD098632

There aren't any error codes displayed? Maybe there's one within the BCM.
The only way I know to check the TPS or hidden error codes is to use a scanning tool. Would you happen to know somebody that could loan you one? There is a method to read the error codes from the dash.

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my trail & highway ride (and occasional tow rig)
04 Liberty Sport with a 2.5" lift, ProComp 245/75R16 AT's and two Hella700FF lamps (more accessories to come)

my trail queen
95 YJ with a RE 4" lift, 33" ProComp Extreme's, M8000 Winch, Lockrite Locker up front, Super35 in the rear and 4.88 gears

Same problem for the last few months. Changed spark plugs and it stopped.

No error codes were ever generated. At least visible ones.

Just changed my Battery yesterday from the original. Bought one from NAPA.

The spark plugs seemed to do the trick. they were original with about 95000 kms (55-60 miles?)

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2005 Liberty Renegade
Old Man Emu HD Coils, OME Struts, OME Shocks
Tow Package with Champion Receiver Shackle
RB1 Navigation
245/75R16 Goodyear Duratrac's (Installed November 24, 2010
Slightly Trimmed Front Bumper and Wheel Well Liner
Pinch Weld Pounded
Custom Rock Rails
Rock Crusher Diff Cover (Not installed)

well i just changed my spark plugs 15K ago...

I believe the most accurate way to check the TPS is through a manual test method that requires back probing the wires going to the TPS

and i'd rather spend 30 bucks on a new TPS than go probing chryslers 'gauge too small' wiring

_________________
03 Renegade (Black)
177k miles 3.7L gas - 45RFE
Command Trac / 4.10s
Lift: ft. 790+ rr. JBA4+
The last of the TrailReady Front&Rear Bumpers and TR Rock Rails
Jarhead Offroad light covers
31x10.5R15 RedLetter Grabbers on Blackrock Dunes
L.O.S.T #KD098632