20 Most Recent 2008 Jeep Wrangler Rubicon Questions & Answers

Switch is faulty is the first thing comes to my mind. Your spot on tho in your diagnosis, although you may have two pumps and tanks, one for front, one for rear. I would check all my fuses just to be sure, and I would look at all my waster tubes and make sure they are not clogged, check your nozzles too, as sometimes wax can clog them up.

New PCM plugs and wires? hun? new harness ,why? in a fire or wreck? running off road? or did you mean, new PCM, new spark wires, and all new 02s sensors' It wont be a bad PCM , sorry, 99% are good. P0132 the PCM never lies. it measure this and does a test and if it fails there is a circuit fault. the why to understand, DTCs (have a FSM factory serv. manual) and read how the test works. or do the tests it tells you do to to discover true cause) i have this car v6 3.8L: and 6speed and the FSM, book. verbatim. O2 SENSOR 1/1 CIRCUIT HIGH 1/1 means bank 1 , front sensor (upsteam) bank one means right bank, cylinder 1 side. what does HIGH mean? what is not clear is which side is failing, heater or CELL this test is the CELL pin (oxy out) pin 4. the test (called a monitor) finds that pin 4 is stuck at 5v. the o2 must be 0 to 1volt at all times. if stuck at 5vdc then the ground is open to CELL pin 3 (wire cut) or the 02 sensors is bad. (open) do you know how to back probe? a skill that is must for all modern cars. use needles with your meter. (DMM) (leather needles work in a pinch sold at walfart for 1buck) needle probes are 10x better key on and back probe pin 4, if at 5vdc or more(or near) it's wrong. btw page 2891 shows what to do in the FSM. yah 7000 pages. I think this pin floats to 5v if the wire is cut. fail 2 is that pin 4 is shorted to voltage ,well , the heater runs off of 12v and all cars (bad service) the 2 wires melt and short. here ill list all 4 pins (key on) 1- 12v heater. 2- ground 3 - ecu quite ground to 02 (cell minus) 4- CELL + out (this is the oxy signal) pin 4 must not be at 5v or 12v, but 0 to 1 volts. at key on or running. one more FSM quote Measure the voltage in reference to ground, not the (K902) O2 Return Upstream circuit. that means pin 3 to 4, is measured for best accuracy but 5vdc or 12vdc is gross wrong . if the o2 is new (is) then this quote covers most fails on most cars Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Oxygen Sensor and Powertrain Control Module connectors. here is the wiring. if you need more photos full size or more tests. or have questions, ask, i'm a retired ET, (controls systems , PLCs +) see FSM here on CD (best of best) https://www.techauthority.com/en-US/Pages/FacetSearchResults.aspx?make=Jeep&year=2008&model=WRANGLER+UNLIMITED+RUBICON+4X4&engine=3.8L+V6+%28SMPI%29&producttype=Service+Manuals&ptCatId=3083

with a socket + universal and an extension? you dont have full tools set? which engine,? gas or diesel? 3.8L my 2008 6speed, is yours 5 m.t or slush pump.>? a/t on mine, its easy. but cant answer with no engine stated or trans. or car bodies are same ,for sure. 2door.? right>? mine is 3.8L v6 i own a full FSM. too. 7400 pages. the books shows removing battery neg lug, or boom.acid bath then shield then says remove starter. see the bolts there? then as it drops down take of the solenoid wires. its you hands. it assumes you have full set of tools. extensions, universals., and sockets. but no engine options stated.or transmission.

why not say what is wrong or what NSS means. ok google says, its neutral safety switch (NSS) aka, as PRNDL for slush pump tranny (this name make it clear what it fits ,no?) aka, the clutch switch for sticks. on my 08 the clutch switchs is on top of the clutch pedal, in plain view. on a A/T slush pump its on the side of the tranny. when you move the A/t gear selector the cable then moves the tranny shift arm. on said arm on all a/T is the PRNDL. the PCM/TCM watches this switch at all times. and sets codes if fails. the REV part, runs the reverse lights too.

Side of transmission at linkages

LIGHT INDICATOR AND WIPER ALL PART OF YOU SWITCH ON THE STEERING COLUMN .BUT FIRST READ YOU MANUAL AND CHECK ALL THE FUSES.INSIDE AND OUTSIDE THE JEEP.NEXT FOLLOW THE GROUND WIRE FROM THE BATTERY AND MAKE SURE THE WIRE IS CLEAN AND TIGHT TO THE BODY.MORE GROUND WIRE WILL FIND UNDER THE DASH BOARD CLOSE TO THE DOOR HINCH. GOOD LUCK

reverse is a whole different circuit. via the transmission reverse switch.. my guess is you have burned out lamps. im looking at alldata.com now. (so can you) and i will pick the Reverse page, its boy scout simple battery, fuse 39, wires a switch and 2 lamps. i bet fuse 39 is blow, replace, it. some that look good, are in fact not (micro cracks) or use an ohm meter (dmm set to ohm low) 0 ohms good infinity bad. there is a fuse box in engine bay and cab.

google search images. 2008 Jeep Wrangler Rubicon diagramsyou will see many different diagrams.

the users guide partially and for sure the SM service manual covers that. so it blows out right.? that is a 1998 TJ jeep real name if USA i have real oEM book here, on it , fully chapter 8w is wiring all 8w-10- is power distribution there are 2 fuse 19 , one under hood and one cab. so hood it is Left hand drive, USA, LHD the PDC fuse box has lid and F19 is marked there A/c clutch] first is F19>> clutch relay>>> AC clutch

nothing on dash means the whole IP cluster is dead.? (fuses)_ Fuses are first, repeat 3 times for effect. front and rear turns dead or? tell what does work all and does not, telling just one thing bad, is not really usefull. for sure power feed wise. head lamps work and park?????? keyoff and on work. horn works brake lamps dead? engine runs good. I just sold my 2002 wrangler the last good real jeep it was, my bad selling it. i have all jeep service manuals so easy to answer this 88 to 2010 on most cares I fix dead headlamps first it is hardwired to work at an any time and super simple if not DRL JUNK . 02 TJ jeeps (pure love)./ chapter 8w-52 'turns 'blinks, hazard]s fuse 7 and 13 not blown combo flasher not dead. 5 wires. and one pin is IGN, oops. ign is fuse 13,oops, is it blown/ Hazards dead is same fuse and same InG fuse good. IGN power comes form KEY switch page 8w-11 IGN switch wire BK-DG , 12vdc key on. if not fuse14 blown 20ams and goes to the battery direct. all fuses in the PDC must good, and now dead batteries or its 4 cable logs ends, loose or rusty. end. fuse 10 and and F24 kills the cluster. and f15 fuse is 10 head lamps too and a CB breaker. fuse 7 dead kills park /neutral switch ,

check the injectors and make sure there is fire on those plugs in 3 and 4

possible a failed hydraulic follower or cam lobe problem

Bobby, oil pan bolt torques for 4.0 Wrangler. Oil Pan Bolts 1/4 84 in-lbs Oil Pan Bolts 5/16 132 in-lbs As far as sequence, see last link, start in center, criss cross pattern tighten snug all, then repeat to torque spec. Check the attached links,instruction and guides, Good luck "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info." Oil Pan Gasket leaking http://jeephorizons.com/tech/99_40l_torque_specs.html 98 jeep 4 0 oil pan bolt torque sequence specs Google Search